Technical innovation is a tool for human potential harnessing OR is human potential harnessing is a tool for technical innovation?My learnings of Computer Science engineering from NIT coupled with my drive for Human potential enhancement.
Saturday, September 11, 2010
Java beginners guide (core java) by ubj is now a document of birlasoft..copyright rests with me so for all of my blog followers here it is .
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Tuesday, August 3, 2010
ubj joins birlasoft








links::::::::::::::::::
FOR NEWS AND LATEST UPDATES GO TO http://www.facebook.com/?ref=home#!/pages/Birlasoft/119696010277..IN FACEBOOK..
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Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Monday, August 2, 2010
sql server 2005 GUIDE BOOK also uploaded as pdf
DOWNLOAD FROM THE FOLLOWING LINK::::::
http://www.esnips.com/doc/733cc180-ef12-4b96-99f1-73ec59553a92/Beginning-SQL-Server-2005-Programming-%282006%29/nsnext
http://www.esnips.com/doc/733cc180-ef12-4b96-99f1-73ec59553a92/Beginning-SQL-Server-2005-Programming-%282006%29/nsnext
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
DATA MINING TEXT BOOK IN THE FORM OF PDF UPLOADED AT ESNIPS
DOWNLOAD FROM THE FOLLOWING LINK::::::::::>
http://www.esnips.com/doc/d540743d-7f09-4b9b-81e6-22ee4127acff/Data.Mining.Concepts.and.Techniques.2nd.Ed/nsnext
http://www.esnips.com/doc/d540743d-7f09-4b9b-81e6-22ee4127acff/Data.Mining.Concepts.and.Techniques.2nd.Ed/nsnext
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Data_Warehousing_Fundamentals-Paulraj_Ponniah published in pdf form in esnips
DOWNLOAD FROM THE FOLLOWING LINK:::::::::>
http://www.esnips.com/doc/02419a51-2d9a-48ad-bbd6-41c9ca3fc0b1/Data_Warehousing_Fundamentals-Paulraj_Ponniah
http://www.esnips.com/doc/02419a51-2d9a-48ad-bbd6-41c9ca3fc0b1/Data_Warehousing_Fundamentals-Paulraj_Ponniah
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
FUNDAMENTALS OF NEURAL NETWORKING UPLOADED IN ESNIPS
LINK IS --------------------------------------------------------------------->
http://www.esnips.com/doc/4ab9696c-d3bc-42f7-aec4-4b6b62003910/FUNDAMENTALS-OF-NEURAL-NETWORK..COLLEGEGUIDE-BOOK-OF-NIT-RAIPUR
http://www.esnips.com/doc/4ab9696c-d3bc-42f7-aec4-4b6b62003910/FUNDAMENTALS-OF-NEURAL-NETWORK..COLLEGEGUIDE-BOOK-OF-NIT-RAIPUR
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Sunday, August 1, 2010
Expert system notes
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Wednesday, June 2, 2010
TOP ENGINEERING COLLEGES OF INDIA
This month being the month for counselling and students seeking out for their dream carriers seek to know which are the best engineering colleges which merit an admission and what if you cant make it to these colleges ?The order of preference is also an important question.
To unravel this i am putting up my own ranking system..which have been accumulated from my personal experience and knowledge having graduated from an NIT.
The students can also seek further clarification through collegekhabar.com and other avenues..but this is the best ranking that u possibly can get given the fact that attimes even the magazine ratings are manipulated by huge money granted by colleges to see themselves at number 1.
Now that my graduation is over i would like to give you guys some idea of exact order..all the nits and iits are mostly all good with good placements everywhere...I would still show you some order..
1.IIT bombay
2.IIT KANPUR
3.IIT DELHI
4. IIT KHARAGPUR
5.BITS PILANI
6.IIT ROORKEE
7.IIT MADRAS
8.IIT GUWAHATI
9.IT BHU
10.NIT WARRANGAL
11.NIT SURATKAL
12.NIT CALICUT
13.ISM DHANBAD
14.COLLEGE OF ENGINEERING ,ANNA UNIVERSITY
15.NIT TRICHI
16.DELHI COLLEGE OF ENGINEERING
17.PUNJAB COLLEGE OF ENGINEERING
18.BIT MESRA
19.JADAVPUR ENGINEERING COLLEGE
20.MANIT BHOPAL
21.MNNIT ALLAHABAD
22.VNIT NAGPUR
23.IIIT HYDRABAD
24.PUNJAB ENGINEERING COLLEGE ,CHANDIGARH
25.COLLEGE OF ENGINEERING ANDRA UNIVERSITY VISHAKHAPATNAM
26.SHIBPUR ENGINEERING COLLEGE,SHIBPUR,KOLKATA
27.NIT KURUKSHETRA
28.NIT ROURKELA
29.NIT JAMSHEDPUR
30.NIT JAIPUR
31.NIT SURAT
32.IIT ALLAHABAD
33.NIT DURGAPUR
34.MANIT BHOPAL
35.NIT HAMIRPUR
========================================
APART FROM THIS NIT RAIPUR,NIT PATNA,NIT AGARTALA AND NIT JALANDHAR ARE WORTHY ADMISSION.
BUT YES I MUST SAY THAT IT WOULD BE WISE FOR YOUR FUTURE CARRIER TO TAKE A ESTIMATED DROP AT KOTA ,INCASE U ARE NOT ABLE TO GET ADMISSION TO ANY OF THESE.ACTUALLY I AM SAYING SO BECAUSE I BELIEVE A YEAR IN KOTA COULD KIND OF HAVE A REVOLUTIONARY MOULDING EXPERIENCE IN THE PLIGHT OF PREPARATIONS OF A STUDENT.THE HISTORY SUGGESTS THAT FOR MOST PART OF THE IIT HISTORY MOSTLY TOPPERS CAME FROM KOTA ONLY BECAUSE OF THE REPLETE NUMBER OF COACHING INSTITUTES LIKE RESONANCE,FITJEE ETC .STUDENTS OF NIT OR IITS WERE HARDLY FRESHERS.FRESHERS AT OUR TIME WOULD BE ONLY 9-13% OF THE NET STRENGTH ..BUT THEN THE REVOLUTIONARY STEP TO CHANGE IIT PATERN AND ONLY ONE YEAR DROP ALLOWED STEP IMPROVED THE FRESHERS PERCENTAGE BUT STILL ONLY 30% OF SUCH INSTITUTES COMPOSE OF FRESHERS(AS FAR AS TODAYS DATE 2010 ).IT MAY HOWEVER CHANGE GRADUALLY IN COMING YEARS.BUT WHAT I SAID TO YOU WAS ON THE BASIS OF WHAT I HAD SEEN AND NOT WHAT MAY HAPPEN.
BUT THEN IF YOU ARE ACTUALLY TAKING THE ESTIMATED DROP THEN PLEASE DONT WASTE UR TIME..BECAUSE IN CASE U TAKE A DROP AND DONT STUDY AT ALL WHICH ALSO HAPPENS IN KOTA THEN THINGS MAY DRASTICALLY HAPPEN BAD FOR YOU ..YOU MAY LOSE OUT ON THE WHOLE THING..SO TAKE STEP AS U WISH BUT STUDY HARD..!THATS ALL THAT CAN BE SUGGESTED AT A PROFESSIONAL LEVEL..
To unravel this i am putting up my own ranking system..which have been accumulated from my personal experience and knowledge having graduated from an NIT.
The students can also seek further clarification through collegekhabar.com and other avenues..but this is the best ranking that u possibly can get given the fact that attimes even the magazine ratings are manipulated by huge money granted by colleges to see themselves at number 1.
Now that my graduation is over i would like to give you guys some idea of exact order..all the nits and iits are mostly all good with good placements everywhere...I would still show you some order..
1.IIT bombay
2.IIT KANPUR
3.IIT DELHI
4. IIT KHARAGPUR
5.BITS PILANI
6.IIT ROORKEE
7.IIT MADRAS
8.IIT GUWAHATI
9.IT BHU
10.NIT WARRANGAL
11.NIT SURATKAL
12.NIT CALICUT
13.ISM DHANBAD
14.COLLEGE OF ENGINEERING ,ANNA UNIVERSITY
15.NIT TRICHI
16.DELHI COLLEGE OF ENGINEERING
17.PUNJAB COLLEGE OF ENGINEERING
18.BIT MESRA
19.JADAVPUR ENGINEERING COLLEGE
20.MANIT BHOPAL
21.MNNIT ALLAHABAD
22.VNIT NAGPUR
23.IIIT HYDRABAD
24.PUNJAB ENGINEERING COLLEGE ,CHANDIGARH
25.COLLEGE OF ENGINEERING ANDRA UNIVERSITY VISHAKHAPATNAM
26.SHIBPUR ENGINEERING COLLEGE,SHIBPUR,KOLKATA
27.NIT KURUKSHETRA
28.NIT ROURKELA
29.NIT JAMSHEDPUR
30.NIT JAIPUR
31.NIT SURAT
32.IIT ALLAHABAD
33.NIT DURGAPUR
34.MANIT BHOPAL
35.NIT HAMIRPUR
========================================
APART FROM THIS NIT RAIPUR,NIT PATNA,NIT AGARTALA AND NIT JALANDHAR ARE WORTHY ADMISSION.
BUT YES I MUST SAY THAT IT WOULD BE WISE FOR YOUR FUTURE CARRIER TO TAKE A ESTIMATED DROP AT KOTA ,INCASE U ARE NOT ABLE TO GET ADMISSION TO ANY OF THESE.ACTUALLY I AM SAYING SO BECAUSE I BELIEVE A YEAR IN KOTA COULD KIND OF HAVE A REVOLUTIONARY MOULDING EXPERIENCE IN THE PLIGHT OF PREPARATIONS OF A STUDENT.THE HISTORY SUGGESTS THAT FOR MOST PART OF THE IIT HISTORY MOSTLY TOPPERS CAME FROM KOTA ONLY BECAUSE OF THE REPLETE NUMBER OF COACHING INSTITUTES LIKE RESONANCE,FITJEE ETC .STUDENTS OF NIT OR IITS WERE HARDLY FRESHERS.FRESHERS AT OUR TIME WOULD BE ONLY 9-13% OF THE NET STRENGTH ..BUT THEN THE REVOLUTIONARY STEP TO CHANGE IIT PATERN AND ONLY ONE YEAR DROP ALLOWED STEP IMPROVED THE FRESHERS PERCENTAGE BUT STILL ONLY 30% OF SUCH INSTITUTES COMPOSE OF FRESHERS(AS FAR AS TODAYS DATE 2010 ).IT MAY HOWEVER CHANGE GRADUALLY IN COMING YEARS.BUT WHAT I SAID TO YOU WAS ON THE BASIS OF WHAT I HAD SEEN AND NOT WHAT MAY HAPPEN.
BUT THEN IF YOU ARE ACTUALLY TAKING THE ESTIMATED DROP THEN PLEASE DONT WASTE UR TIME..BECAUSE IN CASE U TAKE A DROP AND DONT STUDY AT ALL WHICH ALSO HAPPENS IN KOTA THEN THINGS MAY DRASTICALLY HAPPEN BAD FOR YOU ..YOU MAY LOSE OUT ON THE WHOLE THING..SO TAKE STEP AS U WISH BUT STUDY HARD..!THATS ALL THAT CAN BE SUGGESTED AT A PROFESSIONAL LEVEL..
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
INTRODUCTION TO NEURAL NETWORKS
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
PLANNING ( A CHAPTER OF COMPUTER SCIENCE AND ENGINEERING FINAL SEMESTER)
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
PRACTICING A CAT QUESTION PAPER FOR APTITUDE CAN BE BENIFICIAL
BESIDES GATE IT CAN HELP IN BUILDING U UP FOR CAT AND OTHER COMPETITIVE EXAMS WHICH REQUIRES GOOD ENGLISH AND MATHS.
e-Prac CAT # 02 - Test
e-Prac CAT # 02 - Test
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
HIGHER MATH QUESTIONS..
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
SEARCH IMPLEMENTATION
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
FUZZY LOGIC AND HOW IT WORKS
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
B PROLOG ADVENTURE( A COURSE MATERIAL FOR COMPUTER SCIENCE AND ENGINEERING)
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Saturday, May 15, 2010
RBF ..THE DOCUMENTS WHICH WE READ FOR EXAMS..
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
fuzzy logic
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
notes for expert system[for juniors of 8th sem]
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Saturday, May 1, 2010
RED HAT LINUX QUESTIONS
RED HAT LINUX ALL POSSIBLE QUESTIONS ON REDHAT LINUX FOR SYSTEM ADMINISTRATOR COURSE.
====================================================================================UDDALAK BANERJEE(UBJ)
Q.What is SCSI?
ANS:IT is set of evolving standard electronic interfaces that allow personal computers to communicate with peripheral hardware
it allows connecting of 7 to 15.
Q.What is ide?
ANS:It is a standard electronic interface used between the data path of a computer motherboard and the disk storage device.
Q.What is Gateway?
ANS:The Ip address of the machine that has the network IDs of other network in the Internet/Intranet so that it can forward the packets to other networks for delivery.
Q.What is a netmask?
ANS:A 32 bit value that allows the recipient of IP packets to distinguish network ID of the ipaddress from the host id .
Q.What is MasterBootRecord?
ANS:It is information stored on the first sector of any hard disk.IT also contains bootloader program.
Q.What are the types of Partition?
ANS: 1.primary--partition from which OS boots
2.Extended--store data or program
#There can me more than one primary partition at a time but only one of them is a active primary partition.
Q.What is partition naming scheme in Red Hat LInux?
ANS: /dev/xxyN
/dev-where all device files reside
xx:-Types of device on which the partition resides hd or sd
y:-device on which partition resides.
/dev/hda2-First hard disk's(a) second primary partition.
/dev/sda5-First hard disk's first logical partition.
N-partition numbers.
1-4-primary partition
5-logical partition.
Q.What are 2 types of partition?
Ans:1./boot partition (less than 16 mb)
2.root partition
#all files except boot files are stored here.
Q.What is network boot diskette image file?
ANs:bootnet.img
Q.What is 'PCMCIA'?
ANS:IT stands for personal computer Memory card International Assosiation.
PCMCIA support diskette image file is pcmcia.img and is located in the images directory on the Redhat cd.
Q.WHAT ARE The way of installing REDHAT linux in your system?
Ans: 1.local CDROM
2.NFS IMAGE
3.FTP
4.HARD DRIVE
Q.What Installation classes in Redhat linux?
Ans: 1.WorkStation
2.Server
3.Custom
Q.How to start installation from cd?
ANs: d:
cd\dosutils
autoboot.bat
Q.What is default method of installation?
Ans:The default method of installation of RedHat Linux is autoprobing to automatically detect the hardware in your system.
Q.What is expert mode?
Ans:boot:expert
if initial set up doesnot detect hardware you may need to restart the installation in expert mode.
Q.How can we perform unintended installation?
ANs: by KICKSTART MODE
boot:linux ks
it looks for file named ks in the floopy
Q.What are the five virtual consoles ?
Ans:f1-- installation program's dialog box
f2--- shell prompt
f3---install log
f4---system log
f5---Other messages
Q.Why is virtual consoles used?
Ans:so that user can work on multiple terminals.
Q.How to change keyboard type after you have booted your RedHat Linux System?
Ans:usr/sbin/kbconfig
or setup command if logged in as root
Q.How is partition created?
ANs:1.disk druid utility
2.fdisk
Incase os/2 is also present how would partitions be done?
Ans: fdisk can be used to set partition types to linux swap and linux native.
Q.What are Druid Buttons sections options?
Ans:ADD,EDIT,DELETE,OK AND BACK
Q.What are function keys that are used incase of Druid?
Ans:f2--add nfs
f5:Reset
TO select every partition we use spacebar
Q.How to configure a mouse?
ANs:to determine the interface of the mouse device,check where the mouse cable plugs into the system.
IF the connector at the end of the mouse cable plugs into a rectangular connector,you have a serial mouse.
Q.How to configure mouse after installation.?
Ans:/usr/sbin/mouseconfig command
Q.What are options for setting ip addresses at installation time?
Ans:1.Static Ip address
2.BOOTp
3.DHCP
Q.how to configure Tcp/ip?
ANs:Enter ipaddress -
NETMASK-
DEFAULT GATEWAY-
PRIMARY NAMESERVER-
Q.How configure the network?
ANs:Domain name
Host name
Secondary Nameserver(IP)
Tertiary Nameserver(ip)
Q.how to configure clock and set to GMT?
ANs:Select hardware clockset to GMT
and uncheck this to follow local time
Q.how to select services for start on reboots?
ANs:Services dialog box /ok/enter /configurePrinter/enter
Q.what is authentication configuration?
Ans: ENABLE NIS
USE SHADOW PASSWORD
ENABLE MD5 PASSWORDS(ENABLING THIS ALLOW A LONG PASSWORD OF 256 CHARACTERS)
Q.HOW TO INSTALL LILO?
Ans:1.install it at MASTER BOOT RECORD
2.First sector of your root partition.
Q.HOW is xwindow system configured?
ANs:While configuring the xfree86 server,the installation program launches the xconfigurator utility.
Q. How to customerize your computer?
ANs:Custom/ok/Custom Monitor/OK/Screen Config/Dont probe
Q. What is default group name?
ANs: Username
Q.How to check Userid and groupid?
Ans: using id [opition][username]
options:
-u--- username
-g---groupid
-G---Supplimentary group
-n---print name
Q.What is umask value?
ANs: IT determines the initial file permission on newly created file.
Umask 002 --> 666 -002=664
Q. What are default values of user and group?
Ans root userid=0 groupid=0
bin groupid=1
steve groupid=500
Q.How can you force all files created to have same groupid as that of directory in which it is created?
Ans:chmod g+s (directory name)
Q.what is a sticky bit?
Ans:For an executable program file,a sticky bit saves the programs text image on the swap device so that it loads more quickly when it runs.Thus the program sticks to memory ,hence name "sticky bit"
Q.How to use sticky bit?
Ans:chmod +t dir1
Q.What info is present in following files
1./etc/passwd
2./etc/shadow
3./etc/group
4./etc/gshadow
5./etc/default/useradd
6./etc/skel
7./etc/login.defs
Ans:1, user account information
2.maintains password related information of the users in an encrypted and secure
3.maintain group information
4.maintain group password in an encrypted form
5.Maintain the default information that is used whenever new user is created
6.The directory contains default files that are copied to user home directory.
7.This contains system wide settings that are used while creating new users and groups.
Q.What are contents of above files?
Ans:1.Username,Password,userid,groupid,comment,HOME,LOGINSHELL
2.Username,password,last,may,must,warn,Expire,diable,reserved.
3.groupname,password,groupid,user.
5. Group,home,inactive,expire,shell,skel
directly etc/default/useradd can be edited to create users
6.It acts as home directory for newly created user
7./etc/logindefs file contains system wide settings
Q.what are opitions available for useradd command?
Ans: -C comment
-d Path for user home directory
default:/home/loginname
-e expire date
when user account will be disabled
mm/dd/yy format
-f inactive days
value 0 disable the account -1 does not disable
-g initial groups .The option is used to specify the group name or number of the users login group. Default is 1
-G group-this option specifies a list of supplementary groups of which you will become a member
-u UID-default users if value>99 and greater than every other id
0-99 -uid used for the system
UID STARTS FROM 500 UPWARDS
-s shell -specify loginshell
-n -turnoff the feature that group will have same name as the username
Q.How to delete a user account?
Ans:userdel command
userdel [-r] login
used remove his home directory and all files in his home directory
Q.How to add a group?
Ans:group add -g GID
-r creates system account that is group having GID lower than 500
-f supress error messages
Q how to modify a group?
Ans: groupmod -n ubj
where ubj is name of the group
else use group id with -g
group mod -g 234
Q.what is use of groupdel?
ANs: It deletes a groupaccount from the system.
It changes /etc/group file
You have to manually change groupid for the files whose groupowner has been deleted.
groupdel groupname
Q.What is use of newgrp?
Ans: It is used to change the group identification for a user.It logs the user into a new group.
newgrp[group]
IF no group is specified the group is changed to the users default GID
Q. Suppose ubj has primary group troy and supp group thomas .How to login as thomas?
Ans newgrp thomas.
Q.what are uses of pwconv and pwunconv?
ANs:pwconv-creates the shadow file that stores userpassword in an encrypted form to provide better security.
pwunconv- remove the shadow password system.
Q.What are use of pwck and grpck?
Ans:pwck[-r][password shadow]
-r is used to execute pwck command in readonly mode.
here etc/passwd and etc/shadow files are checked.
grpck[-r] [group][shadow]
etc/group and etc/shadow options are checked.
Q.How can a root user run LINUX CONF?
ANS: IT can be run by root by any of the following interfaces--
1.command line
2.character based
3.xwindow based
4.web based
to enable it rootconfig/networking/misc/linuxnetworkacc
Q.What is use of KDE?
Ans: it is k desktop environment.
it is used to manage users and groups in LINUX SYSTEM.
Q.what are options used with chgrp?
ANs:IT is used to change group ownership for a file or directory.
option -r changes group ownership of files and directories recursively under a particular directory
-f it suppresses most of the error messages for instance if the filename that you specify doesnot exist
-v it stands for verbose .this displays status of all files processed.
Q,what are options used with su?
Ans : - makes a new shell created as users login shell
This reset all the environment variables except TERM,HOME,SHELL
-m or -p- it preserves the environment variable
It doesnot reset the values of environment variable the HOME,USER,LOGINNAME,SHELLS
-S(SHELL NAME) IT SPECIFIES SHELL TO BE USED BY NEW USER
-C(COMMAND) IT SPECIFIES COMMANDS TO BE RUN ON NEW SHELL
Q.How to know whether printer daemon is running or not?
Ans lpc status
Q.what are components of print services in LINUX?
Ans:1.the print device files(/dev file)
2.the spooler(by lpd command)
3.print queue'(by lpq command)
4.the printer capablity etc/printcap database
Q.what is spooling?
Ans:Spooling is the process by which print jobs are rendered to a disk based file that is understood by the printer and sent for printing
It is carried out by lpd(lline printer daemon)
The spool file are store at/var/spool/lpd
Q.Suppose two printer lp and lp0 are connected through server Message block (SMB) service?HOw to arrange for the directory specification?
Ans::sd--- specifies spool directory
:mx-----specifies maximum filesize 0 index unlimited
:sh---specifies printer to suppress the printing of page header
:if---Specifies name of input filter
:at---specifies name of accounting file
Q.What is a taper?
Ans:IT is a tapedrive backup utility.
IT is used to maintain compressed or uncompressed archive on tapes or removable media
Taper -t devicetype option device
l-harddisk
i-ide tape drive
s-scsi tape drive
m-removable floppy disk
z-floppy tape drive.
Q What is use of rpm?
Ans1.Installing
2.upgrading
3.uninstalling
4.Querying
5 .verifying
i386 means architecture of package
rpm -option package file
i=install
v=verify
h=print hashmark
u=upgrade
f=upgrade if older version exist
q=used to query on packages
e=uninstall
Q.Suppose you come across a file that you donot recognise and would like to find out which package owns it .How would you do ?
Ans: rpm -qf/usr/bin/ubj
ubj-12.4.14
Q.SUppose you accidentally deleted somefile but are not very sure what you have deleted .If you want to verify what you have deleted then what step should you take?
Ans rpm-Va
Q.How to obtain more information about a package?
Ans:rpm -qip eject 2.0
Q.What are the 3 modes of cpio facility?
Ans:copy out-copy files into archive
copy in -extracts and list files from an archive
copy pass-copy files from one directory to another.
Q What is the disadvantage of dump facility?
Ans:It makes the backup program specific to only one filesystem.
Q WHat are backup tools?
Ans in redhat it is tar,cpio and dump
Utilities used are BRU 200O AND TAPER
Q What precaution should we take to run backup?
Ans:Run the system as single user
by #init s
Q. how to create and extract tar files?
Ans: tar -cvf name ========creates files with file name as name
tar -xvf name=============extracts files with filename as name
x=extract file
t=display list
a=concatenates tar file
Q.what are the raid levels supported for LINUX ?
Ans:Raid 0 ,1 and 5
Q.What is command to mount the usb device?
Ans:mount -t /dev/sda1/mnt/usb
t is used to specify the type of filesystem that is present on the diskette.
/dev/st0 method of access is sequential
Q.How to remove print job from the print queue?
Ans:by lprm command
Q.What is use of rlpr?
Ans:It is used to send a printjob directly to a queue on a remote machine without configuring the printer on local machine.
Q How to print files to specified printer.?
Ans:lpr
Q What is the command for formatting large text files in linux for printing?
Ans: pr
QHow to specify a printer on which output is to be printed?
ANs: lpr command with -p option
Q.What are types of printers that can be configured in LINUx?
Ans:1. local printer connected to linux server
2.Remote unix/linux(lpd) printer .A printer that is physically connected to a unix machine
3.Window 95/Windows nt (smb printer)
4.NOvell Network(NCP) printer
Q.what is use of Lpc?
Ans:Lpc enable--enable the printer to accept new jobs
Lpc status---check status of printer daemon and queue
Q What are characterestics of NFS?
ANs:1.It enable the sharing of filesystem over a network
2.NFS follow the client server architecture in which the server is the machine that shares its filesystem and the clients are the hosts that access the shared system.
Q.How do you share resources in a Novell Netware and linux?
ANs:using Netware core protocol(NCP)
Q.What are the daemon used in case of NFS?
Ans:1.Portmapper
2.nfsd
3.mountd
Portmapper manages remote procedure call(RPC)
portmap runs as a server and converts RPC program numbers into defense advanced research Project Agency protocol port numbers.
Q.How to start portmap?
Ans:/etc/rc.d/init.d/portmap start
Q.how to start NFS?
Ans:/etc/rc.d/init d /nfs start
Q.What does fstab file contain?
Ans:It contains descriptive information of the filesystem that have to be mounted automatically at boot time
Q.What is use of netconf utility?
Ans:IT is used to configure NFS graphically
Q.What is use of fsconf package?
ANs:It can be used from NFS client to mount NFS filesystem
Q.Mountd is not running What to do?
ANs Start mountd by following command
kill all -HUP /usr/sbin/rpc.mountd
Q.On NFC server the exported filesystem has been mounted after NFS was started.IN such a case the server is exporting the underlying mount point.What to do?
Ans:Stop the nfsd and restart it
The client machine also needs to unmount then remount the file system.
Q.What are the components on the Samba suite?
Ans:1.smbd-provide file and print services to SMB clients
config fle--etc/smb.conf
2.nmbd-provide name serving and browsing support
It helps in the browsing protocols which make up the Windows Network Neighbourhood view.
3.samba-shell script in /usr/sbin directory
It is used to stop and start samba smbd and nmbd deamons
4.smbclient-The utility is used to access SMB shares on window machines.
5.nmblookup-allows NETBIOS name queries to be made from Linux machine
#nmb lookup steve-ird
6.testparm -checks smb.conf file for errors
7.lmhosts-It is a samba file for NETBIOS name to IT address mapping
Q.What are the sections of /etc/smb.conf file?
Ans 1.global section
all the parameters defined here act as defaults for the sections that do not specifically define those parameters
2.homes section
This section allows a remote user to access only his/her own HOME directory on the LINUX mACHINE
3.THE PRINTER SECTION
Shares the printer defined in /etc/printcap file
Q.how to access Samba shares from Linux Machines?
Ans 1.smbclient command
It provides a FTP like command line interface that allows transfer of files from a share on a SMB Server
Q.smbmount command
Mount a samba server
Q.HOW to enable SWAT?
Ans 1.goto etc/services
SWAT 901/tcp--------this line should not be commented
2.Edit /etc/inetd.conf
to remove comment before following line
SWAT stream tcp ...
3.restart the inetd daemon
kill all -HUP inetd
Q.How to create and manage SAMBA shares?
Ans:1.By editing /etc/smb.conf directly by text editor
2.By using netconf utility to create SAMBA share.
3.BY using SWAT.
Q What are the subnet masks used for A,B AND C NETWORK?
Ans:A--- 255.0.0.0
B----255.255.0.0
c----255.255.255.0
Q.When the linux server is switched on how to enable dhcpd?
Ans:By ntsysv command.
Q.What is stored in dhcpd.leases file?
Ans:The Ip address leased by the DHCP server to specific clients are stored in a filenamed dhcpd.leases.
Q.What is the empty file creation command
Ans:Touch /etc/dhcpd.leases
Q how to configure DHCP for linux clients?
ANs:Type netconf/Client task /basic host information/config mode
Q.How to start dhcpd from commandline?
Ans:/sbin/dhcpd
Q.how to turn off the network?
ANs:/sbin/dhcpcd-k
Q.what are the commands used to see ip address configuration in most used systems?
Ans: WIN 95---------WINIIPCFG
WINNT---------------IPCONFIG
LINUX---------------IFCONFIG
Q.You have configured the dhcpd daemon to obtain an Ipaddress during boot time by adding IT IN THE BOOT UP SCRIPT.hOWEVER WHEN YOU BOOT YOUR MACHINE IT DOESNOT HAVE ANY IPADDRESS.HOW TO RESOLVE?
Ans: Use the -r option while starting dhcpcd daemon
/sbin/dhcpcd-r
Q.What are the types of DNS Server?
Ans: 1.primary(translates domain name to IP ADDRESS)
2.secondary(derives its data from another nameserver)
3.Master(it includes primary and secondary nameserver and participate in zone transfer(ie file transfer from primary to secondary))
4.caching(recieves the DNS request from a DNS resolver and forwards the request to another nameserver
Q.In which way can a Httpd daemon run?
Ans:1.standalone
2.inetd
Q.When is inetd used?
Ans: ONLY IN CASE---
1.Linux server is configured to run multiple services
2.When we donot want multiple copies of the daemon running
The config setting for inetd is present in file etc/inetd.conf
Q.which are the 3 configuration files for APACHE?
Ans: 1.httpd.conf--IT contains directories that control the operation of the server daemon
2.srm.conf--controls the specifications of the documents that the server provides to client
3.access.conf--This file defines the server settings that affect the type of services allowed and under what circumstances
Q.How to start Proxy server in Lynx?
Ans: Uncomment the setting part by searching the keyword
http_proxy
Q.how to start proxy server in Netscape?
ANs:EDIt/perferences/Advanced/Proxies/Manual Proxy config
Q.how to start proxy in INternet explorer?
Ans:Tools/Internet Options/connections/Lansettings/proxy server
Q.what are the different types of proxy server used?
Ans:1.Application Proxies
2.SOCKS proxies
Q.What are Application Proxy and Socks proxies?
Ans:Application proxies are those servers which handle all requests
They support user authentication
SOcks proxies are widely used as firewall socks server appears as a client to the application server the client are hidden.
Q.What are the types of firewall?
Ans:1.proxy server
2.Packet filtering firewall
proxy server blocks selected network packets
packet filtering firewall denies access to specific hosts on the Internet
Q.how to test the Apache server?
Ans:lynx local host
Q.HOw to deny access to output chain?
Ans:ipchain -P output deny
Q.How to specify the default policy for forward chain as DENY that is drop packets?
Ans:ipchain -p forward deny
Q.What are the options used mostly with ipchains?
Ans: -N --creates new chain
-x--Deletes an empty
-p--Changes policy for a built in chain
-l--lists the rules in a chain
-F--flushes the rules out of a chain
-z--zeroes the packet and byte counters on all the rule in a chain
-A--Appends a new rule to a chain
-I--Inserts a new rule at some position in a chain.
====================================================================================UDDALAK BANERJEE(UBJ)
Q.What is SCSI?
ANS:IT is set of evolving standard electronic interfaces that allow personal computers to communicate with peripheral hardware
it allows connecting of 7 to 15.
Q.What is ide?
ANS:It is a standard electronic interface used between the data path of a computer motherboard and the disk storage device.
Q.What is Gateway?
ANS:The Ip address of the machine that has the network IDs of other network in the Internet/Intranet so that it can forward the packets to other networks for delivery.
Q.What is a netmask?
ANS:A 32 bit value that allows the recipient of IP packets to distinguish network ID of the ipaddress from the host id .
Q.What is MasterBootRecord?
ANS:It is information stored on the first sector of any hard disk.IT also contains bootloader program.
Q.What are the types of Partition?
ANS: 1.primary--partition from which OS boots
2.Extended--store data or program
#There can me more than one primary partition at a time but only one of them is a active primary partition.
Q.What is partition naming scheme in Red Hat LInux?
ANS: /dev/xxyN
/dev-where all device files reside
xx:-Types of device on which the partition resides hd or sd
y:-device on which partition resides.
/dev/hda2-First hard disk's(a) second primary partition.
/dev/sda5-First hard disk's first logical partition.
N-partition numbers.
1-4-primary partition
5-logical partition.
Q.What are 2 types of partition?
Ans:1./boot partition (less than 16 mb)
2.root partition
#all files except boot files are stored here.
Q.What is network boot diskette image file?
ANs:bootnet.img
Q.What is 'PCMCIA'?
ANS:IT stands for personal computer Memory card International Assosiation.
PCMCIA support diskette image file is pcmcia.img and is located in the images directory on the Redhat cd.
Q.WHAT ARE The way of installing REDHAT linux in your system?
Ans: 1.local CDROM
2.NFS IMAGE
3.FTP
4.HARD DRIVE
Q.What Installation classes in Redhat linux?
Ans: 1.WorkStation
2.Server
3.Custom
Q.How to start installation from cd?
ANs: d:
cd\dosutils
autoboot.bat
Q.What is default method of installation?
Ans:The default method of installation of RedHat Linux is autoprobing to automatically detect the hardware in your system.
Q.What is expert mode?
Ans:boot:expert
if initial set up doesnot detect hardware you may need to restart the installation in expert mode.
Q.How can we perform unintended installation?
ANs: by KICKSTART MODE
boot:linux ks
it looks for file named ks in the floopy
Q.What are the five virtual consoles ?
Ans:f1-- installation program's dialog box
f2--- shell prompt
f3---install log
f4---system log
f5---Other messages
Q.Why is virtual consoles used?
Ans:so that user can work on multiple terminals.
Q.How to change keyboard type after you have booted your RedHat Linux System?
Ans:usr/sbin/kbconfig
or setup command if logged in as root
Q.How is partition created?
ANs:1.disk druid utility
2.fdisk
Incase os/2 is also present how would partitions be done?
Ans: fdisk can be used to set partition types to linux swap and linux native.
Q.What are Druid Buttons sections options?
Ans:ADD,EDIT,DELETE,OK AND BACK
Q.What are function keys that are used incase of Druid?
Ans:f2--add nfs
f5:Reset
TO select every partition we use spacebar
Q.How to configure a mouse?
ANs:to determine the interface of the mouse device,check where the mouse cable plugs into the system.
IF the connector at the end of the mouse cable plugs into a rectangular connector,you have a serial mouse.
Q.How to configure mouse after installation.?
Ans:/usr/sbin/mouseconfig command
Q.What are options for setting ip addresses at installation time?
Ans:1.Static Ip address
2.BOOTp
3.DHCP
Q.how to configure Tcp/ip?
ANs:Enter ipaddress -
NETMASK-
DEFAULT GATEWAY-
PRIMARY NAMESERVER-
Q.How configure the network?
ANs:Domain name
Host name
Secondary Nameserver(IP)
Tertiary Nameserver(ip)
Q.how to configure clock and set to GMT?
ANs:Select hardware clockset to GMT
and uncheck this to follow local time
Q.how to select services for start on reboots?
ANs:Services dialog box /ok/enter /configurePrinter/enter
Q.what is authentication configuration?
Ans: ENABLE NIS
USE SHADOW PASSWORD
ENABLE MD5 PASSWORDS(ENABLING THIS ALLOW A LONG PASSWORD OF 256 CHARACTERS)
Q.HOW TO INSTALL LILO?
Ans:1.install it at MASTER BOOT RECORD
2.First sector of your root partition.
Q.HOW is xwindow system configured?
ANs:While configuring the xfree86 server,the installation program launches the xconfigurator utility.
Q. How to customerize your computer?
ANs:Custom/ok/Custom Monitor/OK/Screen Config/Dont probe
Q. What is default group name?
ANs: Username
Q.How to check Userid and groupid?
Ans: using id [opition][username]
options:
-u--- username
-g---groupid
-G---Supplimentary group
-n---print name
Q.What is umask value?
ANs: IT determines the initial file permission on newly created file.
Umask 002 --> 666 -002=664
Q. What are default values of user and group?
Ans root userid=0 groupid=0
bin groupid=1
steve groupid=500
Q.How can you force all files created to have same groupid as that of directory in which it is created?
Ans:chmod g+s (directory name)
Q.what is a sticky bit?
Ans:For an executable program file,a sticky bit saves the programs text image on the swap device so that it loads more quickly when it runs.Thus the program sticks to memory ,hence name "sticky bit"
Q.How to use sticky bit?
Ans:chmod +t dir1
Q.What info is present in following files
1./etc/passwd
2./etc/shadow
3./etc/group
4./etc/gshadow
5./etc/default/useradd
6./etc/skel
7./etc/login.defs
Ans:1, user account information
2.maintains password related information of the users in an encrypted and secure
3.maintain group information
4.maintain group password in an encrypted form
5.Maintain the default information that is used whenever new user is created
6.The directory contains default files that are copied to user home directory.
7.This contains system wide settings that are used while creating new users and groups.
Q.What are contents of above files?
Ans:1.Username,Password,userid,groupid,comment,HOME,LOGINSHELL
2.Username,password,last,may,must,warn,Expire,diable,reserved.
3.groupname,password,groupid,user.
5. Group,home,inactive,expire,shell,skel
directly etc/default/useradd can be edited to create users
6.It acts as home directory for newly created user
7./etc/logindefs file contains system wide settings
Q.what are opitions available for useradd command?
Ans: -C comment
-d Path for user home directory
default:/home/loginname
-e expire date
when user account will be disabled
mm/dd/yy format
-f inactive days
value 0 disable the account -1 does not disable
-g initial groups .The option is used to specify the group name or number of the users login group. Default is 1
-G group-this option specifies a list of supplementary groups of which you will become a member
-u UID-default users if value>99 and greater than every other id
0-99 -uid used for the system
UID STARTS FROM 500 UPWARDS
-s shell -specify loginshell
-n -turnoff the feature that group will have same name as the username
Q.How to delete a user account?
Ans:userdel command
userdel [-r] login
used remove his home directory and all files in his home directory
Q.How to add a group?
Ans:group add -g GID
-r creates system account that is group having GID lower than 500
-f supress error messages
Q how to modify a group?
Ans: groupmod -n ubj
where ubj is name of the group
else use group id with -g
group mod -g 234
Q.what is use of groupdel?
ANs: It deletes a groupaccount from the system.
It changes /etc/group file
You have to manually change groupid for the files whose groupowner has been deleted.
groupdel groupname
Q.What is use of newgrp?
Ans: It is used to change the group identification for a user.It logs the user into a new group.
newgrp[group]
IF no group is specified the group is changed to the users default GID
Q. Suppose ubj has primary group troy and supp group thomas .How to login as thomas?
Ans newgrp thomas.
Q.what are uses of pwconv and pwunconv?
ANs:pwconv-creates the shadow file that stores userpassword in an encrypted form to provide better security.
pwunconv- remove the shadow password system.
Q.What are use of pwck and grpck?
Ans:pwck[-r][password shadow]
-r is used to execute pwck command in readonly mode.
here etc/passwd and etc/shadow files are checked.
grpck[-r] [group][shadow]
etc/group and etc/shadow options are checked.
Q.How can a root user run LINUX CONF?
ANS: IT can be run by root by any of the following interfaces--
1.command line
2.character based
3.xwindow based
4.web based
to enable it rootconfig/networking/misc/linuxnetworkacc
Q.What is use of KDE?
Ans: it is k desktop environment.
it is used to manage users and groups in LINUX SYSTEM.
Q.what are options used with chgrp?
ANs:IT is used to change group ownership for a file or directory.
option -r changes group ownership of files and directories recursively under a particular directory
-f it suppresses most of the error messages for instance if the filename that you specify doesnot exist
-v it stands for verbose .this displays status of all files processed.
Q,what are options used with su?
Ans : - makes a new shell created as users login shell
This reset all the environment variables except TERM,HOME,SHELL
-m or -p- it preserves the environment variable
It doesnot reset the values of environment variable the HOME,USER,LOGINNAME,SHELLS
-S(SHELL NAME) IT SPECIFIES SHELL TO BE USED BY NEW USER
-C(COMMAND) IT SPECIFIES COMMANDS TO BE RUN ON NEW SHELL
Q.How to know whether printer daemon is running or not?
Ans lpc status
Q.what are components of print services in LINUX?
Ans:1.the print device files(/dev file)
2.the spooler(by lpd command)
3.print queue'(by lpq command)
4.the printer capablity etc/printcap database
Q.what is spooling?
Ans:Spooling is the process by which print jobs are rendered to a disk based file that is understood by the printer and sent for printing
It is carried out by lpd(lline printer daemon)
The spool file are store at/var/spool/lpd
Q.Suppose two printer lp and lp0 are connected through server Message block (SMB) service?HOw to arrange for the directory specification?
Ans::sd--- specifies spool directory
:mx-----specifies maximum filesize 0 index unlimited
:sh---specifies printer to suppress the printing of page header
:if---Specifies name of input filter
:at---specifies name of accounting file
Q.What is a taper?
Ans:IT is a tapedrive backup utility.
IT is used to maintain compressed or uncompressed archive on tapes or removable media
Taper -t devicetype option device
l-harddisk
i-ide tape drive
s-scsi tape drive
m-removable floppy disk
z-floppy tape drive.
Q What is use of rpm?
Ans1.Installing
2.upgrading
3.uninstalling
4.Querying
5 .verifying
i386 means architecture of package
rpm -option package file
i=install
v=verify
h=print hashmark
u=upgrade
f=upgrade if older version exist
q=used to query on packages
e=uninstall
Q.Suppose you come across a file that you donot recognise and would like to find out which package owns it .How would you do ?
Ans: rpm -qf/usr/bin/ubj
ubj-12.4.14
Q.SUppose you accidentally deleted somefile but are not very sure what you have deleted .If you want to verify what you have deleted then what step should you take?
Ans rpm-Va
Q.How to obtain more information about a package?
Ans:rpm -qip eject 2.0
Q.What are the 3 modes of cpio facility?
Ans:copy out-copy files into archive
copy in -extracts and list files from an archive
copy pass-copy files from one directory to another.
Q What is the disadvantage of dump facility?
Ans:It makes the backup program specific to only one filesystem.
Q WHat are backup tools?
Ans in redhat it is tar,cpio and dump
Utilities used are BRU 200O AND TAPER
Q What precaution should we take to run backup?
Ans:Run the system as single user
by #init s
Q. how to create and extract tar files?
Ans: tar -cvf name ========creates files with file name as name
tar -xvf name=============extracts files with filename as name
x=extract file
t=display list
a=concatenates tar file
Q.what are the raid levels supported for LINUX ?
Ans:Raid 0 ,1 and 5
Q.What is command to mount the usb device?
Ans:mount -t /dev/sda1/mnt/usb
t is used to specify the type of filesystem that is present on the diskette.
/dev/st0 method of access is sequential
Q.How to remove print job from the print queue?
Ans:by lprm command
Q.What is use of rlpr?
Ans:It is used to send a printjob directly to a queue on a remote machine without configuring the printer on local machine.
Q How to print files to specified printer.?
Ans:lpr
Q What is the command for formatting large text files in linux for printing?
Ans: pr
QHow to specify a printer on which output is to be printed?
ANs: lpr command with -p option
Q.What are types of printers that can be configured in LINUx?
Ans:1. local printer connected to linux server
2.Remote unix/linux(lpd) printer .A printer that is physically connected to a unix machine
3.Window 95/Windows nt (smb printer)
4.NOvell Network(NCP) printer
Q.what is use of Lpc?
Ans:Lpc enable--enable the printer to accept new jobs
Lpc status---check status of printer daemon and queue
Q What are characterestics of NFS?
ANs:1.It enable the sharing of filesystem over a network
2.NFS follow the client server architecture in which the server is the machine that shares its filesystem and the clients are the hosts that access the shared system.
Q.How do you share resources in a Novell Netware and linux?
ANs:using Netware core protocol(NCP)
Q.What are the daemon used in case of NFS?
Ans:1.Portmapper
2.nfsd
3.mountd
Portmapper manages remote procedure call(RPC)
portmap runs as a server and converts RPC program numbers into defense advanced research Project Agency protocol port numbers.
Q.How to start portmap?
Ans:/etc/rc.d/init.d/portmap start
Q.how to start NFS?
Ans:/etc/rc.d/init d /nfs start
Q.What does fstab file contain?
Ans:It contains descriptive information of the filesystem that have to be mounted automatically at boot time
Q.What is use of netconf utility?
Ans:IT is used to configure NFS graphically
Q.What is use of fsconf package?
ANs:It can be used from NFS client to mount NFS filesystem
Q.Mountd is not running What to do?
ANs Start mountd by following command
kill all -HUP /usr/sbin/rpc.mountd
Q.On NFC server the exported filesystem has been mounted after NFS was started.IN such a case the server is exporting the underlying mount point.What to do?
Ans:Stop the nfsd and restart it
The client machine also needs to unmount then remount the file system.
Q.What are the components on the Samba suite?
Ans:1.smbd-provide file and print services to SMB clients
config fle--etc/smb.conf
2.nmbd-provide name serving and browsing support
It helps in the browsing protocols which make up the Windows Network Neighbourhood view.
3.samba-shell script in /usr/sbin directory
It is used to stop and start samba smbd and nmbd deamons
4.smbclient-The utility is used to access SMB shares on window machines.
5.nmblookup-allows NETBIOS name queries to be made from Linux machine
#nmb lookup steve-ird
6.testparm -checks smb.conf file for errors
7.lmhosts-It is a samba file for NETBIOS name to IT address mapping
Q.What are the sections of /etc/smb.conf file?
Ans 1.global section
all the parameters defined here act as defaults for the sections that do not specifically define those parameters
2.homes section
This section allows a remote user to access only his/her own HOME directory on the LINUX mACHINE
3.THE PRINTER SECTION
Shares the printer defined in /etc/printcap file
Q.how to access Samba shares from Linux Machines?
Ans 1.smbclient command
It provides a FTP like command line interface that allows transfer of files from a share on a SMB Server
Q.smbmount command
Mount a samba server
Q.HOW to enable SWAT?
Ans 1.goto etc/services
SWAT 901/tcp--------this line should not be commented
2.Edit /etc/inetd.conf
to remove comment before following line
SWAT stream tcp ...
3.restart the inetd daemon
kill all -HUP inetd
Q.How to create and manage SAMBA shares?
Ans:1.By editing /etc/smb.conf directly by text editor
2.By using netconf utility to create SAMBA share.
3.BY using SWAT.
Q What are the subnet masks used for A,B AND C NETWORK?
Ans:A--- 255.0.0.0
B----255.255.0.0
c----255.255.255.0
Q.When the linux server is switched on how to enable dhcpd?
Ans:By ntsysv command.
Q.What is stored in dhcpd.leases file?
Ans:The Ip address leased by the DHCP server to specific clients are stored in a filenamed dhcpd.leases.
Q.What is the empty file creation command
Ans:Touch /etc/dhcpd.leases
Q how to configure DHCP for linux clients?
ANs:Type netconf/Client task /basic host information/config mode
Q.How to start dhcpd from commandline?
Ans:/sbin/dhcpd
Q.how to turn off the network?
ANs:/sbin/dhcpcd-k
Q.what are the commands used to see ip address configuration in most used systems?
Ans: WIN 95---------WINIIPCFG
WINNT---------------IPCONFIG
LINUX---------------IFCONFIG
Q.You have configured the dhcpd daemon to obtain an Ipaddress during boot time by adding IT IN THE BOOT UP SCRIPT.hOWEVER WHEN YOU BOOT YOUR MACHINE IT DOESNOT HAVE ANY IPADDRESS.HOW TO RESOLVE?
Ans: Use the -r option while starting dhcpcd daemon
/sbin/dhcpcd-r
Q.What are the types of DNS Server?
Ans: 1.primary(translates domain name to IP ADDRESS)
2.secondary(derives its data from another nameserver)
3.Master(it includes primary and secondary nameserver and participate in zone transfer(ie file transfer from primary to secondary))
4.caching(recieves the DNS request from a DNS resolver and forwards the request to another nameserver
Q.In which way can a Httpd daemon run?
Ans:1.standalone
2.inetd
Q.When is inetd used?
Ans: ONLY IN CASE---
1.Linux server is configured to run multiple services
2.When we donot want multiple copies of the daemon running
The config setting for inetd is present in file etc/inetd.conf
Q.which are the 3 configuration files for APACHE?
Ans: 1.httpd.conf--IT contains directories that control the operation of the server daemon
2.srm.conf--controls the specifications of the documents that the server provides to client
3.access.conf--This file defines the server settings that affect the type of services allowed and under what circumstances
Q.How to start Proxy server in Lynx?
Ans: Uncomment the setting part by searching the keyword
http_proxy
Q.how to start proxy server in Netscape?
ANs:EDIt/perferences/Advanced/Proxies/Manual Proxy config
Q.how to start proxy in INternet explorer?
Ans:Tools/Internet Options/connections/Lansettings/proxy server
Q.what are the different types of proxy server used?
Ans:1.Application Proxies
2.SOCKS proxies
Q.What are Application Proxy and Socks proxies?
Ans:Application proxies are those servers which handle all requests
They support user authentication
SOcks proxies are widely used as firewall socks server appears as a client to the application server the client are hidden.
Q.What are the types of firewall?
Ans:1.proxy server
2.Packet filtering firewall
proxy server blocks selected network packets
packet filtering firewall denies access to specific hosts on the Internet
Q.how to test the Apache server?
Ans:lynx local host
Q.HOw to deny access to output chain?
Ans:ipchain -P output deny
Q.How to specify the default policy for forward chain as DENY that is drop packets?
Ans:ipchain -p forward deny
Q.What are the options used mostly with ipchains?
Ans: -N --creates new chain
-x--Deletes an empty
-p--Changes policy for a built in chain
-l--lists the rules in a chain
-F--flushes the rules out of a chain
-z--zeroes the packet and byte counters on all the rule in a chain
-A--Appends a new rule to a chain
-I--Inserts a new rule at some position in a chain.
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Saturday, April 17, 2010
cts interview
==========================udddalakbanerjee(ubj)
###this is based on real life incident..and each of the dialogues are real ones that took place between ubj and the interviewer from CTS.
THE INTERVIEW WAS TAKING PLACE AFTER 7:30 AT NIGHT .My panel no was 6 .There were about 158 people shortlisted after the written test.Interview was taking place in alphabetical order so my name came at 19th in my panel and it was really late and I was growing very restless.Anyways finally the call to go in came.
INTERVIEWER,”COME IN ..”
UBJ,”GOOD AFTERNOON SIR..”
INTERVIEWER,”TAKE YOUR SEAT..”
UBJ,”SIR THIS IS A BOOK THAT I HAVE WRITTEN ..THIS CONTAINS POEMS AND SHORTSTORIES WHICH ARE TO BE PUBLISHED SOON IN A LEADING MAGAZINE IN THE WORLD.”
INTERVIEWER,”HMM..what does this J MEAN?”
UBJ,”SORRY SIR COULD NOT GET U .”
INTERVIEWER,”U HAVE WRITTEN UBJ ..YOUR NAME IS UDDALAK BANERJEE SO IT UB ..SO WHAT IS THIS J FOR?”
UBJ,”JEN X”
INTERVIEWER,”SO THEN..TELL ME SOMETHING ABOUT YOURSELF”
UBJ,”I AM A ROCKING HONEST AND SIMPLE PERSON WHO MAKES LIFE WORTH LIVING .i WRITE BECAUSE IT IS MY HOBBY AND FIND FULFILLMENT IN IT.I AM VERY DIRECT IN MY APPROACH AND I LOVE TO PAINT TOO.MY MOM AND DAD ARE IN BANKS AND I BEING THEIR ONLY SON AHD DEDICATED MY LIFE FOR COMPUTER ENGG AND WRITING.I HAVE A LOT OF FRIENDS AND FANS BOTH AND I LOVE THEM VERY MUCH.”
INTERVIEWER,”WHICH LANGUAGES DO YOU KNOW?”
UBJ,” WELL I know languages C,C++,VB.Net,Java,shell scripting etc..but I know them all in elementary levels only ..Actually if I say that I know these languages…it means that I know them to the fullest which again Is perhaps impossible because the ambit of these languages is very huge and to know every function is redundant for any one may be.It is impossible to learn any language to the fullest.”
INTERVIEWER,”DEFINE A STRUCTURE AND WRITE A CODE IN C FOR STRUCTURE”
UBJ,”Structure is a memory block that is used to store data of similar interreleated types.Code for structure would be
Struct C
{
Int I ;
Char c;
Float f;
}
To call:
From main :
Struct C a,b,c …and so on.;
A,b,c are structures of the type C
INTERVIEWER ,”TELL ME THE MAX APPLICATION U KNOW OF C?”
Ubj,”rockets can be launched using C .We can make functions and modules for the same.”
INTERVIEWER,”ILLUSTRATE”
UBJ,”the entire rocket launch sequence is based on the primitive equation p=mv and we need to go on differentiating this equation .but yes in C WE DON’T have any such differentiation function so we have to create functions separately to calculate float values of minor differences with a loop of time to minitor minor changes.Now then we have to break the whole thing into modules.There would be modules for propeller speed,module to calculate air drag and backward thrust exerted by air and also speed variation factor based on climate and then there would be distance calculation function that would calculate distance from earth.Apart from all this there would be a module on air density and temperature calculation which would take data from the sensors fitted on the body of the rocket and this function will be called ever pico second.With C being a middle level language all this possible because it interacts with hardware.
Interviewer,”So then tell me about hobbies now..if I give u a choice between programming and writing which one will u choose ?”
UBJ,”WRITING and not programming”
Interviewer,”why ?”
UBJ,”BECAUSE I am popular with this and I believe that I write well and now that I am beginning to get to people whom I have never met or seen I don’t want to leave this medium.
Interviewer ,”but !!ok leave it”(looks through the book)
Interviewer,”you write well..but will this give you enough living?”
UBJ,”I DON’T KNOW BUT YES ONE THING IS FOR SURE I LOVE IT.”
Interviewer,”what is ubj inventions?tell me something on this”
UBJ,”when I was in school I wanted to calculate rather extrapolate values of pi from mechanics using different values of constants and I tried hard and found various values and I have enumareted the values and methods used in these blogs.I have done some papers on AI too so that is again a part of ubj inventions.”
Interviewer,”ok but now tell me inventions or writing which will u prefer”
UBJ,”writing sir..it is part of documentation process .I love it.”
Interviewer,”ok then.It had been a pleasure meeting you.” (flips through the pages of the book)
Interviewer,”nice work someday u may be a great writer.”
UBj,”thank you sir”
Interviewer,”next”
==============================================================
###this is based on real life incident..and each of the dialogues are real ones that took place between ubj and the interviewer from CTS.
THE INTERVIEW WAS TAKING PLACE AFTER 7:30 AT NIGHT .My panel no was 6 .There were about 158 people shortlisted after the written test.Interview was taking place in alphabetical order so my name came at 19th in my panel and it was really late and I was growing very restless.Anyways finally the call to go in came.
INTERVIEWER,”COME IN ..”
UBJ,”GOOD AFTERNOON SIR..”
INTERVIEWER,”TAKE YOUR SEAT..”
UBJ,”SIR THIS IS A BOOK THAT I HAVE WRITTEN ..THIS CONTAINS POEMS AND SHORTSTORIES WHICH ARE TO BE PUBLISHED SOON IN A LEADING MAGAZINE IN THE WORLD.”
INTERVIEWER,”HMM..what does this J MEAN?”
UBJ,”SORRY SIR COULD NOT GET U .”
INTERVIEWER,”U HAVE WRITTEN UBJ ..YOUR NAME IS UDDALAK BANERJEE SO IT UB ..SO WHAT IS THIS J FOR?”
UBJ,”JEN X”
INTERVIEWER,”SO THEN..TELL ME SOMETHING ABOUT YOURSELF”
UBJ,”I AM A ROCKING HONEST AND SIMPLE PERSON WHO MAKES LIFE WORTH LIVING .i WRITE BECAUSE IT IS MY HOBBY AND FIND FULFILLMENT IN IT.I AM VERY DIRECT IN MY APPROACH AND I LOVE TO PAINT TOO.MY MOM AND DAD ARE IN BANKS AND I BEING THEIR ONLY SON AHD DEDICATED MY LIFE FOR COMPUTER ENGG AND WRITING.I HAVE A LOT OF FRIENDS AND FANS BOTH AND I LOVE THEM VERY MUCH.”
INTERVIEWER,”WHICH LANGUAGES DO YOU KNOW?”
UBJ,” WELL I know languages C,C++,VB.Net,Java,shell scripting etc..but I know them all in elementary levels only ..Actually if I say that I know these languages…it means that I know them to the fullest which again Is perhaps impossible because the ambit of these languages is very huge and to know every function is redundant for any one may be.It is impossible to learn any language to the fullest.”
INTERVIEWER,”DEFINE A STRUCTURE AND WRITE A CODE IN C FOR STRUCTURE”
UBJ,”Structure is a memory block that is used to store data of similar interreleated types.Code for structure would be
Struct C
{
Int I ;
Char c;
Float f;
}
To call:
From main :
Struct C a,b,c …and so on.;
A,b,c are structures of the type C
INTERVIEWER ,”TELL ME THE MAX APPLICATION U KNOW OF C?”
Ubj,”rockets can be launched using C .We can make functions and modules for the same.”
INTERVIEWER,”ILLUSTRATE”
UBJ,”the entire rocket launch sequence is based on the primitive equation p=mv and we need to go on differentiating this equation .but yes in C WE DON’T have any such differentiation function so we have to create functions separately to calculate float values of minor differences with a loop of time to minitor minor changes.Now then we have to break the whole thing into modules.There would be modules for propeller speed,module to calculate air drag and backward thrust exerted by air and also speed variation factor based on climate and then there would be distance calculation function that would calculate distance from earth.Apart from all this there would be a module on air density and temperature calculation which would take data from the sensors fitted on the body of the rocket and this function will be called ever pico second.With C being a middle level language all this possible because it interacts with hardware.
Interviewer,”So then tell me about hobbies now..if I give u a choice between programming and writing which one will u choose ?”
UBJ,”WRITING and not programming”
Interviewer,”why ?”
UBJ,”BECAUSE I am popular with this and I believe that I write well and now that I am beginning to get to people whom I have never met or seen I don’t want to leave this medium.
Interviewer ,”but !!ok leave it”(looks through the book)
Interviewer,”you write well..but will this give you enough living?”
UBJ,”I DON’T KNOW BUT YES ONE THING IS FOR SURE I LOVE IT.”
Interviewer,”what is ubj inventions?tell me something on this”
UBJ,”when I was in school I wanted to calculate rather extrapolate values of pi from mechanics using different values of constants and I tried hard and found various values and I have enumareted the values and methods used in these blogs.I have done some papers on AI too so that is again a part of ubj inventions.”
Interviewer,”ok but now tell me inventions or writing which will u prefer”
UBJ,”writing sir..it is part of documentation process .I love it.”
Interviewer,”ok then.It had been a pleasure meeting you.” (flips through the pages of the book)
Interviewer,”nice work someday u may be a great writer.”
UBj,”thank you sir”
Interviewer,”next”
==============================================================
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
UBJ ‘S SUPER INTERVIEW CRACK QUESTIONS
THE FOLLOWING SETS OF QUESTIONS WHICH ARE GIVEN BELOW WILL HELP YOU TO CLEAR ANY INTERVIEW OF ANY TECHNICAL LEVEL.APART FROM THIS MAKE SURE THAT U HAVE ALREADY READ THE TWO INTERVIEW QUESTIONS I HAD ALREADY UPLOADED OF PERSISTENT AND BIRLASOFT .
============================================UDDALAK BANERJEE(UBJ),CSE ,NIT RAIPUR .
Q.WHAT IS A RESULTSET ?
ANS:IT IS AN INTERFACE IN JAVA which is used to store data on execution of query.
Q.What is white box testing?
Ans:IT is close examination of procedural detail.
Q.what is alpha testing?
Ans: IT is conducted at developer’s site by end users.
It is conducted in controlled environment.
Q.What is beta testing?
Ans:IT is conducted at enduser sites.
Developer is not present here.
Q.what is blackbox testing?
Ans:Examines some fundamental aspects of a system with little regard for the internal logical software of the software.
Q what are DiskScheduling methods?
Ans: FCFS
SSTF
SCAN
LOOK
Q.what is critical section problem?
Ans: TO design a protocol that the processes can use to cooperate.
Critical section is segment of code in which process may be changing common variables,updating tables etc
QWhat is the solution to critical section problem?
Ans: 1.Mutual Exclusion
2.Progress Requirement
3.Bounded Waiting
Q.write PreOrder,postoder and inorder Traversal of the following tree.
A,B,C,D,E ,F,G,H,I
ANS: PREORDER: A B D G C E H I F
POSTORDER: G D B H I E F C A
INORDER: D G B A H E I C F
Q what are the orders of traversal ?
Ans: Post Order: Left Right Root
INorder: Left Root Right
Preorder: Root left right
Q.What is ALOHA?
ANS: IT is earliest random access method(in early 1970s)
It is of two types-
1.Pure ALOHA
2.Slotted ALOHA
Q.what is thoroughput for pure ALOHA?
Ans:S=g* e^-2g
Where
Smax=0.184
When G=0.5
Vulnerable time=2*Tfr
Q.what is throughput for slotted ALOHA?
Ans: S=g*e^-g
Smax=0.368
G=1
Vulnerable time=Tfr
Q.what is SNR?
Ans: It is called Signal to Noise Ratio
Snr= AVERAGE SIGNAL POWER/AVERAGE NOISE POWER
Q what are networking commands in LINUX?
Ans: LYNX --- browse from ordinary terminal
DU---- DISK USAGE OF FILES AND DIRECTORIES IN FILENAME
WHO AM I – RETURN USERNAME
TALK USERNAME--- LETS CONVERSATION WITH OTHER USER
WRITE USERNAME--- EXCHANGE ONLINE MESSAGES
FF---- FINDS FILENAME ON SYSTEM
GREP STRING,FILENAME----- LOOKS FOR STRING IN FILENAME
RLOGIN HOSTNAME--- CONNECTS TO REMOTE HOST
Q.WHAT ARE Java Server Faces specification?
Ans: Packages are:
Javax.faces
Javax.faces.convert------- interfaces defining converter
Javax.faces.event---------interfaces define event file
Javax.faces.webapp------classes required for integration of java server file.
Q.what is full form of ICAD?
Ans: Internet Content Adapter Protocol.
Q.Write a simple if loop in linux?
Ans: echo $ ubj=:uddalak banerjee”
If [ -z “$ ubj”]
Myname= ‘ who am I ‘
Fi
Q. What is Unit testing?
ANs :IT focuses verification effort on the smallest unit of software design—the software components of modules.
Boundary testing is one of the most important unit testing tasks
Unit tests should uncover errors such as the following :
1.comparison of different datatypes
2.incorrect logical operator or precedence
3.incorrect comparison of variables
4.improper loop termination.
Q. What are the disadvantages of water fall model?
ANs: 1.Real Life Projects donot follow sequential flow
2.Customer has to state all requirements first
Q.what are the advantages of spiral model?
ANs: 1.realistic approach
2.Uses prototypes as risk reduction.
Q.what is data transformation?
ANs: Data is transformed into other forms appropriate for mining.
Data transformation involves—
1.smoothing
2.Aggregation
3.Generalization
4.Normalization
5.Attribute Construction
Q What are different Datamodels?
ANs 1.semistructured
2.Object Oriented
3. object relational
4.ER
Q.what are types of Databases?
Ans 1.temporal
2.Sequence Database
3.time series Database
4.Spatial Database
5.Spatial Temporal Database
6.Text Database
7.Multimedia Database
Q. What are techniques used to remove noise?
Ans : 1.Binning
2.Regression
3.Clustering
Q.what is Build?
ANs: Process of converting source code into executable code given to testing
Q.what is change control?
Ans:Change Management Process involves technical change analysis .Cost Benefit analysis and change tracking.
Q.What are key factors considered by a board in making decisions on change?
ANs: 1.size of change
2. complexity of change
3. related systems
4.data when it is needed
5.impact on current and subsequent work
6.cost
7.possible alternatives
Q.what is SCM STANDARD?
ANS: ANSI IEEE 823-1983-1042-1028
Q.What Is demand paging?
ANs: O S copies a diskpage into physical memory only if an attempt is made to access it ( that is if page fault occurs)
Q.WHAT ARE THE DISADVANTAGES OF DEMAND PAGING?
ANS: 1.MEMORY MANAGEMENT with page replacement algorithm becames more challenging
2.Individual programs face extra latency
Q. what is a dispatcher?
Ans:1.Long term scheduler
Decides which job to be admitted to ready queue
2. Midterm scheduler
Temporarily removes processes from main memory and places them on secondary memory
3. short term scheduler
Decides which of the ready in memory processes are to be executed.
Q.What are the functions of dispatcher?
Ans: 1.switching context
2. switching to user mode
3.Jumping to the proper location in the user program to restart the program.
Q.What are conditions necessary for deadlock?
Ans: 1.Mutual Exclusion
2.Non Preemption
3.Circular Wait
Q.what are the methods of recovery from deadlock?
ANs: 1.process Termination (it involves either 1. Abort all processes or 2. Abort one process at a time until deadlock cycle is eliminated)
2. resourse Preemption( issues to be addressed include 1.selecting the victim 2.rollback 3. Starvation)
Q. How is a Java file executed ?
Ans: step 1. Static methods are searched
Step 2. Java Vitual Machine uses a class loader to find binary representation of class
Step3 .once the class file is produced The class are linked before it is initialized.
Step 4. Linking
Q.what are the steps involved in linking?
Ans : 1.verification(check loaded representation of class is well formed from symbol table )
2.Preparation(involves allocation of static storage)
3.Resolution (process of checking symbolic references from the test ot other classes)
Q Name an error that is caused during Linking?
Ans Out of memory error
Q what are differences between new and malloc?
ANs: malloc requires special type casting which new does not need.
New required delete to free memory and incase of malloc freeing of memory is done by free keyword.
Q.what is task of formal technical review?
Ans: it focuses on technical correctness of config object that has been modified.
IT also reviews the SCI to determines consistency with other SCI s .
Q.what are steps to configure TOMCAT server?
Ans: step 1.Install Java(set path after running setup)
Step 2.Unzip Tomcat( port change )
Step 3. Download Eclipse(or anyother editor and install it )
Step 4. Test Server.
THE FOLLOWING SETS OF QUESTIONS WHICH ARE GIVEN BELOW WILL HELP YOU TO CLEAR ANY INTERVIEW OF ANY TECHNICAL LEVEL.APART FROM THIS MAKE SURE THAT U HAVE ALREADY READ THE TWO INTERVIEW QUESTIONS I HAD ALREADY UPLOADED OF PERSISTENT AND BIRLASOFT .
============================================UDDALAK BANERJEE(UBJ),CSE ,NIT RAIPUR .
Q.WHAT IS A RESULTSET ?
ANS:IT IS AN INTERFACE IN JAVA which is used to store data on execution of query.
Q.What is white box testing?
Ans:IT is close examination of procedural detail.
Q.what is alpha testing?
Ans: IT is conducted at developer’s site by end users.
It is conducted in controlled environment.
Q.What is beta testing?
Ans:IT is conducted at enduser sites.
Developer is not present here.
Q.what is blackbox testing?
Ans:Examines some fundamental aspects of a system with little regard for the internal logical software of the software.
Q what are DiskScheduling methods?
Ans: FCFS
SSTF
SCAN
LOOK
Q.what is critical section problem?
Ans: TO design a protocol that the processes can use to cooperate.
Critical section is segment of code in which process may be changing common variables,updating tables etc
QWhat is the solution to critical section problem?
Ans: 1.Mutual Exclusion
2.Progress Requirement
3.Bounded Waiting
Q.write PreOrder,postoder and inorder Traversal of the following tree.
A,B,C,D,E ,F,G,H,I
ANS: PREORDER: A B D G C E H I F
POSTORDER: G D B H I E F C A
INORDER: D G B A H E I C F
Q what are the orders of traversal ?
Ans: Post Order: Left Right Root
INorder: Left Root Right
Preorder: Root left right
Q.What is ALOHA?
ANS: IT is earliest random access method(in early 1970s)
It is of two types-
1.Pure ALOHA
2.Slotted ALOHA
Q.what is thoroughput for pure ALOHA?
Ans:S=g* e^-2g
Where
Smax=0.184
When G=0.5
Vulnerable time=2*Tfr
Q.what is throughput for slotted ALOHA?
Ans: S=g*e^-g
Smax=0.368
G=1
Vulnerable time=Tfr
Q.what is SNR?
Ans: It is called Signal to Noise Ratio
Snr= AVERAGE SIGNAL POWER/AVERAGE NOISE POWER
Q what are networking commands in LINUX?
Ans: LYNX --- browse from ordinary terminal
DU---- DISK USAGE OF FILES AND DIRECTORIES IN FILENAME
WHO AM I – RETURN USERNAME
TALK USERNAME--- LETS CONVERSATION WITH OTHER USER
WRITE USERNAME--- EXCHANGE ONLINE MESSAGES
FF---- FINDS FILENAME ON SYSTEM
GREP STRING,FILENAME----- LOOKS FOR STRING IN FILENAME
RLOGIN HOSTNAME--- CONNECTS TO REMOTE HOST
Q.WHAT ARE Java Server Faces specification?
Ans: Packages are:
Javax.faces
Javax.faces.convert------- interfaces defining converter
Javax.faces.event---------interfaces define event file
Javax.faces.webapp------classes required for integration of java server file.
Q.what is full form of ICAD?
Ans: Internet Content Adapter Protocol.
Q.Write a simple if loop in linux?
Ans: echo $ ubj=:uddalak banerjee”
If [ -z “$ ubj”]
Myname= ‘ who am I ‘
Fi
Q. What is Unit testing?
ANs :IT focuses verification effort on the smallest unit of software design—the software components of modules.
Boundary testing is one of the most important unit testing tasks
Unit tests should uncover errors such as the following :
1.comparison of different datatypes
2.incorrect logical operator or precedence
3.incorrect comparison of variables
4.improper loop termination.
Q. What are the disadvantages of water fall model?
ANs: 1.Real Life Projects donot follow sequential flow
2.Customer has to state all requirements first
Q.what are the advantages of spiral model?
ANs: 1.realistic approach
2.Uses prototypes as risk reduction.
Q.what is data transformation?
ANs: Data is transformed into other forms appropriate for mining.
Data transformation involves—
1.smoothing
2.Aggregation
3.Generalization
4.Normalization
5.Attribute Construction
Q What are different Datamodels?
ANs 1.semistructured
2.Object Oriented
3. object relational
4.ER
Q.what are types of Databases?
Ans 1.temporal
2.Sequence Database
3.time series Database
4.Spatial Database
5.Spatial Temporal Database
6.Text Database
7.Multimedia Database
Q. What are techniques used to remove noise?
Ans : 1.Binning
2.Regression
3.Clustering
Q.what is Build?
ANs: Process of converting source code into executable code given to testing
Q.what is change control?
Ans:Change Management Process involves technical change analysis .Cost Benefit analysis and change tracking.
Q.What are key factors considered by a board in making decisions on change?
ANs: 1.size of change
2. complexity of change
3. related systems
4.data when it is needed
5.impact on current and subsequent work
6.cost
7.possible alternatives
Q.what is SCM STANDARD?
ANS: ANSI IEEE 823-1983-1042-1028
Q.What Is demand paging?
ANs: O S copies a diskpage into physical memory only if an attempt is made to access it ( that is if page fault occurs)
Q.WHAT ARE THE DISADVANTAGES OF DEMAND PAGING?
ANS: 1.MEMORY MANAGEMENT with page replacement algorithm becames more challenging
2.Individual programs face extra latency
Q. what is a dispatcher?
Ans:1.Long term scheduler
Decides which job to be admitted to ready queue
2. Midterm scheduler
Temporarily removes processes from main memory and places them on secondary memory
3. short term scheduler
Decides which of the ready in memory processes are to be executed.
Q.What are the functions of dispatcher?
Ans: 1.switching context
2. switching to user mode
3.Jumping to the proper location in the user program to restart the program.
Q.What are conditions necessary for deadlock?
Ans: 1.Mutual Exclusion
2.Non Preemption
3.Circular Wait
Q.what are the methods of recovery from deadlock?
ANs: 1.process Termination (it involves either 1. Abort all processes or 2. Abort one process at a time until deadlock cycle is eliminated)
2. resourse Preemption( issues to be addressed include 1.selecting the victim 2.rollback 3. Starvation)
Q. How is a Java file executed ?
Ans: step 1. Static methods are searched
Step 2. Java Vitual Machine uses a class loader to find binary representation of class
Step3 .once the class file is produced The class are linked before it is initialized.
Step 4. Linking
Q.what are the steps involved in linking?
Ans : 1.verification(check loaded representation of class is well formed from symbol table )
2.Preparation(involves allocation of static storage)
3.Resolution (process of checking symbolic references from the test ot other classes)
Q Name an error that is caused during Linking?
Ans Out of memory error
Q what are differences between new and malloc?
ANs: malloc requires special type casting which new does not need.
New required delete to free memory and incase of malloc freeing of memory is done by free keyword.
Q.what is task of formal technical review?
Ans: it focuses on technical correctness of config object that has been modified.
IT also reviews the SCI to determines consistency with other SCI s .
Q.what are steps to configure TOMCAT server?
Ans: step 1.Install Java(set path after running setup)
Step 2.Unzip Tomcat( port change )
Step 3. Download Eclipse(or anyother editor and install it )
Step 4. Test Server.
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Monday, April 12, 2010
PERSISTENT INTERVIEW
THIS IS AGAIN A DIRECT COMMENTARY VERSION OF THE INTERVIEW WHICH I TOOK FOR PERSISTENT.ALL JUNIORS OR READERS WHO WILL BE READING THIS DOCUMENT WOULD I HOPE STAND TO GAIN FROM THIS EXPERIENCE .I IN MY TIME DID NOT HAVE ANY DIRECT WORD BY WORD UPDATE FROM ANY OF MY SENIORS SO ..I AM UPLOADING FOR ALL OF YOU ..TO HAVE A DIRECT LOOK AT HOW THE INTERVIEW WAS CONDUCTED AND WHAT THE HRS WANT TO KNOW.AND SINCE NOTHING HAS BEEN CHANGED YOU WOULD GET TO FORM YOUR OPINION AND ALSO HELP YOU MENTALLY TO PREPARE FOR THE TEST.ALL THE BEST.
Persistent interview
Persistent interview
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Sunday, April 11, 2010
CS GATE 2006 QUESTION PAPER
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
GATE 2008 QUESTION PAPER
IT WAS AGAIN HARD TO GET AND INVOLVED A LOT OF SEARCH..BUT THEN NOW AS I HAVE IT YOU DONT NEED TO PANIC...JUST SIT DOWN AND DIG INTO THE PAPER..PRACTICE..
CS2008
CS2008
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
GATE 2007 QUESTION PAPER
THIS WILL PROVIDE A VARIETY IN TERMS OF PRACTICE.THE QUESTION PAPERS FROM 2000-2007 WAS HARD TO GET BUT FINALLY PROCURED THEM.AND NOW I AM UPLOADING THEM...I HOPE THIS WILL PROVIDE ENOUGH OF PRACTICE AND NEGATE THE NEED FOR ANY FURTHER TUTORIALS.
CS-2007
CS-2007
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
GATE 2010 QUESTION PAPER
THIS TIME THERE WAS APTI..AND THOSE WHO DID ATTEMPT A LOT ALEAST AROUND 60 MARKS ATLEAST DID WELL UNLIKE THAT IN 2009 WHEN THE QUESTION COMPARATIVELY WAS TOUGHER .
CS-GATE-2010
CS-GATE-2010
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
STATISTICS OF GATE
TOTAL NO OF STUDENTS THAT TOOK GATE IN COMPUTER SCIENCE AND ENGG WAS 107000 (1 LAKH 1O THOUSAND APPROX)
UNLIKE OTHER BRANCHES THE TOTAL NUMBER OF STUDENTS APPEARING GATE IN COMPUTERSCIENCE IS DOUBLE AND MORE BECAUSE COMPUTERSCIENCE AND IT ARE TWO FULL FLEDGED BRANCHES WHO TAKE GATE UNDER THE SAME BANNER.iT AND CS ARE ALSO TWO BRANCHES WHICH ARE TAUGHT IN ALMOST ALL ENGINEERING COLLEGES OF INDIA .AT PRESENT THE TOTAL NUMBER OF ENGINEERING COLLEGES IN INDIA IS ABOUT 6700 AND TOTAL NUMBER OF MBA COLLEGES STAND 3300 APPROX.AND THE NUMBER OF COLLEGES IS INCREASING AT A HEALTHY RATE EACH YEAR.
FOR TECHNICAL TRAINING THE PLACES LIKE BANGALORE AND HYDRABAD ARE MOST SUITED BECAUSE OF THE MYRIAD NUMBER OF COLLEGES THAT CROP UP FROM ALL CORNERS OF HYDRABAD AND BANGALORE AND PRESENCE OF HUGE NUMBER OF TRAINING INSTITUTES IN HYDRABAD AND BANGALORE.INCASE ANY JUNIOR READING THIS POST PLEASE OPT FOR YOUR SUMMER TRAINING IN HYDRABAD OR BANGALORE BECAUSE THEY ARE THE PLACES WHICH ARE A HUB OF TECHNOLOGY AND YOU CAN REALLY REALLY LEARN HERE BECAUSE OF THE LARGE NUMBER OF COACHING INSTITUTE WHICH ABOUND HERE SOMEWHAT LIKE KOTA WHERE PEOPLE THRONG FOR IIT JEE PREPARATION.
SO PLEASE MAKE SMALL GROUPS AMOUNG YOURSELVES AND DONT FEEL SHY OR LAZY TO GO THERE FOR TRAINING .IT WOULD PROVE REALLY BENEFICIAL TO YOU IN THE LONG RUN.
UNLIKE OTHER BRANCHES THE TOTAL NUMBER OF STUDENTS APPEARING GATE IN COMPUTERSCIENCE IS DOUBLE AND MORE BECAUSE COMPUTERSCIENCE AND IT ARE TWO FULL FLEDGED BRANCHES WHO TAKE GATE UNDER THE SAME BANNER.iT AND CS ARE ALSO TWO BRANCHES WHICH ARE TAUGHT IN ALMOST ALL ENGINEERING COLLEGES OF INDIA .AT PRESENT THE TOTAL NUMBER OF ENGINEERING COLLEGES IN INDIA IS ABOUT 6700 AND TOTAL NUMBER OF MBA COLLEGES STAND 3300 APPROX.AND THE NUMBER OF COLLEGES IS INCREASING AT A HEALTHY RATE EACH YEAR.
FOR TECHNICAL TRAINING THE PLACES LIKE BANGALORE AND HYDRABAD ARE MOST SUITED BECAUSE OF THE MYRIAD NUMBER OF COLLEGES THAT CROP UP FROM ALL CORNERS OF HYDRABAD AND BANGALORE AND PRESENCE OF HUGE NUMBER OF TRAINING INSTITUTES IN HYDRABAD AND BANGALORE.INCASE ANY JUNIOR READING THIS POST PLEASE OPT FOR YOUR SUMMER TRAINING IN HYDRABAD OR BANGALORE BECAUSE THEY ARE THE PLACES WHICH ARE A HUB OF TECHNOLOGY AND YOU CAN REALLY REALLY LEARN HERE BECAUSE OF THE LARGE NUMBER OF COACHING INSTITUTE WHICH ABOUND HERE SOMEWHAT LIKE KOTA WHERE PEOPLE THRONG FOR IIT JEE PREPARATION.
SO PLEASE MAKE SMALL GROUPS AMOUNG YOURSELVES AND DONT FEEL SHY OR LAZY TO GO THERE FOR TRAINING .IT WOULD PROVE REALLY BENEFICIAL TO YOU IN THE LONG RUN.
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
INTERVIEW AT BIRLA SOFT
IT IS A REAL LIFE EXPERIENCE BASED COMMENTRY MODE INTERVIEW.THIS SHOULD HELP ALL JUNIORS AND VIEWERS WHO ARE PREPARING FOR BIRLASOFT OR EQUIVALENT COMPLETELY TECHNICAL LOW RECRUITING CS COMPANIES.
INTERVIEW AT BIRLA SOFT
INTERVIEW AT BIRLA SOFT
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
GATE QUESTION PAPER FOR PRACTICE ..
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
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WATCH OUT THE FOLLOWING VEDIO AND YOU WOULD KNOW HOW.... VEDIO
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
Gate Question Paper 2009
Life is a differentiation of dreams which is in terms of education multiplied with effort and innovation
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