Chmod 755 file a) Everyone can read and write. Only owner can execute. b) Nobody can read and execute. Only owner can write. c) Everyone can read and execute. Only owner can write. Everyone can read and execute. The Linux kernel is mostly written in... a. Basic b. C c. Fortran d. C++ The sticky bit is set for a directory... a. so files in that directory may only be unlinked or renamed by root b. so files in that directory may only be unlinked or renamed by their owner...

Which command is used for activate a LVM? a) lvchange –ay logical volume name b) lvchange –an logical volume name c) lvchange –a logical volume name d) lvchange –av logical volume name The sticky bit is set for a directory... a) so files in that directory may only be unlinked or renamed by root b) so files in that directory may only be unlinked or renamed by their owner c) so files in that directory may only be unlinked or renamed by root or their owner d) so files in that directory are safe What is the ssh port no? a) 20 b) 21....

Which of the following services works to connect Linux to a Microsoft Windows–based network? A. NFS B. SMB C. DNS D. Windows for Workgroups..... Which of the following commands are associated with a Red Hat Linux firewall configuration utility? A. lokwall B. lokkit C. firewall-config D. firewall-lokkit.... Which command will show the process CPU and Memory Utilization? a) ps –mc b) ps –auxw c) ps -ef d) ps – fd....

Which of the following commands returns the actual number of times user mj is logged into your Linux computer? A. wc -l B. who | grep mj C. who | wc -l D. who | grep mj | wc -l..... You’re maintaining a large queue of print jobs on your network, and you need some job numbers to make sure the engineers get highest priority on the printer.Which of the following commands lists print job numbers? A. lpr -l B. lpq -l C. lprm -l D. lpd.... Which of the following commands would you use to add the /usr/sbin directory to your PATH? A. $PATH=$PATH:/usr/sbin B. $PATH=PATH:/usr/sbin C. PATH=$PATH:/sbin D. PATH=$PATH:/usr/s....

Which file defines all users on your system? a./etc/passwd b./etc/users c./etc/shadow Which is the command to ON the service on run level 2 &4 A. chkconfig --list 24 on B. chdconf -level 24 ON C. chkconfig *level 24 on D. chkconfig --level 24 on 1. D. chkconfig --level 24 on..... One of the administrators has accidentally deleted the /etc/passwd file......

Network tool used to check the cable connectivity to N/W card? a. ping b. Netstat c. mii-tool How to see the installed packages in the system? a.rpm –qa|more b.rpm –ivh c. rpm –e Utility used to show the disk spaced used in the current working directory? a.df –h b.diskfree c.du.... Configuration file for auto mounting file systems? a./etc/inittab b./etc/fstab c./etc/vtab....

Which is the default boot loader of Linuz ? Lilo Vmlinuz Grub None of the above... In Linux secondary slave hard drive is identified by had hdc hdb hdd.... SCSI device is identified by sad dad sda sc... Linux support max ______ primary partition 1 4.... Durind installation you may use bash shell (command prompt) which key you press? Alt+F1 Alt+F2 Alt+F3 Alt+F4...

Which file is used for setting login message ? /etc/login /etc/startup /etc/motd None To see how many partition or dir is exported by NFS server which command is used ? show -e remote server fdisk -l remote server showmount -e None... Which command is used to see datalink layer address ? ifconfig ipconfig config.....

Which command is used to conftoll tape drive ? sd mt tp tap.... Which command is used to creat ext2| ext3 file system on tap ? cpio tar dump dumpfs... Which command is used to start graphics in runlevel3 ? kdmconfig system_config_display startx cmdconfig....

You issue the command jobs and receive the following output: [1]- Stopped (tty output) pine [2]+ Stopped (tty output) MyScript How would you bring the MyScript process to the foreground? A. fg %2 B. ctrl-c C. fg MyScript D. ctrl-z On a system with separate partitions for /, /usr, /var, /tmp which filesystem[s] can safely be mounted read-only? A. /var, /usr B. /var C. /usr, /, /tmp D. /usr E. /tmp What file will show you the IRQs being used by different hardware devices?....