101-500 Online Practice Questions and Answers

CORRECT TEXT

Which world-writable directory should be placed on a separate partition in order to prevent users from being able to fill up the / filesystem? (Specify the full path to the directory.)

CORRECT TEXT

Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)

Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct answers.)

A. 0

B. 1

C. 3

D. 5

E. 6

You are having some trouble with a disk partition and you need to do maintenance on this partition but your users home directories are on it and several are logged in. Which command would disconnect the users and allow you to safely execute maintenance tasks?

A. telinit 1

B. shutdown -r now

C. killall -9 inetd

D. /bin/netstop --maint

E. /etc/rc.d/init.d/network stop

What is the purpose of the Bash built-in export command?

A. It allows disks to be mounted remotely.

B. It runs a command as a process in a subshell.

C. It makes the command history available to subshells.

D. It sets up environment variables for applications.

E. It shares NFS partitions for use by other systems on the network.

Which of the following commands can be used to search for the executable file foo when it has been placed in a directory not included in $PATH?

A. apropos

B. which

C. find

D. query

E. whereis

Which of the following commands updates the already installed RPM package rpmname?

A. rpm --update rpmname

B. rpm rpmname

C. rpm rpmname

D. rpm --force rpmname

E. rpm rpmname

How is a symbolic link called bar.conf pointing to foo.conf created?

A. ln foo.conf bar.conf

B. ln foo.conf bar.conf

C. ln bar.conf foo.conf

D. ln bar.conffoo.conf

When is the content of the kernel ring buffer reset? (Choose two.)

A. When the ring buffer is explicitly reset using the command dmesg --clear

B. When the ring buffer is read using dmesg without any additional parameters

C. When a configurable amount of time, 15 minutes by default, has passed

D. When the kernel loads a previously unloaded kernel module

E. When the system is shut down or rebooted

What is the first program the Linux kernel starts at boot time when using System V init?

A. /lib/init.so

B. /proc/sys/kernel/init

C. /etc/rc.d/rcinit

D. /sbin/init

E. /boot/init