050-720 Online Practice Questions and Answers

The /backup/snapshot was changed to the /backup/backup_monday.tgz archive. Which command will now write new or modified files below /home?

A. tar -czf -g /backup/snapshot /backup/backup_monday.tgz /home

B. tar -tz -g /backup/snapshot -f /backup/backup_monday.tgz /home

C. tar -cz -g /backup/snapshot -f /backup/backup_monday.tgz /home

D. tar -cz -newer /backup/snapshot -f /backup/backup_monday.tgz /home

Which parts can be combined in the syslog-ng configuration file (/etc/syslog-ng/syslog-ng.conf) to specify what information is logged? (Choose 3.)

A. Alerts

B. Users

C. Filters

D. Sources

E. Log Paths

F. Destinations

G. Date and Time

In a terminal window, which command shows you the groups you are a member of?

A. id

B. gid

C. who

D. whoami

You want to create the new user account tux with the password penguin (password hash: TvqBFhQWgeSho) and a default home directory. Which command can be used to create the account with the above parameters?

A. useradd -m -p "penguin" tux

B. echo penguin | useradd -m -p - tux

C. useradd -m -p "TvqBFhQWgeSho" tux

D. echo -e "penguin\npenguin" | passwd tux ; useradd -m tux

Where can you set global shell environment variables for all users independent of their shell?

A. /etc/profile

B. /etc/profile.all

C. /etc/bash.local

D. /etc/bash.bashrc

Which key combination can you use to stop a process that runs in the foreground?

A. Ctrl +X

B. Ctrl +Z

C. Ctrl + Alt + X

D. Ctrl + Backspace

Within less, how do you search for a string downwards from where the cursor is positioned?

A. \string

B. ?string

C. /string

D. =string

Which command displays the value stored in the $MYVAR variable?

A. less MYVAR

B. cat $MYVAR

C. echo MYVAR

D. echo $MYVAR

Suppose you change from your current runlevel 5 to the new runlevel 3. Which statement is correct?

A. Nothing will happen at all.

B. If there is a K* link for a certain service in /etc/init.d/rc5.d/ but no corresponding S* link I /etc/init.d/rc3.d/ , nothing will happen.

C. If there is no K* link for a certain service in /etc/init.d/rc5.d/ but there is an S* link in /etc/init.d/rc3.d/, the service is started.

D. If there is a K* link for a certain service in /etc/init.d/rc5.d/ and there is an S* link in /etc/init.d/rc3.d/, the service is stopped and started again.

Which command displays cpu and input/output statistics for devices and partitions?

A. siga

B. sitar

C. fdisk

D. lspci

E. iostat

F. hwinfo

G. hdparm