050-720 Online Practice Questions and Answers

You want to install the xyz-software-1.2.3-5.i586.rpm package, but only if a previous version is already installed. Which command will do this?

A. rpm -ivh xyz-software-1.2.3-5.i586.rpm

B. rpm -evh xyz-software-1.2.3-5.i586.rpm

C. rpm -Fvh xyz-software-1.2.3-5.i586.rpm

D. rpm -Uvh xyz-software-1.2.3-5.i586.rpm

You entered your quota information in /etc/fstab. What do you have to do next?

A. Generate a quota report.

B. Initialize the quota system.

C. Configure limits for users and groups.

D. Remount the file system for the quotas to be defined.

You would like to run command2 only if command1 did not complete successfully. Which command accomplishes this task?

A. command1 ;; command2

B. command1 || command2

C. command1 >> command2

D. command1 andand command2

Which are journaling file systems? (Choose 3.)

A. XFS

B. ext2

C. ext3

D. VFAT

E. minix

F. VFAT32

G. ReiserFS

What action does the jobs command perform?

A. Lists all scheduled cron jobs

B. Lists all mail items in the mail queue

C. Lists the content of the shell's job control

D. Lists all print jobs in the print queue.

You wonder which installed RPM package the /etc/exports file belongs to. Which command will give you the desired information?

A. rpm -f /etc/exports

B. rpm -qf /etc/exports

C. rpm -ql /etc/exports

D. rpm --provides /etc/exports

Which statement about a differential backup is correct?

A. The use of differential backups is limited to backups on tape roboters.

B. To restore a differential backup, you need the last differential backup only.

C. To restore a differential backup, you need the last full backup and the last differential backup that was made since the last full backup.

D. The amount of data that needs to be backed up with each differential backup depends only on the amount of data changed since the last differential backup.

You are viewing the manual page of crontab, but it does not contain the information you are looking for. You suspect there is another crontab manual page. Which command could you use to find out if another crontab manual page exists? (Choose 2.)

A. man a crontab

B. whatis crontab

C. man -k crontab

D. man --next crontab

E. man --showall crontab

You want to find out which jobs are currently queued in the laser print queue on your CUPS print server. Which command displays the information you need?

A. lpstat -t

B. lp -P laser

C. lpq -P laser

D. lpadmin -P laser

You want to view the status (locked, valid password, etc.) of the account tux. Which command displays the desired information?

A. passwd -L tux

B. passwd -v tux

C. passwd -p tux

D. passwd -S tux

What information do you need to set up an LDAP client? (Choose 4.)

A. LDAP version

B. LDAP base DN

C. Kind of encryption

D. Synchronization frequency

E. Address of the LDAP server

F. File name of the LDAP database

Which options are PAM module types that can be used in a PAM configuration file? (Choose 4.)

A. key

B. auth

C. card

D. account

E. session

F. password

You do not want to see any error messages when using the find command; you want to see only the results. Which command accomplishes this task?

A. find /etc -name "*conf" 0>/dev/null

B. find /etc -name "*conf" 1>/dev/null

C. find /etc -name "*conf" 2>/dev/null

D. find /etc -name "*conf" 3>/dev/null

Which command can you use to check an ext2/ext3 file system for a correct superblock, faulty data blocks, or faulty allocation of data blocks?

A. df

B. du

C. fdisk

D. e2fsck

E. reiserfsck

Which statements about the LVM components are correct? (Choose 2.)

A. A volume group is part of a logical volume.

B. Logical volumes are grouped in a master group.

C. A volume group always consists of one physical volume.

D. A physical volume can be a partition or an entire hard disk.

E. A volume group can be reduced in size by removing physical volumes.

F. The operating system accesses the volume groups like conventional physical partitions.