201-450 Online Practice Questions and Answers

Which commands below are useful to collect data about remote filesystem connections? (Choose TWO correct answers.)

A. pidstat

B. nfsiostat

C. sadf

D. cifsiostat

Which command will report information on memory usage, paging and block input/output?

A. free

B. memshow

C. ps

D. top

E. vmstat

Which of the following is a CD-ROM filesystem standard?

A. OSI9660

B. ISO9660

C. SR0FS

D. ISO8859

E. ROM-EO

Which single command will simulate a failed device within a RAID 5 array?

A. mdadm --remove /dev/md0 /dev/sdd1

B. mdadm --zero-superblock /dev/sdf3

C. mdadm --force-fault /dev/md2 /dev/sde2

D. mdadm --fail /dev/md0 /dev/sdc1

E. mdadm /dev/md0 --offline /dev/sdc1

The following is an excerpt from the output of tcpdump -nli eth1:

13:03:17.277327 IP 192.168.123.5.1065 > 192.168.5.112.21: Flags [.], ack 1 (truncated)

13:03:17.598624 IP 192.168.5.112.21 > 192.168.123.5.1065: Flags [P.], seq (truncated)

Which network service or protocol was used?

A. FTP

B. HTTP

C. SSH

D. DNS

E. DHCP

What does the -p3 option to the patch command do?

A. It will strip off path information from each file mentioned in the patch file up to and including the third / character.

B. patch continues execution as long as there are three or fewer errors.

C. It instructs patch to look up to three lines of context before or after the declared line in the original file for a match.

D. patch will keep three previous versions of each file in the output to prevent loss of change history.

E. It instructs patch to conform more strictly to the POSIX standard.

Which of the following are common backup systems used in Linux? (Choose TWO correct answers.)

A. Amanda

B. Bacula

C. DrBackup

D. BREWBackup

E. SARcheck

According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)

After installing a compiled kernel, it can not find any modules that are needed to be loaded. What make target was likely missed while installing the kernel?

Which file contains the message that is displayed above the login prompt of the system console? (Specify the full name of the file, including path.)