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Q73. - (Topic 5)
What command is used to make an exact copy, at a single point in time, of a logical volume for backup purposes?
A. lvsnap
B. lvsnapshot
C. lvcreate
D. lvcopy
E. lvclone
Answer: C
Q74. - (Topic 6)
Which of the following commands will list the IPv4 neighbors of the current system? This includes IP and MAC addresses. (Choose TWO correct answers.)
A. arp
B. ifconfig -lv eth0
C. netstat -al
D. ip neigh show
Answer: A,D
Q75. CORRECT TEXT - (Topic 4)
What keyword is missing in the following line from /etc/fstab in order to make a USB flash device writeable by the user fred when mounted:
/dev/sda1 /mnt/usbflash vfat defaults,users, ______=fred,umask=022, 0 0 (Provide the option name only without any settings)
Answer:
uid
Q76. CORRECT TEXT - (Topic 4)
Which command is used to create a ISO9660 filesystem? (Specify ONLY the command without any path or parameters.)
Answer:
mkisofs, genisoimage
Q77. - (Topic 7)
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.
Answer: A
Q78. CORRECT TEXT - (Topic 4)
Which directory in /dev/disk/ can be used to determine the UUID of a connected hard disk?
Answer:
/dev/disk/by-uuid, by-uuid, /dev/disk/by-uuid/
Q79. - (Topic 1)
When is historical data of resource usage important? (Select THREE correct answers.)
A. Predicting when resources will need to be increased.
B. Selecting a computer vendor.
C. Identifying processes killed during out of memory occurrences.
D. Diagnosing capacity problems.
E. Troubleshooting a software problem.
Answer: A,D,E
Q80. - (Topic 8)
What would be displayed as the result of issuing the command ps ef?
A. A listing of the users running processes formatted as a tree.
B. A listing of the stopped processes.
C. A listing of all the running processes formatted as a tree.
D. A listing of all system processes formatted as a tree.
Answer: A
Explanation: Without any options, the ps command displays the running processes associated with the current user ID. The e option displays the processes’ environment and the f option displays the processes in a tree format, illustrating the relationship between parent and child relationships.
Reference: http://www.oreillynet.com/linux/cmd/p/ps.html
Incorrect Answers
B:Only the running processes are listed, not the stopped processes. C:You would need the a option to display all the running processes. D:Only the user processes are listed, not the system processes.