Free Access LinuxFoundation.LFCS.v2022-02-12.q121 Practice Test (Page 2)

Question 1

Which of the following shell redirections will write standard output and standard error output to a file named filename?

A.1>&2>filename

B.2>&1 >filename

C.>filename 2>&1

D.>>filename

E.1&2>filename

Question 2

SIMULATION
What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)

Question 3

CORRECT TEXT
Which command will display messages from the kernel that were output during the normal
boot sequence?

Question 4

After running the command umount /mnt, the following error message is displayed:
umount: /mnt: device is busy.
What is a common reason for this message?

A.The kernel thinks that a process is about to open a file in /mnt for reading.

B.A user has a file open in the /mnt directory.

C.Another file system still contains a symlink to a file inside /mnt.

D.The kernel has not finished flushing diskwrites to the mounted device.

E.The files in /mnt have been scanned and added to the locate database.

Question 5

SIMULATION
Which file lists which users can execute commands using sudo? (Specify the full name of the file, including path.)

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