LFCS Free Practice Test

Which of the following commands puts the output of the command date into the shell variable mydate?

1. A. mydate="$(date)"
2. B. mydate="exec date"
3. C. mydate="$((date))"
4. D. mydate="date"
5. E. mydate="${date}"

Correct Answer: A

Which of the following commands prints all files and directories within the /tmp directory or its subdirectories which are also owned by the user root? (Choose TWO correct answers.)

1. A. find /tmp -uid root -print
2. B. find -path /tmp -uid root
3. C. find /tmp -user root -print
4. D. find/tmp -user root
5. E. find -path /tmp -user root –print

Correct Answer: CD

Which of the following statements is correct when talking about /proc/?

1. A. All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.
2. B. All files within /proc/ are read-only and their contents cannot be changed.
3. C. All changes to files in /proc/ are immediately recognized by the kernel.
4. D. All files within/proc/ are only readable by the root user.

Correct Answer: C

Creating a hard link to an ordinary file returns an error. What could be the reason for this?

1. A. The source file is hidden.
2. B. The source file is read-only.
3. C. The source file is a shell script.
4. D. The source file is already a hard link.
5. E. The source and the target are on different filesystems.

Correct Answer: E

CORRECT TEXT
What word is missing from the following SQL statement?
_______ count(*) from tablename;
(Please specify the missing word using lower-case letters only.)

1. A.

Correct Answer: select