Linux Foundation LFCS 問題集

質問 1：
Which command chain will count the number of regular files with the name of foo.txt within /home?
A. ls -lR /home | grep foo.txt | wc -l
B. grep -R foo.txt /home | wc -l
C. find /home -type f -name foo.txt | wc -l
D. find /home -name foo.txt -count
E. find /home -name foo.txt | wc -l
正解：C

質問 2：
Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose THREE correct answers.)
A. The script must begin with a shebang-line (#!) that points to the correct interpreter.
B. The script file must have the executable permission bit set.
C. The user issuing the command must be in the group script.
D. The file system on which the script resides must be mounted with the option scripts.
E. The script file must be found in the $PATH.
正解：A,B,E

質問 3：
Which function key is used to start Safe Mode in Windows NT?
A. F10
B. Windows NT does not support Safe Mode
C. F8
D. F6
正解：B

質問 4：
Instead of supplying an explicit device in /etc/fstab for mounting, what other options may be used to identify the intended partition? (Choose TWO correct answers.)
A. UUID
B. ID
C. LABEL
D. NAME
E. FIND
正解：A,C

質問 5：
CORRECT TEXT
The presence of what file will temporarily prevent all users except root from logging into the system? (Specify the full name of the file, including path.)
正解：
/etc/nologin

質問 6：
CORRECT TEXT
How many IP-addresses can be used for unique hosts inside the IPv4 subnet
192.168.2.128/28? (Specify the number only without any additional information.)
正解：
14

質問 7：
Which of the following commands updates the linker cache of shared libraries?
A. mkldconfig
B. mkcache
C. soconfig
D. ldconfig
E. lddconfig
正解：D