Linux Foundation LFCS 問題集

質問 1：
CORRECT TEXT
Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)
正解：
HISTFILE

質問 2：
CORRECT TEXT
By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.)
正解：
/etc/skel

質問 3：
Which of the following commands puts the output of the command date into the shell variable mydate?
A. mydate="$(date)"
B. mydate="exec date"
C. mydate="${date}"
D. mydate="$((date))"
E. mydate="date"
正解：A

質問 4：
Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?
A. /etc/reboot
B. /proc/inittab
C. /etc/keys
D. /proc/keys
E. /etc/inittab
正解：E

質問 5：
Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?
A. xinetd
B. fingerd
C. tcpd
D. mountd
E. inetd
正解：C

質問 6：
What of the following can be done by the command ifconfig? (Choose TWO correct answers.)
A. Allow regular users to change the network configuration of a network interface.
B. Change the netmask used on a network interface.
C. Specify the kernel module to be used with a network interface.
D. Set a network interface active or inactive.
E. Specify which network services are available on a network interface.
正解：B,D

質問 7：
What entry can be added to the syslog.conf file to have all syslog messages generated by a system displayed on console 12?
A. syslog tty12
B. /var/log/messages | /dev/tty12
C. | /dev/tty12
D. mail.* /dev/tty12
E. *.* /dev/tty12
正解：E