CompTIA LX0-102 問題集

質問 1：
Which of the following commands can an administrator use to change a user's password expiry information? (Select THREE).
A. chage
B. chsh
C. passwd
D. chattr
E. usermod
正解：A,C,E

質問 2：
CORRECT TEXT
What command can be used to generate syslog entries of any facility and priority? (supply just the command name without a path).
正解：
logger

質問 3：
Which of the following benefits does an alias in bash provide?
A. It provides faster lookups for commands in the system directory.
B. It creates a local copy of a file from another directory.
C. It allows a string to be substituted for the first word of a simple command.
D. It hides what command you are running from others.
正解：C

質問 4：
On a dual boot system, every time the system is booted back into Linux the time has been set backward by two hours. Which of the following commands will correct the problem so it will not occur again?
A. date -d 'two hours'
B. time hwclock
C. hwclock --hctosys --localtime
D. ntpdate pool.ntp.org
正解：C

質問 5：
Which of the following entries can an administrator add to syslog.conf file to have all syslog messages generated by the administrator system go file to have all syslog messages generated by the administrator? system go to virtual console 12?
A. syslog tty12
B. /var/log/messages | /dev/tty12
C. | /dev/tty12
D. mail.* /dev/tty12
E. *.* /dev/tty12
正解：E

質問 6：
Which of the following is the BEST way to list all defined shell variables?
A. echo $ENV
B. env -a
C. set
D. env
正解：C

質問 7：
What is NTP?
A. A more secure protocol replacement for FTP.
B. A protocol and system for maintaining time on computers.
C. A simple tunneling protocol for computers behind firewalls.
D. A routing aid for finding next hops on a network.
正解：B

質問 8：
Which of the following is pool.ntp.org?
A. A community website used to discuss the localization of Linux.
B. A website which provides binary and source packages for the OpenNTPD project.
C. A virtual cluster of various timeservers.
D. A deprecated feature for maintaining system time in the Linux kernel.
正解：C

質問 9：
An administrator is looking into a new script that they have just received from a senior administrator. In the very first line the administrator notices a #! followed by a path to a binary. Linux will:
A. ignore the script.
B. use that binary to compile the script.
C. be replaced by that binary.
D. use that binary to interpret the script.
正解：D