CompTIA XK0-004 問題集

質問 1：
A user issues the following command:
ls -l /var/log | egrep -e '^d[rwx]{3}.*[rw-]{3}.*'
The list of files in the system is shown below:

Which of the following results matches the command issued?
A. drwxr-xr-x 2 root root 4096 Apr 24 08:36 apt
drwxr-xr-x 2 root root 4096 Apr 9 14:25 dist-upgrade
drwxr-x--- 2 root adm 4096 Apr 25 14:41 unattended-upgrades
B. drwxr-xr-x 2 root root 4096 Apr 24 08:36 apt
drwxr-xr-x 2 root root 4096 Apr 9 14:25 dist-upgrade
drwxr-x--- 2 root adm 4096 Apr 25 15:41 attended-upgrades
C. drwxr-x--- 2 root adm 4096 Apr 25 14:41 unattended-upgrades
drwxr-x--- 2 root adm 4096 Apr 25 15:41 attended-upgrades
D. -rw-r--r-- 1 root root 2877 Apr 24 14:14 alternatives.log
-rw-r--r-- 1 syslog adm 246139 Jun 12 15:21 cloud-init.log
-rw-r--r-- 1 root root 8872 Jun 12 15:21 cloud-init-output.log
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Which of the following BEST describes the purpose of the X11 system?
A. X11 provides command line capabilities
B. X11 provides telephony capabilities.
C. X11 provides networking capabilities
D. X11 provides graphical display capabilities
正解：D

質問 3：
A Linux administrator is configuring a web server that connects to an external SQL database. However, after starting the web application, the logs are show an error message:

Which of the following is the BEST way to resolve this issue?
A. echo 0> seLinux/enforce
B. restorecon -rv /var/www/ html
C. setseboo1 -p http-can-network_connect_db 1
D. sed -1 s/'SELINUX. ' /SELINUXpermissive// etc/selinux/config
正解：D

質問 4：
A new IO card has been added to the security server to log the opening and closing of the main entrance. A switch is attached, so the interface card returns a 1 when the door is opened and a 0 when the door is closed.
Which of the following describes the Linux device to which this switch is attached?
A. /dev/gpio
B. /dev/sg0
C. /dev/port
D. /dev/tty0
正解：C

質問 5：
A Linux administrator wants to fetch a Git repository from a remote Git server.
Which of the following is the BEST command to perform this task?
A. git clone
B. git merge
C. git config
D. git checkout
正解：A

質問 6：
As a Systems Administrator, to reduce disk space, you were tasked to create a shell script that does the following:
Add relevant content to /tmp/script.sh, so that it finds and compresses rotated files in /var/log without recursion.
INSTRUCTIONS
Fill the blanks to build a script that performs the actual compression of rotated log files.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

正解：


質問 7：
An administrator needs to kill the oldest Bash shell running in the system. Which of the following commands should be issued to accomplish this task?
A. ps -eo pid,etime,cmd | grep bash (to obtain PID)
kill -9 PID
B. killall -15 -o bash
C. ps -eo pid,etime| grep bash (to obtain PID)
killall -9 PID
D. ps axjf | grep bash to obtain PID
kill -9 PID
正解：B