CompTIA XK0-004 問題集

質問 1：
A Linux administrator needs to add some files in a directory to the Git repository but must exclude some local
.tmp files that are occasionally created by the scripts.
Which of the following is the BEST way to accomplish this task?
A. git add -x .tmp *
B. rm -rf .tmp
C. git rm .tmp
D. echo .tmp >> .gitignore
正解：D

質問 2：
A Linux administrator receives a call from the network operations team that one of the database applications is down on a Linux server. The Linux server is configured with RAID 1 for redundancy, and the array /dev/md0 consists of two devices called /dev/sda1 and /dev/sdb1. After looking at the status of the RAID 1 array in the /proc/mdstat file, the administrator discovers the RAID 1 array is degraded and the disk /dev/sdb1 on which the database application was installed appears to have failed.

Which of the following steps should the administrator take to remove the device /dev/sdb1 from the RAID array md0? (Choose two.)
A. mdadm /dev/md0 --remove /dev/sdb1
B. mdadm /dev/md0 --fail /dev/sdb1
C. racadm --fail /dev/sdb1
D. racadm --remove /dev/sdb1
E. mdadm /dev/sdb1 --fail /dev/md0
F. mdadm /dev/sdb1 --remove /dev/md0
正解：A,B

質問 3：
A junior Linux administrator needs to access production servers using a secure SSH protocol. Which of the following files should contain the public key to gain remote access to the server?
A. /etc/sshd/ssh.conf
B. /etc/authorized_keys
C. ~/.ssh/authorized_keys
D. ~/ssh/authorized-keys
正解：C

質問 4：
Which of the following commands will let a Linux user know the PCI devices that are installed in the system?
A. cat /proc/devices/pci
B. cat /proc/sys/dev
C. lsdev
D. lspci
正解：D

質問 5：
A systems administrator needs to retrieve specific fields from a csv file. Which of the following tools would accomplish this task?
A. awk
B. sort
C. echo
D. print
正解：A

質問 6：
A systems administrator is editing a service file for the web server. In order to continue testing, all web server processes must be shut down. The administrator accomplishes this with the following commands:

Based on the command output above, which of the following BEST explains how this was accomplished?
A. Killing the parent process with -15 gives it a chance to kill all of the child processes.
B. The -15 signal gracefully kills the process and all Its parent and child processes.
C. The -15 signal tells the kill command to kill all processes matching the Apache string.
D. The -15 signal will allow the kill command to automatically seek out all child processes and kill them as well.
正解：A

質問 7：
Joe is no longer employed by a company and Ann is tatang over his protects several team members work out of the project directory inducing Ann. The administrator needs to assign ownership of all of Joe's files in the /project directory to Ann. Which of the following should the administrator run to accomplish this task?
A. Restorecon -f joe ann -r /projects
B. Chown -R joe,ann /projects
C. Locate / projects | grep joe | chown -R jeo -f-
D. Find /project -user joe -exec chown ann { } /;
正解：D