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NEW QUESTION 25
Ann, a junior systems administrator, is required to add a line to the /etc/yum.conf file. However, she receives the following error message when she tries to add the line:
Ann performs some diagnostics to attempt to find the root cause:
Which of the following commands should Ann execute to write content to /etc/yum?
- A. chmod 755 /etc/yum.conf
- B. setenforce 0
- C. setfacl -m m:rw /etc/yum.conf
- D. chattr -I /etc/yum.conf
Answer: D
Explanation:
https://www.linuxtoday.com/upload/5-chattr-commands-to-make-important-files-immutable-unchangeable-in-linux-141004025008.html
NEW QUESTION 26
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. racadm --fail /dev/sdb1
- C. racadm --remove /dev/sdb1
- D. mdadm /dev/sdb1 --remove /dev/md0
- E. mdadm /dev/sdb1 --fail /dev/md0
- F. mdadm /dev/md0 --fail /dev/sdb1
Answer: A,F
NEW QUESTION 27
A Linux administrator must identify a user with high disk usage. The administrator runs the # du -s /home/
*command and gets the following output:
Based on the output, User3 has the largest amount of disk space used. To clean up the file space, the administrator needs to find out more information about the specific files that are using the most disk space.
Which of the following commands will accomplish this task?
- A. du -sh /home/User/
- B. du -a /home/User3/*
- C. df -k /home/User3/files.txt
- D. find . -name /home/User3 -print
Answer: A
Explanation:
Explanation/Reference: https://unix.stackexchange.com/questions/37221/finding-files-that-use-the-most-disk-space
NEW QUESTION 28
An administrator receives a warning about a file system filling up, and then identifies a large file located at /tmp/largelogfile. The administrator deletes the file, but no space is recovered on the file system.
Which of the following commands would BEST assists the administrator in identifying the problem?
- A. pgrep largelogfile
- B. pkill /tmp/largelogfile
- C. lsof | grep largelogfile
- D. ps -ef | grep largelogfile
Answer: C
NEW QUESTION 29
A systems administrator needs to append output of ls -lha /opt command to the contents of a test.txt file. Which of the following commands will accomplish this?
- A. ls -lha /opt > test.txt
- B. ls -lha /opt < test.txt
- C. ls -lha /opt >> test.txt
- D. ls -lha /opt << test.txt
Answer: C
NEW QUESTION 30
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