A configuration management tool running every minute is enforcing the service HTTPd to be started. To perform maintenance, which of the following series of commands can be used to prevent the service from being started?

• A.systemctl stop httpd && systemctl mask httpd
• B.systemctl disable httpd && systemctl mask httpd
• C.systemctl stop httpd && systemctl hide httpd
• D.systemctl disable httpd && systemctl hide httpd

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Which of the following is the purpose of the vmlinux file on a Linux system?

• A.To prevent a Linux kernel panic
• B.To start a Linux virtual machine
• C.To provide the executable kernel for the system
• D.To enable resource access to the network

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A Linux administrator tried to copy files to a remote server but received an error message indicating a lack of
free space on the disk. The administrator issued a df command and verified adequate free space and inodes
on the filesystem.
Which of the following commands is the BEST way to diagnose the issue?

• A.cat /proc/meminfo
• B.du -a / | sort -n -r | head -n 30
• C.lsof -nP | grep deleted
• D.find / -type f -size +50M

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A junior Linux administrator is updating local name resolution to support IPv6. The administrator issues the command cat /etc/hostsand receives the following output:
127.0.0.1 localhost
Which of the following actions should the administrator perform to accomplish this task?

• A.Modify the /etc/hostsfile, and add the ipv6 localhostentry to the file.
• B.Modify the /etc/hostsfile, and add the ipv4 localhostentry to the file.
• C.Modify the /etc/hostsfile, and add the ::1 localhostentry to the file.
• D.Modify the /etc/hostsfile, and add the 0.0.0.0 localhostentry to the file.

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Joe, a system administrator, realizes that the time zone on a system is different than his local time zone. Joe runs the command export Tz-America .Chicago to resolve this. However the next Joe logs in, Joe notices the issue has returned. Which of the following is the BEST way for Joe to fix this issue so the solution persists across logins?

• A.Add the export Tz=America/Chicage command to the bash_profile file.
• B.Run the export Tz=/etc/localtime command
• C.Run the export LC ALL=America/Chicago command
• D.Set the correct the zone with the date command.

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