Q89. While trying to access a website hosted on the server, the systems administrator receives the following error message:

The administrator then performs some diagnostics:

Which of the following commands should the administrator use to fix the issue?

Q90. Which of the following commands would show the default printer on a Linux system?

Q91. An administrator reviews the following configuration file provided by a DevOps engineer:

Which of the following would the application parsing this file MOST likely have to support?

Q92. A systems administrator is configuring options on a newly installed Linux VM that will be deployed to the Pacific time zone. Which of the following sets of commands should the administrator execute to accurately configure the correct time settings?
cd /etc

Q93. A Linux administrator has configured a Linux system to be used as a router. The administrator confirms that two network adapters are properly installed and functioning correctly. In addition, the output of the iptables -L command appears to contain a complete firewall configuration.
Which of the following commands does the administrator need to issue for the router to be fully functional?

Q94. Given the output below:

Which of the following commands can be used to remove MyPhoto.jpg from the current directory?

Q95. A systems administrator is enabling quotas on the /home directory of a Linux server. The administrator makes the appropriate edits to the /etc/fstabfile and attempts to issue the commands to enable quotas on the desired directory. However, the administrator receives an error message stating the filesystem does not support quotas. Which of the following commands should the administrator perform to proceed?

Q96. Ann, a junior Linux administrator, needs to copy software from her local machine to assist in developing a software application on a remote machine with the IP address 192.168.3.22. The file needs to be placed on the /tmpdirectory. After downloading the RPM to the local machine, which of the following commands would be BEST to use to copy the software?

Q97. A Linux administrator suspects unauthorized users are attempting to log in to the Linux server remotely.
Which
of the following should the administrator check FIRST?

Q98. A systems administrator observes high latency values when reaching a remote web server. Which of the following commands will help determine and isolate issues on the network side?

Q99. A Linux systems administrator needs to provision multiple web servers into separate regional datacenters. The systems architect has instructed the administrator to define the server infrastructure using a specific tool that consumes a text-based file.
Which of the following is the BEST reason to do this?

Q100. A server is almost out of free memory and is becoming unresponsive. Which of the following sets of commands will BEST mitigate the issue?

Q101. A systems administrator installs a simple package, but the Linux system returns the following error: rpmdb open fails. To verify if there is a problem in the RPM database, the systems administrator runs the following command:

Which of the following commands should the systems administrator run NEXT to resolve this issue?

Q102. An administrator notices a directory on a web server named /var/www/html/old_reports that should no longer be accessible on the web. Which of the following commands will accomplish this task?

Q103. 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?

Q104. Which of the following is used on the client to boot a Linux system from a TFTP server?

Q105. A systems administrator must clean up all application files in the directory /var/log/app. However, the company’s security policy requires the files to be kept on the backup server for one year. The Linux server has only the tar and bzip2 packages installed.
Which of the following commands will package and compress the files?

Q106. A Linux engineer is troubleshooting a newly added SCSI device for a Linux server that needed more disk space without rebooting. The engineer discovers that the new device is not visible by the Linux kernel in fdisk -l output. Which of the following commands should be used to rescan the entire SCSI bus?

Q107. Which of the following commands will let a Linux user know the PCI devices that are installed in the system?