A systems administrator is checking the system logs. The administrator wants to look at the last 20 lines of a log. Which of the following will execute the command?
Correct Answer:B
A Linux administrator cloned an existing Linux server and built a new server from that clone. The administrator encountered the following error after booting the cloned server:
The administrator performed the commands listed below to further troubleshoot and mount the missing filesystem:
Which of the following should administrator use to resolve the device mismatch issue and mount the disk?
Correct Answer:D
A junior Linux administrator is tasked with installing an application. The installation guide states the application should only be installed in a run level 5 environment.
Which of the following commands would ensure the server is set to runlevel 5?
Correct Answer:B
A cloud engineer needs to change the secure remote login port from 22 to 49000. Which of the following files should the engineer modify to change the port number to the desired value?
Correct Answer:D
A development team asks an engineer to guarantee the persistency of journal log files across system reboots. Which of the following commands would accomplish this task?
Correct Answer:A