An administrator notices the HISTSIZEvariable is 50, using the commands below:
HISTSIZE=50
export HISTSIZE
The administrator rechecks the HISTSIZEvalue using echo HISTSIZEbut gets no value. Which of the following commands should the administrator use to retrieve its value?
While creating a file on a volume, the Linux administrator receives the following message: No space left on device. Running the df -m command, the administrator notes there is still 50% of usage left. Which of the following is the NEXT step the administrator should take to analyze the issue without losing data?
A systems administrator is investigating low performance a server. After executing some diagnostic commands, the administrator analyzes the data:
Which of the following is the cause of low performance on the server?
Which of the following BEST describes the purpose of the X11 system?
A server is almost out of free memory and is becoming unresponsive. Which of the following sets of commands will BEST mitigate the issue?
