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Total 260 questions
What is the default nice level when a process is started using the nice command?
Answer : B
What is the purpose of a screen reader?
Answer : A
After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)
Answer : newaliases, sendmail -bi
During a system boot cycle, what program is executed after the BIOS completes its tasks?
Answer : A
Which signal is missing from the following command that is commonly used to instruct adaemon to reinitialize itself, including reading configuration files? killall -s _______ daemon
Answer : HUP, SIGHUP, 1
How can the existing environment variable FOOBAR be suppressedfor the execution of the script./myscript only?
Answer : C
Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.)
Answer : A,C
Which of the following are syslog facilities? (Choose TWO correct answers.)
Answer : A,B
The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)
Answer : /usr/share/zoneinfo/
What output will the following command produce?
seq 1 5 20
Answer : A
What is true about the ntpdate command?
Answer : C
Which of the following commands moves and resumes in the background the last stopped shell job?
Answer : B
With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.)
Answer : DISPLAY, $DISPLAY
Which of the following commands prints a listof usernames (first column) and their primary group (fourth column) from the /etc/passwd file?
Answer : C