Unix interview questions part 32
Unix interview questions part 32
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Total Questions: 20
1. Which option is preferred while killing a process using SIGKILL signal (9)?
Correct Answer is : -s
2. Which of the followings command(s) is used to kill the login shell?
Correct Answer is : kill -9 $$ and kill -s KILL 0
3. Kill -l will list all the signal numbers on our machine.
Correct Answer is : TRUE
4. What is a job?
Correct Answer is : group of processes
5. Which of the following command is used to suspend a job?
Correct Answer is : ctrl-Z
6. Which command will push the current foreground job to the background?
Correct Answer is : bg
7. ____ command will bring the background jobs to the foreground.
Correct Answer is : fg
8. The command fg %1 will bring the first background job to the foreground.
Correct Answer is : TRUE
9. The command bg %2 is valid.
Correct Answer is : TRUE
10. What does the following command do? $ kill %2
Correct Answer is : kills the second background job
11. Which of the following is not a part of job control facilities?
Correct Answer is : create a new job
12. POSIX shell provides job control facilities like bg or fg.
Correct Answer is : FALSE
13. Which command is used to list the status of jobs?
Correct Answer is : jobs
14. We can schedule a job to run at a specified time of day using _______ command.
Correct Answer is : at
15. We can use the _____ symbol with at command to redirect our output to a specified file.
Correct Answer is : >
16. Which of the following keyword is not supported by at command?
Correct Answer is : evening
17. Which one of the following forms used with at command is invalid?
Correct Answer is : at morning
18. We can list the jobs queued using at command by using ____ option.
Correct Answer is : -l
19. To remove a job from the queue, which option is used with at command?
Correct Answer is : -r
20. We cannot find out the name of the program scheduled using at command.
Correct Answer is : TRUE
