MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Unix knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which one of the following forms used with at command is invalid? |
| A. | at noon |
| B. | at now +2 years |
| C. | at 3:07 + 1 day |
| D. | at morning |
| Answer» E. | |
| 2. |
Which of the following keyword is not supported by at command? |
| A. | now |
| B. | noon |
| C. | tomorrow |
| D. | evening |
| Answer» E. | |
| 3. |
We can use the _____ symbol with at command to redirect our output to a specified file. |
| A. | > |
| B. | < |
| C. | >> |
| D. | % |
| Answer» B. < | |
| 4. |
We can schedule a job to run at a specified time of day using _______ command. |
| A. | batch |
| B. | at |
| C. | cron |
| D. | jobs |
| Answer» C. cron | |
| 5. |
Which command is used to list the status of jobs? |
| A. | fg |
| B. | JOBS |
| C. | jobs |
| D. | fg |
| Answer» D. fg | |
| 6. |
POSIX shell provides job control facilities like bg or fg. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which of the following is not a part of job control facilities? |
| A. | relate a job to the background |
| B. | bring it back to the foreground |
| C. | kill a job |
| D. | create a new job |
| Answer» E. | |
| 8. |
The command bg %2 is valid. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
The command fg %1 will bring the first background job to the foreground. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
____ command will bring the background jobs to the foreground. |
| A. | bg |
| B. | fg |
| C. | ctrl-Z |
| D. | kill |
| Answer» C. ctrl-Z | |
| 11. |
Which command will push the current foreground job to the background? |
| A. | bg |
| B. | fg |
| C. | ctrl-Z |
| D. | kill |
| Answer» B. fg | |
| 12. |
Which of the following command is used to suspend a job? |
| A. | ctrl-Z |
| B. | ctrl-Q |
| C. | bg |
| D. | $ |
| Answer» B. ctrl-Q | |
| 13. |
What is a job? |
| A. | group of tasks |
| B. | group of commands |
| C. | group of processes |
| D. | group of signals |
| Answer» D. group of signals | |