MCQOPTIONS
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MCQOPTIONS
This section includes 19 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 system call is used by the parent process to wait for the child process to complete? |
| A. | wait |
| B. | exec |
| C. | fork |
| D. | exit |
| Answer» C. fork | |
| 2. |
When fork() is invoked, the child process created gets a new PID. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following system call is used for creating a new process? |
| A. | read |
| B. | fork |
| C. | wait |
| D. | new |
| Answer» C. wait | |
| 4. |
A system call is a programmatic way in which the program requests for the service from the kernel of an operating system. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
There are ___ distinct phases of a process. |
| A. | 2 |
| B. | 5 |
| C. | 4 |
| D. | 3 |
| Answer» E. | |
| 6. |
What will the output of the following command? |
| A. | processes running on terminal named console |
| B. | undefined output |
| C. | erroneous |
| D. | processes running on the current terminalView Answer |
| Answer» B. undefined output | |
| 7. |
The -a option when used with ps command lists processes of all users but doesn’t display the system processes. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
A_SYSTEM_CALL_IS_A_PROGRAMMATIC_WAY_IN_WHICH_THE_PROGRAM_REQUESTS_FOR_THE_SERVICE_FROM_THE_KERNEL_OF_AN_OPERATING_SYSTEM.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
When fork() is invoked, the child process created gets a new PID.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following system call is used for creating a new process?$ |
| A. | read |
| B. | fork |
| C. | wait |
| D. | new |
| Answer» B. fork | |
| 11. |
Which system call is used to run a new program? |
| A. | fork |
| B. | wait |
| C. | exec |
| D. | exit |
| Answer» C. exec | |
| 12. |
What is the value returned by fork system call, when the creation of child process is unsuccessful? |
| A. | positive integer |
| B. | negative integer |
| C. | zero |
| D. | fractional value |
| Answer» D. fractional value | |
| 13. |
There are ___ distinct phases of a process? |
| A. | 2 |
| B. | 5 |
| C. | 4 |
| D. | 3 |
| Answer» B. 5 | |
| 14. |
Which option is used with ps command to list system processes? |
| A. | -A |
| B. | -a |
| C. | -e |
| D. | –A and -e |
| Answer» E. | |
| 15. |
The -a option when used with ps command lists processes of all users but doesn’t display the system processes.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Which option is used by the system administrator for displaying processes of a user? |
| A. | -f |
| B. | -u |
| C. | -a |
| D. | -e |
| Answer» C. -a | |
| 17. |
Which option is used by ps command to get a detailed listing of process attributes? |
| A. | -u |
| B. | -f |
| C. | -l |
| D. | -x |
| Answer» C. -l | |
| 18. |
Which of the following attribute is not shown by ps command? |
| A. | PID |
| B. | PPID |
| C. | tty |
| D. | size |
| Answer» E. | |
| 19. |
Which command shows some attributes of a process? |
| A. | pid |
| B. | $$ |
| C. | ps |
| D. | HOME |
| Answer» D. HOME | |