MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 of the following system call uses file descriptor as an argument? |
| A. | read |
| B. | write |
| C. | close |
| D. | read, write, close |
| Answer» E. | |
| 2. |
System calls and library functions are same. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
For changing the time stamps, _____ system call is invoked. |
| A. | atime |
| B. | utime |
| C. | mtime |
| D. | ch |
| Answer» C. mtime | |
| 4. |
Both the owner and group owner can be changed by ____ call. |
| A. | chown |
| B. | chgrp |
| C. | chuser |
| D. | ch |
| Answer» B. chgrp | |
| 5. |
chmod and fchmod calls are used for changing file permissions. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of the following is used with access call for checking the owner s permissions? |
| A. | R_OK |
| B. | W_OK |
| C. | X_OK |
| D. | R_OK, W_OK, X_OK |
| Answer» E. | |
| 7. |
For checking a file access rights, ___ system call is used. |
| A. | acc |
| B. | access |
| C. | axs |
| D. | filert |
| Answer» C. axs | |
| 8. |
Which of the following macro returns true if the file type is a directory? |
| A. | S_ISREG |
| B. | S_ISDIR |
| C. | S_ISCHR |
| D. | S_ISFIFO |
| Answer» C. S_ISCHR | |
| 9. |
S_IFxxx macros are used for checking the file types. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
____ system call is used for renaming a file, directory or symbolic link. |
| A. | renam |
| B. | rename |
| C. | ren |
| D. | change |
| Answer» C. ren | |