MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Unix knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For removing a link, ____ is used. |
| A. | link |
| B. | symlink |
| C. | unlink |
| D. | delink |
| Answer» D. delink | |
| 2. |
For creating a hard and symbolic link, which system calls are used? |
| A. | link, unlink |
| B. | link, symlink |
| C. | unlink, ulink |
| D. | hlink, slink |
| Answer» C. unlink, ulink | |
| 3. |
A super user can use ___ call for creating a directory. |
| A. | mknod |
| B. | mkdr |
| C. | rmdir |
| D. | chdir |
| Answer» B. mkdr | |
| 4. |
For creating and removing directories, which of the following system calls are used? |
| A. | mkdir |
| B. | rmdir |
| C. | chdir |
| D. | mkdir and rmdir |
| Answer» E. | |
| 5. |
Directories can also be opened, read and written in the same way as regular files. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of the following system calls performs the action of cd command? |
| A. | chdir |
| B. | fchdir |
| C. | mkdir |
| D. | chdir and fchdir |
| Answer» E. | |
| 7. |
The vnode table is also called _____ |
| A. | inode table |
| B. | file table |
| C. | vtable |
| D. | vttable |
| Answer» B. file table | |
| 8. |
The file table contains _________ |
| A. | mode of opening |
| B. | status flags |
| C. | offset pointer, reference count |
| D. | mode of opening, status flags, offset printer and reference count |
| Answer» E. | |
| 9. |
The file descriptor table contains all file descriptors for a process. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
How many data structures does the kernel maintain in memory that contain information about an open file? |
| A. | 3 |
| B. | 2 |
| C. | 5 |
| D. | 1 |
| Answer» B. 2 | |
| 11. |
Which of the following is not a valid symbolic constant? |
| A. | EPERM |
| B. | ENDENT |
| C. | EIOR |
| D. | EEXIST |
| Answer» D. EEXIST | |
| 12. |
What is the symbolic constant for errno 2? |
| A. | EPERM |
| B. | ENDENT |
| C. | EIO |
| D. | EEXIST |
| Answer» C. EIO | |
| 13. |
What is the significance of errno 13? |
| A. | not a super user |
| B. | no such file and directory |
| C. | permission denied |
| D. | no space left on device |
| Answer» C. permission denied | |
| 14. |
perror also uses error number to print the error messages. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
Which library function is used for printing error messages? |
| A. | strerror |
| B. | stderror |
| C. | strer |
| D. | ptrerror |
| Answer» B. stderror | |