| 1. |
Unix OS was first developed by |
| A. | dennis ritchie |
| B. | bjarne stroustrup |
| C. | ken thompson |
| D. | brian kernighan |
| Answer» C. ken thompson | |
| 2. |
Unix OS was first developed at |
| A. | microsoft corp. usa |
| B. | at & t bell labs, usa |
| C. | ibm, usa |
| D. | borland international, usa |
| Answer» B. at & t bell labs, usa | |
| 3. |
Unix is written in |
| A. | c language |
| B. | ada language |
| C. | perl language |
| D. | pascal language |
| Answer» A. c language | |
| 4. |
Unix is a |
| A. | single user, single tasking os |
| B. | single user, multi-tasking os |
| C. | multi-user, multi- tasking os |
| D. | none |
| Answer» C. multi-user, multi- tasking os | |
| 5. |
Which of the following is a command for searching a pattern in a file? |
| A. | find |
| B. | grep |
| C. | look up. |
| D. | none |
| Answer» B. grep | |
| 6. |
Unix Command can be typed in |
| A. | lower case |
| B. | upper case |
| C. | both the cases |
| D. | none |
| Answer» A. lower case | |
| 7. |
Shell Program is stored in a file called |
| A. | unix |
| B. | sh |
| C. | dd |
| D. | cc |
| Answer» B. sh | |
| 8. |
WhicBh shell offers a command history feature |
| A. | c shell |
| B. | visual shell |
| C. | bourne shell |
| D. | korn shell |
| Answer» C. bourne shell | |
| 9. |
The minimum number of links for any directory file are |
| A. | 3 |
| B. | 4 |
| C. | 1 |
| D. | 2 |
| Answer» D. 2 | |
| 10. |
The default value of Umask is |
| A. | 1024 |
| B. | 4021 |
| C. | 0022 |
| D. | 1001 |
| Answer» C. 0022 | |
| 11. |
Binary executable required for system administration is usually placed in ________ directory. |
| A. | letc |
| B. | lusr |
| C. | ldev |
| D. | none |
| Answer» A. letc | |
| 12. |
All user directories are usually placed in _________ directory. |
| A. | letc |
| B. | lusr |
| C. | ldev |
| D. | none |
| Answer» B. lusr | |
| 13. |
If there are three links for a file then the number of copies of the file would be |
| A. | one |
| B. | two |
| C. | three |
| D. | four |
| Answer» A. one | |
| 14. |
After typing the contents of file test created by you by giving the command cat>test you save the contents by |
| A. | pressing the keys ctrl-c |
| B. | typing save and pressing enter |
| C. | pressing esc key |
| D. | pressing ctrl-d |
| Answer» D. pressing ctrl-d | |
| 15. |
The file for which we do not have write permission can be deleted using the command |
| A. | rm-i file |
| B. | rm-i file |
| C. | rm-r-file |
| D. | rm-f-file |
| Answer» D. rm-f-file | |
| 16. |
The permission 746 can be represented as |
| A. | rwxrwx- -x |
| B. | rw- -w-r-x |
| C. | rwxr-xr-x |
| D. | rwxr- -rw– |
| Answer» D. rwxr- -rw– | |
| 17. |
A Sticky bit applies to a file would mean that |
| A. | no one can remove it |
| B. | it would stick around in memory even when its execution is over |
| C. | next time you login it would get executed on its own |
| D. | none of the above |
| Answer» B. it would stick around in memory even when its execution is over | |
| 18. |
The command pwd gives |
| A. | present working directory |
| B. | password in encrypted form |
| C. | password in decrypted form |
| D. | none |
| Answer» A. present working directory | |
| 19. |
Which of the following is not a unix command |
| A. | cd |
| B. | rm |
| C. | pwd |
| D. | del |
| Answer» D. del | |
| 20. |
The size of any block in the unix file system is |
| A. | 512 bytes |
| B. | 1024 bytes |
| C. | 2048 bytes |
| D. | any of the above |
| Answer» D. any of the above | |
| 21. |
To find the block size on your file system the command is |
| A. | blksz |
| B. | szblk |
| C. | chksz |
| D. | cmchk |
| Answer» D. cmchk | |
| 22. |
Each entry in inode table is of size |
| A. | 64 kb |
| B. | 32kb |
| C. | 32 bytes |
| D. | 64 bytes |
| Answer» D. 64 bytes | |
| 23. |
The program contained in boot block, that loads kernel into memory is called |
| A. | disk bootstrap program |
| B. | master boot program |
| C. | shell program |
| D. | none of the above |
| Answer» A. disk bootstrap program | |
| 24. |
The state of the file system is contained in |
| A. | boot block |
| B. | a special block created by book block |
| C. | super block |
| D. | none of the above |
| Answer» C. super block | |
| 25. |
Which file gets executed when we use the passwd command |
| A. | /etc/passwd |
| B. | /etc/pwd |
| C. | /bin/passwd |
| D. | /passwd |
| Answer» C. /bin/passwd | |