Unix MCQ Questions and Answers for Practice

1. Unix OS was first developed by

1. Dennis Ritchie
2. Bjarne stroustrup
3. Ken Thompson
4. Brian Kernighan

2. Unix OS was first developed at

1. Microsoft corp. USA
2. AT & T Bell Labs, USA
3. IBM, USA
4. Borland International, USA

3. .mailrc is the file

1. Which stores the incoming mail
2. Which is used to type the mail to be sent
3. Which is invoked when the mail command is executed
4. Which permits you to customize the vi environment

4. A shell variable cannot start with

1. An alphabet
2. A number
3. A special symbol other than an underscore
4. Both b and c above

5. A Sticky bit applies to a file would mean that

1. No one can remove it
2. It would stick around in memory even when its execution is over
3. Next time you login it would get executed on its own
4. None of the above

6. After typing the contents of file test created by you by giving the command cat>test you save the contents by

1. Pressing the keys ctrl-c
2. Typing save and pressing enter
3. Pressing Esc key
4. Pressing ctrl-d

7. After you have entered text in your file, to save and quit vi you will use

1. Esc shift ZZ
2. Shift ZZ
3. Esc:q Enter
4. None of the above

8. All user directories are usually placed in..................directory.

1. Letc
2. lusr
3. ldev
4. none

9. An until loop ensures that the statement within the loop get executed

1. Only once
2. Atleast once
3. Not even once
4. None of the above

10. Binary executable required for system administration is usually placed in................directory.

1. Letc
2. lusr
3. ldev
4. none

11. Each entry in inode table is of size

1. 64 kb
2. 32kb
3. 32 bytes
4. 64 bytes

12. For a person to receive messages he should have his terminal set to a parameter which will allow him receive messages.The command to set this parameter is

1. message –on
2. msg –o
3. mesg –y
4. message–y

13. Hierarchy decides which operator

1. Is most important
2. Is used first
3. Is fastest
4. Operates on largest numbers

14. If the user has read a news item he cannot read it again because of creation of the file

1. _news_time
2. news.time
3. .news.time
4. .news_time

15. If there are three links for a file then the number of copies of the file would be

1. One
2. two
3. three
4. four