Unix MCQ Questions and Answers for Practice

1. Unix OS was first developed by

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

2. Unix OS was first developed at

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

3. .mailrc is the file

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

4. A shell variable cannot start with

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

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

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

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

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

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

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

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

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

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

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

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

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

11. Each entry in inode table is of size

1. 64 bytes
2. 64 kb
3. 32kb
4. 32 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–y
2. message –on
3. msg –o
4. mesg –y

13. Hierarchy decides which operator

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

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. four
2. One
3. two
4. three