Operating System Questions

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301.

Which of the following is not the user file extension?

A

.ppt

B

.xls

C

.sys

D

.doc

Correct Answer: C

.sys is not the user file extension

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302.

Which of the following is the extension of WordPad?

A

.ppt

B

.xls

C

.rtf

D

None of above

Correct Answer: C

.rtf is the extension of WordPad

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303.

Which of the following is not a video file extension?

A

.avi

B

.wav

C

.mpeg

D

.mov

Correct Answer: B

.wav is not a video file extension

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304.

What is the extension of the font file?

A

.ttf

B

.mdb

C

.fft

D

.txt

Correct Answer: A

.ttf is the extension of the font file

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305.

Which is not executable file?

A

.com

B

.exe

C

.bat

D

.txt

Correct Answer: D

.txt is not executable file

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306.

To move to the beginning of a line of text, press the __________ key.

A

A

B

PgUp

C

Enter

D

Home

Correct Answer: D

To move to the beginning of a line of text, press the Home key.

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307.

When was MS Windows operating system introduced?

A

1975

B

1985

C

1995

D

2000

Correct Answer: B

Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft. Microsoft introduced an operating environment named Windows on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs). Source : wikipedia.org

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308.

First operating system was developed in

A

1958

B

1976

C

1956

D

1946

Correct Answer: C

The first operating system used for real work was GM-NAA I/O, produced in 1956 by General Motors' Research division for its IBM 704.

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309.

The maximum length of any single path from the root directory?

A

54

B

63

C

80

D

27

Correct Answer: B

The maximum length of any single path from the root directory is 63.

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310.

The part of machine level instruction, which tells the central processor what has to be done, is

A

Operation code

B

Address

C

Locator

D

Flip-Flop

E

None of the above

Correct Answer: A

The part of machine level instruction, which tells the central processor what has to be done, is Operation code

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