Operating Systems Concepts - Section 1

1.

Memory management is :

A.	not used in modern operating system
B.	replaced with virtual memory on current systems
C.	not used on multiprogramming systems
D.	critical for even the simplest operating systems
E.	None of the above

Answer: Option D

Explanation:

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2.

Bug means

A.	A logical error in a program
B.	A difficult syntax error in a program
C.	Documenting programs using an efficient documentation tool
D.	All of the above
E.	None of the above

Answer: Option A

Explanation:

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3.

In MS-DOS 5.0, which is the number that acts as a code to uniquely identify the software product?

A.	MS
B.	DOS
C.	MS DOS
D.	5.0
E.	None of the above

Answer: Option D

Explanation:

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4.

Page stealing

A.	is a sign of an efficient system
B.	is taking page frames from other working sets
C.	should be the tuning goal
D.	is taking larger disk spaces for pages paged out
E.	None of the above

Answer: Option B

Explanation:

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5.

What is the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer user's productivity?

A.	Defined values
B.	Fixed values
C.	Default values
D.	Special values
E.	None of the above

Answer: Option C

Explanation:

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6.

In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?

A.	index addressing
B.	indirect addressing
C.	auto increment
D.	auto decrement
E.	None of the above

Answer: Option D

Explanation:

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7.

What is the name of the operating system for the laptop computer called MacLite?

A.	Windows
B.	DOS
C.	MS-DOS
D.	OZ
E.	None of the above

Answer: Option D

Explanation:

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8.

While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?

A.	DISKCOPY
B.	COPY
C.	RENAME
D.	FORMAT
E.	None of the above

Answer: Option B

Explanation:

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