Operating System Questions

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521.

Which of the following can be accesses by transfer vector approach of linking?

A

External data segments

B

External subroutines

C

Data located in other procedures

D

All of the above

E

None of the above

Correct Answer: B

None.

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522.

Which of the following terms refers to the degree to which data in a database system are accurate and correct?

A

data security

B

data validity

C

data independence

D

data integrity

E

None of the above

Correct Answer: D

Data integrity is a fundamental component of information security. In its broadest use,

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523.

In analyzing the compilation of PL/I program, the term "Syntax analysis" is associated with

A

recognition of basic syntactic constructs through reductions

B

recognition of basic elements and creation of uniform symbols

C

creation of more optional matrix

D

use of macro processor to produce more optimal assembly code

E

None of the above

Correct Answer: A

None.

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524.

A hardware device that is capable of executing a sequence of instructions, is known as

A

CPU

B

ALU

C

CU

D

Processor

E

None of the above

Correct Answer: D

A hardware device that is capable of executing a sequence of instructions, is known as processor

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525.

Which of following is/are the advantage(s) of modular programming?

A

The program is much easier to change

B

Modules can be reused in other programs

C

Easy debugging

D

Easy to compile

E

None of the above

Correct Answer: A

None.

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526.

The function(s) performed by the paging software is (are)

A

Implementation of the access environment for all programs in the system

B

Management of the physical address space

C

Sharing and protection

D

All of the above

E

None of the above

Correct Answer: D

None.

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527.

A critical region is

A

a program segment that has not been proved bug-free

B

a program segment that often causes unexpected system crashes

C

a program segment where shared resources are accessed

D

one which is enclosed by a pair of P and V operations on semaphores

E

none is the above

Correct Answer: D

A critical region is one which is enclosed by a pair of P and V operations on semaphores

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528.

The primary job of the operating system of a computer is to

A

command resources

B

manage resources

C

provide utilities

D

be user friendly

E

None of the above

Correct Answer: B

The primary job of the operating system of a computer is to manage resources

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529.

Which of the following is a measure to test how good or bad a modular design is

A

Module strength

B

Module coupling

C

Static analysis

D

All of the above

E

None of the above

Correct Answer: A

None.

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530.

The Operating system manages

A

Memory

B

Processor

C

Disks and I/O devices

D

All of the above

E

None of the above

Correct Answer: D

None.

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