Operating System Questions

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361.

An algorithm is best described as

A

A computer language

B

A step by step procedure for solving a problem

C

A branch of mathematics

D

All of the above

E

None of the above

Correct Answer: B

An algorithm is best described as a step by step procedure for solving a problem

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362.

The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as

A

multiprogramming

B

spooling

C

caching

D

virtual programming

E

None of the above

Correct Answer: B

The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as 'spooling'.

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363.

Block caches or buffer caches are used

A

to improve disk performance

B

to handle interrupts

C

to increase the capacity of the main memory

D

to speed up main memory read operation

E

None of the above

Correct Answer: A

Block caches or buffer caches are used to improve disk performance

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364.

Which of the following statements is false?

A

a small page size causes large page tables

B

internal fragmentation is increased with small pages

C

a large page size causes instructions and data that will not be referenced brought into primary storage

D

I/O transfers are more efficient with large pages

E

None of the above

Correct Answer: B

None.

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365.

The action of parsing the source program into the proper syntactic classes is known as

A

syntax analysis

B

lexical analysis

C

interpretation analysis

D

general syntax analysis

E

None of the above

Correct Answer: B

The action of parsing the source program into the proper syntactic classes is known as lexical analysis

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366.

Which, of the following is not true about the description of a decision table?

A

A decision table is easy to modify

B

A decision table is directly understood by the computer

C

A decision table is easy to understand

D

All of the above

E

None of the above

Correct Answer: B

A decision table is directly understood by the computer is not true about the description of a decision table

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367.

Trojan-Horse programs

A

are legitimate programs that allow unauthorized access

B

do not usually work

C

are hidden programs that do not show up on the system

D

usually are immediately discovered

E

None of the above

Correct Answer: A

Trojan-Horse programs are legitimate programs that allow unauthorized access

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368.

When did IBM release the first version of disk operating system DOS version 1.0?

A

1981

B

1982

C

1983

D

1984

E

None of the above

Correct Answer: A

In 1981 IBM release the first version of disk operating system DOS version 1.0.

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369.

Which of the following is false about disk when compared to main memory?

A

non-volatile

B

longer storage capacity

C

lower price per bit

D

faster

E

None of the above

Correct Answer: D

None.

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370.

Producer consumer problem can be solved using

A

semaphores

B

event counters

C

monitors

D

all of the above

E

None of the above

Correct Answer: D

None.

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