Operating System Questions

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421.

In analyzing the compilation of PL/I program, the description "creation of more optimal matrix" is associated with

A

Assembly and output

B

Code generation

C

Syntax analysis

D

Machine independent optimization

E

None of the above

Correct Answer: D

None.

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422.

In memory systems, boundary registers

A

are used for temporary program variable storage

B

are only necessary with fixed partitions

C

track page boundaries

D

track the beginning and ending of programs

E

None of the above

Correct Answer: D

None.

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423.

Which of the following is not applications software?

A

Word processing

B

Spreadsheet

C

UNIX

D

Desktop publishing

E

None of the above

Correct Answer: C

None.

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424.

Scissoring enables

A

a part of data to be displayed

B

entire data to be displayed

C

full data display on full area of screen

D

no data to be displayed

E

None of the above

Correct Answer: A

None.

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425.

A relocate program form is one which

A

cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.

B

consists of a program and relevant information for its relocation.

C

can itself performs the relocation of its address-sensitive portions.

D

all of the above

E

None of the above

Correct Answer: B

A relocate program form is one which consists of a program and relevant information for its relocation.

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426.

If you want to execute more than one program at a time, the systems software you are using must be capable of:

A

word processing

B

virtual memory

C

compiling

D

multitasking

E

None of the above

Correct Answer: D

If you want to execute more than one program at a time, the systems software you are using must be capable of multitasking.

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427.

Round-robin scheduling

A

allows interactive tasks quicker access to the processor

B

is quite complex to implement

C

gives each task the same chance at the processor

D

allows processor-bound tasks more time in the processor

E

None of the above

Correct Answer: C

Round-robin scheduling gives each task the same chance at the processor

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428.

What is the name of the system which deals with the running of the actual computer and not with the programming problems?

A

Operating system

B

Systems program

C

Object program

D

Source program

E

None of the above

Correct Answer: B

Systems program deals with the running of the actual computer and not with the programming problems.

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429.

What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?

A

8

B

1

C

16

E

None of the above

Correct Answer: B

None.

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430.

Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and

A

hold and wait

B

deadlock avoidance

C

race around condition

D

buffer overflow

E

None of the above

Correct Answer: A

None.

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