Operating System Questions

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331.

Memory

A

is a device that performs a sequence of operations specified by instructions in memory.

B

is the device where information is stored

C

is a sequence of instructions

D

is typically characterized by interactive processing and time-slicing of the CPU

E

None of the above

Correct Answer: B

Memory is the device where information is stored.

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332.

Which of the following rules out the use of GO TO?

A

Flowchart

B

HIPO-DIAGRAMS

C

Nassi-Shneiderman diagram

D

All of the above

E

None of the above

Correct Answer: C

None.

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333.

A system program that sets up an executable program in main memory ready for execution is

A

assembler

B

linker

C

loader

D

compiler

E

None of the above

Correct Answer: C

A system program that sets up an executable program in main memory ready for execution is loader

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334.

Which of the following are loaded into main memory when the computer is booted?

A

internal command instructions

B

external command instructions

C

utility programs

D

word processing instructions

E

None of the above

Correct Answer: A

Internal command instructions are loaded into main memory when the computer is booted

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335.

The FIFO algorithm

A

executes first the job that last entered the queue

B

executes first the job that first entered the queue

C

execute first the job that has been in the queue the longest

D

executes first the job with the least processor needs

E

None of the above

Correct Answer: B

The simplest page-replacement algorithm is a FIFO algorithm. The first-in, first-out (FIFO) page replacement algorithm is a low-overhead algorithm that requires little bookkeeping on the part of the operating system. In simple words, on a page fault, the frame that has been in memory the longest is replaced.

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336.

What is the name given to the organized collection of software that controls the overall operation of a computer?

A

Working system

B

Peripheral system

C

Operating system

D

Controlling system

E

None of the above

Correct Answer: C

Operating system is the organized collection of software that controls the overall operation of a computer.

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337.

The principle of locality of reference justifies the use of

A

reenterable

B

non reusable

C

virtual memory

D

cache memory

E

None of the above

Correct Answer: D

The principle of locality of reference justifies the use of cache memory

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338.

The register or main memory location which contains the effective address of the operand is known as

A

pointer

B

indexed register

C

special location

D

scratch pad

E

None of the above

Correct Answer: A

The register or main memory location which contains the effective address of the operand is known as pointer.

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339.

Assembly code data base is associated with

A

assembly language version of the program which is created by the code generation phase and is input to the assembly phase.

B

a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure.

C

consists of a full or partial list or the token

D

a permanent table which lists all key words and special symbols of the language in symbolic form.

E

None of the above

Correct Answer: A

Assembly code data base is associated with the assembly language version of the program which is created by the code generation phase and is input to the assembly phase.

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340.

Thrashing can be avoided if

A

the pages, belonging to the working set of the programs, are in main memory

B

the speed of CPU is increased

C

the speed of I/O processor is increased

D

all of the above

E

None of the above

Correct Answer: A

Thrashing can be avoided if the pages, belonging to the working set of the programs, are in main memory.

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