Operating System Questions

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431.

If you do not know which version of MS-DOS you are working with, which command will you use after having booted your operating system?

A

FORMAT command

B

DIR command

C

VER command

D

DISK command

E

None of the above

Correct Answer: C

In computing, ver is a command in various DOS, FlexOS, OS/2 and Microsoft Windows command line interpreters such as COMMAND.COM, cmd.exe and 4DOS/4NT. It prints the name and version of the operating system or the command shell.

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432.

A partitioned data set is most used for

A

a program or source library

B

storing program data

C

storing backup information

D

storing ISAM files

E

None of the above

Correct Answer: A

A partitioned data set is most used for a program or source library

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433.

Page-map table is

A

A data file

B

A directory

C

Used for address translation

D

All of the above

E

None of the above

Correct Answer: C

Page-map table is used for address translation

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434.

The main function of the dispatcher (the portion of the process scheduler) is

A

swapping a process to the disk

B

assigning ready process to the CPU

C

suspending some of the processes when the CPU load is high

D

bring processes from the disk to the main memory

E

None of the above

Correct Answer: B

The main function of the dispatcher is assigning ready process to the CPU

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435.

The errors that can be pointed out by the compiler are

A

Syntax errors

B

Semantic errors

C

Logical errors

D

Internal errors

E

None of the above

Correct Answer: A

The errors that can be pointed out by the compiler are 'Syntax errors'.

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436.

When a computer is first turned on or restarted, a special type of absolute loader is executed, called a

A

"Compile and Go" loader

B

Boot loader

C

Bootstrap loader

D

Relating loader

E

None of the above

Correct Answer: C

A bootstrap loader is a program that resides in the computer's EPROM, ROM, or other non-volatile memory. It is automatically executed by the processor when turning on the computer.

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437.

Which, of the following checks, cannot be carried out on the input data to a system?

A

consistency check

B

Syntax check

C

Range check

D

All of the above

E

None of the above

Correct Answer: B

Syntax check cannot be carried out on the input data to a system.

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438.

Which of the following is characteristic of an operating system?

A

resource management

B

error recovery

C

memory management

D

All the above

E

None of the above

Correct Answer: D

None.

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439.

In MS-DOS, relocatable object files and load modules have extensions

A

.OBJ and .COM or .EXE, respectively

B

.COM and .OBJ, respectively

C

.EXE and .OBJ, respectively

D

.DAS and .EXE, respectively

E

None of the above

Correct Answer: A

In MS-DOS, relocatable object files and load modules have extensions is .OBJ and .COM or .EXE, respectively. .OBJ : OBJ is a geometry definition file format first developed by Wavefront Technologies for its Advanced Visualizer animation package. The file format is open and has been adopted by other 3D graphics application vendors. .COM : The domain name com is a top-level domain in the Domain Name System of the Internet. Its name is derived from the word commercial, indicating its original intended purpose for domains registered by commercial organizations. Later, the domain opened for general purposes. .EXE : EXE is a file extension for an executable file format. An executable is a file that contains a program - that is, a particular kind of file that is capable of being executed or run as a program in the computer. An executable file can be run by a program in Microsoft DOS or Windows through a command or a double click.

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440.

The state transition initiated by the user process itself in an operating system is

A

block

B

dispatch

C

wake up

D

timer run out

E

None of the above

Correct Answer: A

The state transition initiated by the user process itself in an operating system is block.

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