Operating System Questions

MCQ bookmark_border

491.

The advantage of a command processor running only built-in commands is:

A

flexibility to the users in running lists of commands by simply collecting them in named batch command files

B

the command set being common across different hardware configurations

C

users can create system programs and run them as commands

D

the processing is much faster than would other-wise be the case when user defined commands are used

E

None of the above

Correct Answer: B

The advantage of a command processor running only built-in commands is the command set being common across different hardware configurations.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

492.

Under multiprogramming, turnaround time for short jobs is usually _____ and that for long jobs is slightly _____.

A

lengthened; shortened

B

shortened; lengthened

C

shortened; shortened

D

lengthened; lengthened

E

None of the above

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

493.

The most common systems security method is

A

passwords

B

encryption

C

firewall

D

all of the above

E

None of the above

Correct Answer: A

The most common systems security method is passwords. Password : A password is a string of characters used for authenticating a user on a computer system. Most passwords are comprised of several characters, which can typically include letters, numbers, and most symbols, but not spaces.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

494.

Two basic types of operating systems are:

A

sequential and direct

B

batch and timesharing

C

sequential and realtime

D

batch and interactive

E

None of the above

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

495.

Daisy chain is a device for

A

connecting a number of controllers to a device

B

connecting a number of devices to a controller

C

interconnecting a number of devices to a number of controllers

D

all of the above

E

None of the above

Correct Answer: B

A daisy chain is an interconnection of computer devices, peripherals, or network nodes in series, one after another. It is the computer equivalent of a series electrical circuit.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

496.

In analyzing the compilation of PL/I program, the term "Machine independent optimization" 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: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

497.

A program

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 of the CPU

E

None of the above

Correct Answer: C

A program is a sequence of instructions

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

498.

A self-relocating program 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: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

499.

Banker's algorithm for resource allocation deals with

A

deadlock prevention

B

deadlock avoidance

C

deadlock recovery

D

mutual exclusion

E

None of the above

Correct Answer: B

The Banker algorithm, sometimes referred to as the detection algorithm, is a resource allocation and deadlock avoidance algorithm developed by Edsger Dijkstra that tests for safety by simulating the allocation of predetermined maximum possible amounts of all resources, and then makes an "s-state" check to test for possible deadlock conditions for all other pending activities, before deciding whether allocation should be allowed to continue.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

500.

Which, of the following, is true for testing and debugging?

A

Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program

B

Testing detects the syntax errors in the program while debugging corrects those errors in the program

C

Testing and debugging indicate the same thing

D

All of the above

E

None of the above

Correct Answer: A

None.

Check Answer report_problem Report forum Discussion