Online MCQ Assignment Answer

QN1: The term operating system means

1. A set of program which control computer working

2. The way a computer operates works

3. Conversion of high level language into machine code

4. The way a floppy disk drive operates

Answer

Answer: 2. The way a computer operates works

QN2: Multiprogramming was made possible by

1. i/o units that operate independently of the CPU

2. operating system

3. both (a) and (b)

4. neither (a) nor (b)

Answer

Answer: 3. both (a) and (b)

QN3: Two basic type of operating system are:

1. Sequential and direct

2. Batch and time sharing

3. Sequential and real time

4. None of the above

Answer

Answer: 4. None of the above

QN4: Remote computing services involve the use of timesharing and

1. Multiprocessing

2. Interactive processing

3. Batch processing

4. Real time processing

Answer

Answer: 2. Interactive processing

QN5: Which of the following is not a part of operating system?

1. Supervisor

2. Performance monitor

3. job-control program

4. i/o control program

Answer

Answer: 2. Performance monitor

QN6: In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of register?

1. Absolute mode

2. Indirect mode

3. Immediate mode

4. Index mode

Answer

Answer: 4. Index mode

QN7: Moving process from main memory to disk is called

1. Scheduling

2. Caching

3. Swapping

4. Spooling

Answer

Answer: 3. Swapping

QN8: Producer consumer problem can be solved using

1. Semaphores

2. Event counters

3. Monitors

4. All the above

Answer

Answer: 4. All the above

QN9: Operating system is

1. A collection of hardware components

2. A collection of i/o devices

3. A collection of software routine

4. All the above

Answer

Answer: 3. A collection of software routine

QN10: Which of the following is a type of system software used on microcomputer?

1. MS-DOS

2. PC-DOS

3. unix

4. All of the above

Answer

Answer: 4. All of the above

QN11: What is the operating system used by Macintosh computers?

1. system 7.0

2. AU/X

3. Unix

4. Either(a) or (b)

Answer

Answer: 3. Unix

QN12: What does the “X” stand for in OS X?

1. extreme

2. Extensible

3. extra

4. ten

Answer

Answer: 2. Extensible

QN13: The longest method of conversion

1. direct

2. parallel

3. pilot

4. phased

Answer

Answer: 1. direct

QN14: A channel for communication across a boundary between two or more subsystems is known as

1. interface

2. actigram

3. walk through

4. data path

Answer

Answer: 2. actigram

QN15: DOS was the first widely-installed operating system for personal computers. What does DOS stand for?

1. Digital Operating System

2. Disk Operating System

3. Desktop Operating System

4. It’s an abbreviation of the word “doors.”

Answer

Answer: 2. Disk Operating System

QN16: Which of the following represents processor activities, methods and procedures in a data flow diagram?

1. datagram

2. actigram

3. feed back

4. none of the above

Answer

Answer: 3. feed back

QN17: A statement by statement description of a procedure is detailed in a

1. written narrative

2. procedure log

3. record layout

4. systems flowcharts

Answer

Answer: 1. written narrative

QN18: What year was the first version of Windows introduced?

1. 1978

2. 1985

3. 1991

Answer

Answer: 2. 1985

QN19: The operating system, along with its coordinating program, and the hardware that performs logic operations and manages data movement all combine to make up the___. What is it?

Answer

Answer: Software

QN20: The operating system of a computer serves as a software interface between the user and

1. Hardware

2. Peripheral

3. Memory

4. Screen

Answer

Answer: 1. Hardware

QN21: Which of the following is not a control statement?

1. SELECT CASE

2. single-alternative block IF

3. double-alternative block IF

4. END

Answer

Answer: 1. SELECT CASE

QN22: …statements allow the programmer to change the flow of program execution.

1. Inquiry-and-response

2. PRINT

3. Control

4. Flowcharting

Answer

Answer: 3. Control

QN23: The primary job of operating system of a computer is to

1. Command resources

2. Manage resources

3. Provide utilities

4. Be user friendly

Answer

Answer: 1. Command resources

QN24: A ___ displays a list of program functions from which the user can choose one.

1. collating sequence

2. Boolean operator

3. menu

4. relational operator

Answer

Answer: 3. menu

QN25: Which is a permanent database in a general model of compiler?

1. Literal Table

2. Identifier Table

3. Terminal Table

4. Source code

Answer

Answer: 3. Terminal Table

QN26: The functions(s) of scheduler is (are)

1. It selects which ready process is to be run next

2. It specifies the time slice

3. It waiting for an event to occur before continuing execution

4. both (a) and (b)

Answer

Answer: 4. both (a) and (b)

QN27: What is the name given to the process of initializing a microcomputer with its operating system?

1. Cold booting

2. Booting

3. warm booting

4. Boot recording

Answer

Answer: 2. Booting

QN28: What is the name given to the organized collection of software that controls the overall operations of a computer?

1. Working system

2. Peripheral

3. Operating system

4. Controlling system

Answer

Answer: 3. Operating system

QN29: What is the name of the operating system that reads in terms of actual time?

1. Batch system

2. Quick response system

3. Real time system

4. Time sharing system

Answer

Answer: 3. Real time system

QN30: What is the name given to the software which can be legally compiled and often used for free

1. Shareware program

2. Public domain program

3. Firmware program

4. Mindware

Answer

Answer: 2. Public domain program

QN31: Overlay is

1. a part of an operating system

2. a single contiguous memory used for running long prg by swapping

3. overloading the system with many user files

4. a single memory location

Answer

Answer: 1. a part of an operating system

QN32: The only state transition initiated by user process itself is

1. wakeup

2. block

3. dispatch

4. sleep

Answer

Answer: 2. block

QN33: Which scheduling algorithm gives minimum average waiting time?

1. FCFS

2. SJF

3. Round Robin

4. Priority

Answer

Answer: 4. Priority

QN34: Page fault occurs when

1. the page is not in main memory

2. the page is in main memory

3. the page is corrupted by application software

4. we try to divide a number by zero

Answer

Answer: 1. the page is not in main memory

QN35: Which of these is real time system?

1. payroll processing

2. aircraft control

3. library

4. automobile system

Answer

Answer: 2. aircraft control

QN36: Semaphores are used to solve

1. process synchronization

2. race condition

3. parallel execution

4. none of above

Answer

Answer: 1. process synchronization

QN37: Which of these is single user OS?

1. MS DOS

2. UNIX

3. OS/2

4. LISP

Answer

Answer: 1. MS DOS

QN38: Dirty bit is used to show

1. page with corrupted data

2. wrong page in memory

3. page modified after being loaded in cache memory

4. page that is less frequently accessed

Answer

Answer: 3. page modified after being loaded in cache memory

QN39: The size of virtual memory depends on

1. size of address bus

2. size of main memory

3. size of data bus

4. none of above

Answer

Answer: 3. size of data bus

QN40: Which of these calls never returns an error?

1. fork

2. getpid

3. open

4. ready

Answer

Answer: 1. fork