operating systems Online Quiz - 46

Description: operating systems Online Quiz - 46
Number of Questions: 20
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Tags: operating systems
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Before you define the Virus Scan Server when you are defining RFC destination what type of RFC destination will you create ?

  1. L

  2. X

  3. I

  4. T

Correct Option: D

Before you switch the operation mode manually in the system ?

  1. restart the instance

  2. change parameter rdisp/btctime

  3. simulate

  4. close all the user sessions

Correct Option: C
  1. at least 2GB

  2. at least 3GB

  3. at least 1GB

  4. Two times of main Memory

Correct Option: A

Which of the following commands is not a filter

  1. man

  2. pg

  3. cat

  4. head

Correct Option: A

What will the following command do? echo *

  1. Display all the files under current directory

  2. displcay the pid of the last background job

  3. display the pid of the current background job

  4. display syntax error

Correct Option: A

Trap is a

  1. Synchronous interrupt

  2. Asynchronous interrupt

  3. Hardware interrupt

  4. Operating System interrupt

Correct Option: A
  1. Pre-Emptive Scheduling

  2. Non Pre-Emptive Scheduling

  3. Deadline Scheduling

  4. Fair-Share Sceduling

Correct Option: B

In Memory Management, FRAGMENTATION problem is caused by creation of

  1. Large number of processes

  2. Large number of free holes

  3. Large number of waiting processes

  4. None of the above

Correct Option: B

System mask indicates whether the CPU wishes to

  1. accept interrupts from a specific channel

  2. reject all interrupts

  3. reject selected interrupts

  4. reject all interrupts from selected channels

Correct Option: A

Race around condition occurs when

  1. two processes unknowingly wait for resources that are held by each other

  2. two processes wait for the same resource

  3. all resources are shared

  4. two processes share the same shared resource

Correct Option: B

Dirty bit for a page in a page table

  1. helps avoid unnecessary writes on a paging device

  2. helps maintain LRU information

  3. allows only read on a page

  4. None of the above

Correct Option: A


  1. reduces page I/O

  2. decreases the degree of multiprogramming

  3. implies excessive page I/O

  4. improves system performance

Correct Option: C
  1. which should run in a certain specified amount of time

  2. which avoids deadlocks

  3. where shared resources are accessed

  4. which must be enclosed by a pair of semaphore operations

Correct Option: C

What are the 2 modes of Natural programming ?

  1. Hierarchical

  2. Structured

  3. object oriented

  4. Reporting

Correct Option: B,D

What is the codename for Windows Vista?

  1. Aero

  2. Longhorn

  3. WinFx

  4. Whidbey

Correct Option: B

What was the codename for Windows 95 OS?

  1. Mantis

  2. NAS 3.0

  3. Sparta

  4. Chicago

Correct Option: D
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