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operating systems Online Quiz - 46

Description: operating systems Online Quiz - 46
Number of Questions: 20
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Tags: operating systems
Attempted 0/20 Correct 0 Score 0

Activate the delta index if the main index reaches 100,000 to 1,000,000 documents or

  1. 1GB

  2. 2GB

  3. 500MB

  4. 200MB


Correct Option: C

At what status you can kill the Background job

  1. Released

  2. Active

  3. Finished

  4. Cancelled


Correct Option: A

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

How much Swap memory should be in the system ?

  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

Whats the command to kill the last background job?

  1. kill $!

  2. kill $0

  3. kill $#

  4. kill -9 $1


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

FIFO scheduling is

  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

Thrashing

  1. reduces page I/O

  2. decreases the degree of multiprogramming

  3. implies excessive page I/O

  4. improves system performance


Correct Option: C

When the result of a computation depends on the speed of the processes involved, there is said to be

  1. Cycle Stealing

  2. Race condition

  3. Time lock

  4. Deadlock


Correct Option: B

A critical section is a program segment

  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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