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operating systems Online Quiz - 70

Description: operating systems Online Quiz - 70
Number of Questions: 20
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Tags: operating systems
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If the device file for your CD-ROM is missing, (the "ioscan -fn" command shows the H/W path exists but there are no device files) what command could you run, without rebooting the system, to create the device files?

technology operating systems

  1. mkcd -a

  2. insf -e

  3. lssf -e

  4. cdfs -a

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Correct Option: B

Which step is required before adding a new disk to a volume group?

technology operating systems

  1. create a physical volume

  2. extend the logical volume

  3. create a filesystem

  4. extend the filesystem

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Correct Option: A

What is the command for action "Change Keyboard Mapping"

technology operating systems

  1. CHGKDBMAP

  2. CHGKBDMAP

  3. CHGKMAP

  4. CHGKBD

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Correct Option: B

What is the command to work with Message Files

technology operating systems

  1. WRKMSGQ

  2. WRKMSG

  3. WRKMSGF

  4. WRKMSGD

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Correct Option: C

Which command can send break message to user profile and NOT the workstation?

technology operating systems

  1. QEZSNDMG

  2. SNDBRKMSG

  3. SNDPGMMSG

  4. SNDMSG

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Correct Option: A

What is the command to work with Libraries using Programming Development Manager.

technology operating systems

  1. WRKOBJPDM

  2. WRKMBRPDM

  3. WRKLIPDM

  4. WRKLIBPDM

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Correct Option: D

Which of the following will come under the types of files ?

technology operating systems

  1. Regular Files

  2. Directory Files

  3. Mode Files

  4. Special Files

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Correct Option: A,B,D

Job Control is one of the feature of the UNIX ?

technology operating systems

  1. True

  2. False

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Correct Option: A

Korn Shell is the super set of which Shell ?

technology operating systems

  1. C shell

  2. Bourne Shell

  3. Bash Shell

  4. B Shell

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Correct Option: B

Which one of the following is the heart of the UNIX OS ?

technology operating systems

  1. Shell

  2. Kernel

  3. OS

  4. Pipes

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Correct Option: B

Which one of the following is the interface between user and OS ?

technology operating systems

  1. kernel

  2. OS

  3. Filters

  4. Shell

Show answer
Correct Option: D

AI Explanation

To answer this question, you need to understand the roles and functions of different components in a computer system.

Option A) Kernel - The kernel is the core component of the operating system that manages system resources and provides essential services. It acts as a bridge between software and hardware, but it is not the direct interface between the user and the operating system.

Option B) OS - The operating system (OS) is a software program that manages computer hardware and software resources. It provides a platform for running applications and acts as an intermediary between the user and the hardware. However, it is not the direct interface between the user and the operating system.

Option C) Filters - The term "filters" is not typically associated with the interface between the user and the operating system. Filters are commonly used in various contexts, such as data processing and signal processing, but they are not directly related to the user-OS interface.

Option D) Shell - The correct answer is D) Shell. The shell is the interface between the user and the operating system. It provides a command-line or graphical user interface (GUI) through which users can interact with the operating system. The shell interprets user commands and executes them by interacting with the OS.

The correct answer is D) Shell. This option is correct because the shell acts as the interface between the user and the operating system, providing a means for users to interact with the OS through commands or a graphical interface.

Which one of the following is to list all the files column wise ?

technology operating systems

  1. -C

  2. -l

  3. -c

  4. -lc

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Correct Option: C

Whish command is used to find the name of the UNIX System ?

technology operating systems

  1. Pipes

  2. Uname

  3. Inode

  4. Filters

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Correct Option: B

Which of the following is used to check out the print queue ?

technology operating systems

  1. pq

  2. lqp

  3. lpr

  4. lpq

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Correct Option: D

Which command is to search for the information in a file or files ?

technology operating systems

  1. grep

  2. awk

  3. sed

  4. vi

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Correct Option: A

What is the Octal representation of the write permission ?

technology operating systems

  1. 1

  2. 4

  3. 2

  4. 0

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Correct Option: C

Which command is used to find the default permission ?

technology operating systems

  1. chmode

  2. Umask

  3. chmode -r

  4. chmode -l

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Correct Option: B

While in command mode you press "a" : what happens?

technology operating systems

  1. This is an invalid command

  2. The editor goes in to insert mode and start inserting text after the current cursor location

  3. The editor searches for charater "a" in the open file

  4. The editor gives a beep sound

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Correct Option: B

You have made changes to a file and want to quit vi without saving these changes. what command will you use?

technology operating systems

  1. :wq

  2. x

  3. q!

  4. w!

Show answer
Correct Option: C

You want to repalce "lion" with "tiger" in your field at all location in the vi editor.You use

technology operating systems

  1. /s/lion/tiger

  2. s/lion/tiger

  3. s/lion/tiger/g

  4. s/tiger/lion/g

Show answer
Correct Option: A
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