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operating systems Online Quiz - 14

Description: operating systems Online Quiz - 14
Number of Questions: 20
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Tags: operating systems
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In response to the df command, the system reports a Use% of 98% for the filesystem mounted on /home. Which one of the following best describes the significance of this information?

technology operating systems

  1. Files on /home are consuming 98% of the /home filesystem

  2. File read/write activity on /home is consuming 98% of system I/O capacity.

  3. Files on /home are consuming 98% of the physical disk

  4. Inodes on /home are nearly exhausted.

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Correct Option: A

Which one of the following is an accurate statement regarding this regular expression?[^1-8A-Za-z]

technology operating systems

  1. It matches characters other than letters or numbers

  2. t matches all letters and numbers except 9.

  3. It matches all letters and numbers

  4. It matches 9, 0, and other nonletter and nonnumber characters

Show answer
Correct Option: D

Which one of the following commands verbosely extracts files from a tar archive on a magnetic tape device?
technology operating systems

  1. tar xvf /dev/st0

  2. tar rvf /dev/st0

  3. tar cvf /dev/ttyS0

  4. tar xvf /dev/ttyS0

Show answer
Correct Option: A

What two commands display the status of processes on a Linux system?
technology operating systems

  1. ps and top

  2. df and top

  3. du and df

  4. ls and df

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Correct Option: A

What is contained in directory /sbin? Select the single best answer.
technology operating systems

  1. Commands of interest mainly to the administrator.

  2. Commands of interest to all system users.

  3. Commands needed in the event of a system emergency of interest mainly to the administrator.

  4. Libraries needed in the event of an emergency.

Show answer
Correct Option: C

For text file named guest_list containing 12 lines if we execute the following command. What is the result?# split -4 guest_list gl
technology operating systems

  1. The lines of guest_list are evenly divided among new files glaa, glab, and glac

  2. The first four columns in the text are written to new files aagl, abgl, acgl, and adgl.

  3. The lines of guest_list are evenly divided among new files aagl, abgl, and acgl.

  4. The first four columns in the text are written to new files glaa, glab, glac, and glad.

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Correct Option: A

In MS-Dos 6.22, which part identifies the product uniquely
technology operating systems

  1. MS

  2. DOS

  3. Ms-DOS

  4. 6.22

Show answer
Correct Option: D

In Ms-Dos what command you will use to display system date?
technology operating systems

  1. Date command

  2. Ver command

  3. Disk command

  4. Format command

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Correct Option: A

Which command divides the surface of the blank disk into sectors and assign a unique address to each one
technology operating systems

  1. Ver

  2. Format

  3. Fat

  4. Chkdsk

Show answer
Correct Option: B

Each time you turn on your computer, it will check on the control file
technology operating systems

  1. Command.com, io.sys

  2. Command.com, date.com, dir.com

  3. Command.com, io.sys, msdos.sys

  4. Chkdsk.exe

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Correct Option: C

Which of the following extensions suggest that the file is a backup copy
technology operating systems

  1. Bak

  2. Bas

  3. Com

  4. Txt

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Correct Option: A

While working with Ms-Dos which command transfers a specific file from one disk to another?

technology operating systems

  1. Copy

  2. Diskcopy

  3. Time

  4. Rename

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Correct Option: A

If you need to duplicate the entire disk, which command will you use?

technology operating systems

  1. Copy

  2. Diskcopy

  3. Chkdsk

  4. Format

Show answer
Correct Option: B

Which command lists the contents of current directory of a disk

technology operating systems

  1. Copy

  2. Tree

  3. Cd

  4. Dir

Show answer
Correct Option: D

If you don’t know the current time, which command will you use to display
technology operating systems

  1. Copy

  2. Ver

  3. Time

  4. Format

Show answer
Correct Option: C

Only filenames and extensions are to be displayed in wide format, which command you’ll use?

technology operating systems

  1. Dir/w

  2. Dir a:

  3. Dir/s

  4. Dir/b

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Correct Option: A

If there is Two Operating System in a System (i.e window XP & REDHAT)then what will be the boot loader of that system.
technology operating systems

  1. ntldr

  2. boot.ini

  3. grub

  4. none of there

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Correct Option: C

what do u mean by core2duo
technology operating systems

  1. 2 core unit

  2. 4 core unit

  3. 2 core unit & 2 image of core unit

  4. 1 core unit & 3 image core unit

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Correct Option: C

can we create a folder name con in window xp
technology operating systems

  1. True

  2. False

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Correct Option: B

WHO DEVELOPED INDIA'S 1ST SUPER COMPUTER
technology operating systems

  1. CRAY

  2. C-DAC

  3. IBM

  4. HP

Show answer
Correct Option: B
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