0

operating systems Online Quiz - 14

Description: operating systems Online Quiz - 14
Number of Questions: 20
Created by:
Tags: operating systems
Attempted 0/20 Correct 0 Score 0

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?

  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.


Correct Option: A

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

  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


Correct Option: D

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

  1. tar xvf /dev/st0

  2. tar rvf /dev/st0

  3. tar cvf /dev/ttyS0

  4. tar xvf /dev/ttyS0


Correct Option: A

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

  1. ps and top

  2. df and top

  3. du and df

  4. ls and df


Correct Option: A

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

  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.


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

  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.


Correct Option: A

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

  1. MS

  2. DOS

  3. Ms-DOS

  4. 6.22


Correct Option: D

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

  1. Date command

  2. Ver command

  3. Disk command

  4. Format command


Correct Option: A

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

  1. Ver

  2. Format

  3. Fat

  4. Chkdsk


Correct Option: B

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

  1. Command.com, io.sys

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

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

  4. Chkdsk.exe


Correct Option: C

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

  1. Bak

  2. Bas

  3. Com

  4. Txt


Correct Option: A

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

  1. Copy

  2. Diskcopy

  3. Chkdsk

  4. Format


Correct Option: B

Which command lists the contents of current directory of a disk

  1. Copy

  2. Tree

  3. Cd

  4. Dir


Correct Option: D

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

  1. Copy

  2. Ver

  3. Time

  4. Format


Correct Option: C

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

  1. ntldr

  2. boot.ini

  3. grub

  4. none of there


Correct Option: C

what do u mean by core2duo

  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


Correct Option: C

WHO DEVELOPED INDIA'S 1ST SUPER COMPUTER

  1. CRAY

  2. C-DAC

  3. IBM

  4. HP


Correct Option: B
- Hide questions