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operating systems Online Quiz - 6

Description: operating systems Online Quiz - 6
Number of Questions: 20
Created by:
Tags: operating systems
Attempted 0/20 Correct 0 Score 0

What do you use to forward errors to a file ?

  1. 1> filename

  2. 2> filename

  3. 2> /dev/null

  4. &> filename


Correct Option: B

What command do you have to use to go to the parent directory?

  1. cd /up

  2. cd ..

  3. cd ~

  4. cd -


Correct Option: B

How do you get all files with on the 3rd place an r, g or i?

  1. ls ?3[rgi]*

  2. ls [rgi]

  3. ls ??[rgi]*

  4. ls **[rgi]?


Correct Option: C

How can you append the output of a command to a file?

  1. command << file

  2. command > file

  3. command >> file

  4. command <> file


Correct Option: C

Which of the following commands displays the full pathname of the directory you are positioned in?

  1. cd

  2. cd ~

  3. pwd

  4. man pwd


Correct Option: C

How to create a new file without opening it?

  1. more filename

  2. less filename

  3. cat filename

  4. touch filename


Correct Option: D

which command can show one line summary of system status ?

  1. uptime

  2. pmon

  3. top

  4. df


Correct Option: A

command for prepare text for printing with headers and page breaks ?

  1. pr

  2. lpr

  3. pico

  4. file


Correct Option: A

Which of the following is not a linux/unix based OS

  1. UBUNTU

  2. FEDORA

  3. AMIGA

  4. DEBIAN


Correct Option: C

Which of the following is not a linux/unix based OS

  1. UBUNTU

  2. FEDORA

  3. AMIGA

  4. DEBIAN


Correct Option: C
  1. Ejects the CD Immediately

  2. Nothing

  3. Displays the CD Properties

  4. Turns off Auto Run


Correct Option: D

Pressing CTRL+ALT+DEL and then "K" on a Windows terminal does what?

  1. Warm boots the Terminal

  2. Shut downs the Terminal

  3. puts the Terminal in Standby

  4. Locks the Terminal


Correct Option: D

Which of the following should you NEVER do if your system has a virus?

  1. Defragment the local drive

  2. Run System backup

  3. shutdown the system

  4. Move the files from a CD to a DVD


Correct Option: B

AI Explanation

To answer this question, you need to understand what actions can potentially worsen the situation if your system has a virus. Let's go through each option to understand why it is correct or incorrect:

Option A) Defragment the local drive - This option is incorrect because defragmenting the local drive does not directly address the issue of a virus. While defragmenting can improve system performance by organizing files and data on the hard drive, it does not remove or fix viruses.

Option B) Run System backup - This option is incorrect because running a system backup can potentially copy the virus-infected files to the backup location. If the backup is restored on a clean system, it could reintroduce the virus. It is essential to remove the virus before performing a system backup to ensure the backup is clean.

Option C) Shutdown the system - This option is incorrect because shutting down the system does not remove the virus. While a restart can temporarily disrupt the virus's activity, it will not permanently eliminate the threat. To remove the virus, you should use appropriate antivirus software or seek professional help.

Option D) Move the files from a CD to a DVD - This option is incorrect because it is unrelated to the virus issue. Moving files from a CD to a DVD does not address the presence of a virus in the system.

The correct answer is B) Run System backup. This option is incorrect because running a system backup can potentially copy the virus-infected files to the backup location, making the backup unreliable. It is essential to remove the virus before performing a system backup to ensure the backup is clean.

What happens when you enter "cmd" into the "run" line (Windows XP)?

  1. you get an error

  2. opens a Command Prompt window

  3. Nothing

  4. looks for files with "CMD" name


Correct Option: B
  1. It stores information about all of the software and hardware on the system.

  2. It stores hardware information only

  3. It stores software information only

  4. It stores system information only


Correct Option: A

In Device Manager, what does it mean when a hardware has a yellow "!" beside its name?

  1. The device is disabled

  2. The hardware is not working/not recognized

  3. The device has not yet failed, but could

  4. The hardware is set at default settings


Correct Option: B
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