Computer Knowledge Practice Question and Answer

Q:

Which among the following is the latest version of Microsoft Windows?

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  • 1
    Microsoft Office 365
    Correct
    Wrong
  • 2
    Windows 9.1
    Correct
    Wrong
  • 3
    Windows 8.1
    Correct
    Wrong
  • 4
    Windows 10
    Correct
    Wrong
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Answer : 4. "Windows 10"

Q:

Which of the following are valid search engines?

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  • 1
    Twitter, Facebook, Google Plus
    Correct
    Wrong
  • 2
    Google, Bing, Yahoo
    Correct
    Wrong
  • 3
    Web Spider, Indexing, Decision Engine
    Correct
    Wrong
  • 4
    none of the above
    Correct
    Wrong
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Answer : 2. "Google, Bing, Yahoo"

Q:

Which of the following is not a type of Cyber Threat?

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  • 1
    Hunting
    Correct
    Wrong
  • 2
    Fishing
    Correct
    Wrong
  • 3
    Spy
    Correct
    Wrong
  • 4
    Hacking
    Correct
    Wrong
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Answer : 1. "Hunting"
Explanation :

There are many types of cyber threats, including:

1. Spam Email: Spam email is a type of cyber threat which is done by sending unsolicited emails. Spam emails are often used to spread advertisements, scams, or viruses.

2. Hacking: Hacking is a type of cyber threat that involves gaining unauthorized access to a computer system or network. Hackers often use hacking to steal data, damage systems, or intercept transactions.

3. Phishing: Phishing is a type of cyber threat in which victims are tricked into providing their personal information, such as passwords or credit card numbers. Phishing attacks are often carried out via email, social media, or websites.

4. Viruses: Viruses are a type of malware that can infect a computer system and damage data, slow down the system, or even disable it. Viruses often spread through spam emails, infected files, or physical media.

5. Worm: A worm is a type of malware that can copy itself from a computer system and spread from one system to another. Worms often spread via email, infected files, or physical media.

6. Denial-of-Service (DoS) attacks: DoS attacks are a type of cyber threat that is used to disable a website or service. DoS attacks are often carried out using large amounts of traffic or resources.

7. Load Ballast Attacks: Load ballast attacks are a type of DoS attack in which a large amount of data is sent to a website or service. Load ballast attacks are often carried out to disable a website or service.

8. Human-based attacks: Human-based attacks are a type of cyberattack that target people. Human-based attacks can include phishing, social engineering, and cyberpsychology.

9. Physical Attacks: Physical attacks are a type of cyberattack that targets the physical components of a computer system or network. Physical attacks could include data centre fires or power outages.

Q:

Why is clrscer() used?

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  • 1
    to erase
    Correct
    Wrong
  • 2
    to clear the message from the screen
    Correct
    Wrong
  • 3
    to store
    Correct
    Wrong
  • 4
    for all of the above
    Correct
    Wrong
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Answer : 2. "to clear the message from the screen"
Explanation :

The clrscr in C is a built-in function that is used for clearing the screen of the console output during the execution of the C program. This function is defined in the conio. h header file. We need to include the “conio.

Q:

The place in a computer, where the OS, application programs and data in current use are kept so that they can be quickly reached by the computer processor, it is called _________? 

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  • 1
    TRASH
    Correct
    Wrong
  • 2
    Access control list
    Correct
    Wrong
  • 3
    ROM
    Correct
    Wrong
  • 4
    RAM
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 4. "RAM "

Q:

What does the comment give for a cell entry to show on the screen?

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  • 1
    Comment
    Correct
    Wrong
  • 2
    Indicator
    Correct
    Wrong
  • 3
    Picture
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "Comment"
Explanation :

The comment given for a cell entry displays the following information on the screen:

1. Comment text: The comment text is written by the person who is rating the item. This text may express the person's opinion or reaction to CellEntry.

2. Comment Rating: Comment rating is a numerical value that reflects the quality of the cell entry. Ratings usually range from 1 to 5, where 1 is the lowest and 5 is the highest.

3. Comment time: Comment time is the time when the comment was written.

Q:

Which of the following is a special key ? 

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  • 1
    Ctrl
    Correct
    Wrong
  • 2
    Esc
    Correct
    Wrong
  • 3
    Insert
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 4. "All of these"

Q:

An example of an analog computer is-

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  • 1
    desktop
    Correct
    Wrong
  • 2
    laptop
    Correct
    Wrong
  • 3
    Speedometer
    Correct
    Wrong
  • 4
    Tablet
    Correct
    Wrong
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Answer : 3. "Speedometer"

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