Computer GK Practice Question and Answer

Q:

Joystick is mainly used for ________.

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  • 1
    to control the sound on the screen
    Correct
    Wrong
  • 2
    Computer gaming
    Correct
    Wrong
  • 3
    Text Enter
    Correct
    Wrong
  • 4
    print text
    Correct
    Wrong
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Answer : 2. "Computer gaming"
Explanation :

1. Joystick is mainly used for computer gaming.

2. What is Joystick? It is a small device whose primary purpose is to control an appliance. It works as an input device and helps the user navigate in different directions.

3. With the joystick, you can change your device by moving it up, down, left or right. It works according to the input you give and helps you control the device by tilting or rotating it.

Q:

Which of the following is not true for for-loop?

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  • 1
    for (i=0; i
    Correct
    Wrong
  • 2
    for (int i=0; i>9; i++)
    Correct
    Wrong
  • 3
    for (i=10; i
    Correct
    Wrong
  • 4
    for (i=10; i++; i
    Correct
    Wrong
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Answer : 4. "for (i=10; i++; i"
Explanation :

Among the given statements about for loops, the one that is NOT true is that they are used to replace user input while loops. While for loops are typically used for iterations with a known count and are less likely to result in an infinite loop if used correctly, they do not specifically replace user input while loops.

Q:

What is programming?

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  • 1
    to run the program
    Correct
    Wrong
  • 2
    to make a program
    Correct
    Wrong
  • 3
    the process of writing a program
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
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Answer : 3. "the process of writing a program"

Q:

The _______ option in Windows splits the image between the computer and the projector whenever we connect the projector to the computer. In this way, you can display some scenes on your computer screen and some other scene on the projector screen.

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  • 1
    Computer only
    Correct
    Wrong
  • 2
    duplicate
    Correct
    Wrong
  • 3
    Extend
    Correct
    Wrong
  • 4
    Projector only (second screen only)
    Correct
    Wrong
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Answer : 3. "Extend"
Explanation :

1. Extend in Windows divides the image between the computer and the projector whenever we connect the projector to the computer. In this way, you can display one scene on your computer screen and another scene on the projector screen.

Q:

With which of the following is the Break statement used?

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  • 1
    if Statement
    Correct
    Wrong
  • 2
    else if Statement
    Correct
    Wrong
  • 3
    Switch Statement
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "Switch Statement"
Explanation :

The break statement is used with loops (such as for and while loops) and switch statements in programming. In loops, it is used to exit the loop prematurely, while in a switch statement, it is used to exit the switch block after executing a specific case.


Q:

Which of the following is the most difficult and secure device that LAN uses?

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  • 1
    static router
    Correct
    Wrong
  • 2
    IP Enabled Router
    Correct
    Wrong
  • 3
    dynamic router
    Correct
    Wrong
  • 4
    RIP enabled router
    Correct
    Wrong
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Answer : 1. "static router"

Q:

CPU and memory are located in:

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  • 1
    Extension Board
    Correct
    Wrong
  • 2
    Motherboard
    Correct
    Wrong
  • 3
    Storage device
    Correct
    Wrong
  • 4
    Output device
    Correct
    Wrong
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Answer : 2. "Motherboard"
Explanation :

1. The motherboard acts as a platform to connect all of the computer's components together.

2. It connects the CPU, memory, hard drive, optical drive, video card, sound card, and other ports and expansion cards directly or through cables.

3. It can be considered as the backbone of the computer.

4. The CPU is the brain of the computer, and it is responsible for executing program instructions and processing data. Memory provides short-term storage for computers,

5. It stores program instructions and data that is used by the CPU.

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.

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