Computer GK Practice Question and Answer

Q:

Windows 8 is part of the ……… family of operating systems.

1114 0

  • 1
    Windows AP
    Correct
    Wrong
  • 2
    Windows NT
    Correct
    Wrong
  • 3
    Windows 8x
    Correct
    Wrong
  • 4
    Windows NET
    Correct
    Wrong
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Answer : 2. "Windows NT"
Explanation :

Windows 8 is part of the Windows NT family of operating systems. Windows NT is a family of operating systems produced by Microsoft, which includes Windows NT 3.1, Windows NT 3.5, Windows NT 4.0, Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, and Windows 10. The Windows NT architecture is known for its stability, security, and advanced features, making it suitable for both personal and enterprise use.

Q:

What is the difference between do-while and while condition?

1114 0

  • 1
    In do-while, a semicolon is used after the condition.
    Correct
    Wrong
  • 2
    Semicolon is not used in While
    Correct
    Wrong
  • 3
    While statement is after the condition
    Correct
    Wrong
  • 4
    none of the above
    Correct
    Wrong
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Answer : 4. "none of the above"
Explanation :

The key difference lies in when the loop condition is checked. In the while loop, the condition is checked before the first iteration, potentially resulting in zero iterations. In the do-while loop, the condition is checked after the first iteration, ensuring that the loop body is executed at least once.

Q:

Which components are used in LAN for Ethernet?

1112 0

  • 1
    COAX
    Correct
    Wrong
  • 2
    Fiber
    Correct
    Wrong
  • 3
    STP
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"
Explanation :

All three components—COAX (coaxial cables), Fiber (optical fiber cables), and STP (shielded twisted pair cables)—can be used in LANs for Ethernet connectivity, depending on specific network requirements and conditions. Different types of Ethernet cables, including coaxial, fiber optic, and shielded twisted pair, are used based on factors such as data transfer speed, distance, and susceptibility to electromagnetic interference.


Q:

Which of the following statements are true for firewalls?

1106 1

  • 1
    filtering network traffic
    Correct
    Wrong
  • 2
    hardware and software security
    Correct
    Wrong
  • 3
    follow the rules
    Correct
    Wrong
  • 4
    all of the above
    Correct
    Wrong
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Answer : 4. "all of the above"

Q:

When was the first operating system developed?

1105 0

  • 1
    1994
    Correct
    Wrong
  • 2
    1949
    Correct
    Wrong
  • 3
    1950
    Correct
    Wrong
  • 4
    1951
    Correct
    Wrong
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Answer : 3. "1950"

Q:

Which interface is provided to access the services of the operating system?

1097 0

  • 1
    system calls
    Correct
    Wrong
  • 2
    API
    Correct
    Wrong
  • 3
    library
    Correct
    Wrong
  • 4
    assembly instructions
    Correct
    Wrong
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Answer : 1. "system calls"

Q:

What is a drone?

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  • 1
    An unmanned aerial vehicle
    Correct
    Wrong
  • 2
    Wi-Fi technology
    Correct
    Wrong
  • 3
    Web browser
    Correct
    Wrong
  • 4
    Wireless charger
    Correct
    Wrong
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Answer : 1. "An unmanned aerial vehicle"
Explanation :

1. In technical language, the drone is an unmanned aircraft. These drones are formally known as Unmanned Aerial Vehicles (UAVs) or Unmanned Aircraft Systems (UASs). Drones are flying robots that are controlled via remote or fly automatically through software-controlled flight plans, which are embedded systems that work with the help of sensors and GPS.

Q:

Joystick is a type of ______?

1095 0

  • 1
    Input device
    Correct
    Wrong
  • 2
    memory
    Correct
    Wrong
  • 3
    Output device
    Correct
    Wrong
  • 4
    Game
    Correct
    Wrong
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Answer : 1. "Input device"
Explanation :

1. The input device is the device that provides data and control signals to the computer.

2. Major examples of input devices -

- Keyboard, Mouse, Scanner, Joystick, Microphone, Magnetic Ink Character Recognition (MICR), Optical Character Reader (OCR), Touchpad, Touch Screen, Webcam.

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