Q31. Which connector is used to connect external monitors to a computer?
a) VGA
b) USB
c) Ethernet
d) Audio jack
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Correct Answer: a) VGA
Explanation: VGA (Video Graphics Array) connectors are used to connect external monitors to computers, providing a video signal for display purposes.
Q32. What does the acronym PSU stand for in computer hardware?
a) Power Supply Unit
b) Processing Storage Unit
c) Peripheral System Unit
d) Primary System Unit
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Correct Answer: a) Power Supply Unit
Explanation: PSU stands for Power Supply Unit, which is responsible for converting electrical power from an outlet into the correct voltages needed by a computer’s components.
Q33. Which component is responsible for generating the video output in a computer?
a) CPU
b) RAM
c) Graphics card
d) Motherboard
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Correct Answer: c) Graphics card
Explanation: The graphics card, or GPU, is responsible for generating and rendering video output to the monitor. It processes graphical data and handles complex visual tasks.
Q34. What is the function of an optical drive in a computer system?
a) To manage network connections
b) To process data
c) To read and write data on optical discs
d) To increase system memory
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Correct Answer: c) To read and write data on optical discs
Explanation: An optical drive reads and writes data to optical discs such as CDs, DVDs, and Blu-rays, enabling the storage and retrieval of data.
Q35. Which of the following is an example of an input device?
a) Printer
b) Monitor
c) Keyboard
d) Speaker
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Correct Answer: c) Keyboard
Explanation: A keyboard is an input device used to enter data and commands into a computer. It allows users to interact with the computer by typing.
Q36. What does the acronym SATA stand for in computer hardware?
a) Serial Advanced Technology Attachment
b) Serial Access Transfer Array
c) Synchronous Advanced Transmission Architecture
d) System Access Transfer Assembly
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Correct Answer: a) Serial Advanced Technology Attachment
Explanation: SATA stands for Serial Advanced Technology Attachment. It is an interface used to connect storage devices like hard drives and SSDs to the motherboard.
Q37. What type of connector is used for a network cable?
a) RJ-45
b) USB
c) HDMI
d) VGA
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Correct Answer: a) RJ-45
Explanation: RJ-45 connectors are used for Ethernet cables, which are commonly used to connect computers to a network.
Q38. Which component is responsible for the computer’s clock speed?
a) CPU
b) RAM
c) Hard Drive
d) Motherboard
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Correct Answer: a) CPU
Explanation: The CPU’s clock speed determines how many cycles it can execute per second, affecting the overall speed and performance of the computer.
Q39. What type of device is a USB flash drive?
a) Input device
b) Output device
c) Storage device
d) Network device
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Correct Answer: c) Storage device
Explanation: A USB flash drive is a portable storage device used to store and transfer data between computers. It uses flash memory and connects via a USB port.
Q40. What is the primary use of a network switch?
a) To connect multiple devices within a network
b) To store data
c) To manage power distribution
d) To provide video output
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Correct Answer: a) To connect multiple devices within a network
Explanation: A network switch connects multiple devices on a network, allowing them to communicate with each other efficiently by directing data to the appropriate destination.