Computer GK Practice Question and Answer

Q:

What are the monitors that display the output as an adjustment of RGB radiation?

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  • 1
    monochrome monitor
    Correct
    Wrong
  • 2
    color monitor
    Correct
    Wrong
  • 3
    gray-scale monitor
    Correct
    Wrong
  • 4
    flat panel monitor
    Correct
    Wrong
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Answer : 2. "color monitor"
Explanation :

color monitor is a type of display that can adjust and display output by manipulating the Red, Green, and Blue (RGB) radiation. In a color monitor, pixels are made up of red, green, and blue sub-pixels, and by varying the intensity of these colors, a wide range of colors can be displayed on the screen. Adjusting the intensity of RGB radiation allows the monitor to display different colors and shades, providing a full spectrum of colors to the viewer. This technology is commonly used in computer monitors, television screens, and other displays to produce vibrant and accurate color representations.


Q:

The acronym of Reusable Optical Storage is-

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  • 1
    CD
    Correct
    Wrong
  • 2
    CD-RW
    Correct
    Wrong
  • 3
    DVD
    Correct
    Wrong
  • 4
    ROM
    Correct
    Wrong
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Answer : 4. "ROM"
Explanation :

Actually, the correct acronym for Reusable Optical Storage is not ROM. The correct acronym is ROS, which stands for Reusable Optical Storage. ROS refers to a technology that allows optical storage media, such as DVDs and CDs, to be rewritten or reused multiple times for data storage purposes.

Q:

Built-in memory of computer is-

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  • 1
    ROM
    Correct
    Wrong
  • 2
    PROM
    Correct
    Wrong
  • 3
    EPROM
    Correct
    Wrong
  • 4
    RAM
    Correct
    Wrong
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Answer : 1. "ROM"
Explanation :

The built-in memory of a computer typically refers to RAM (Random Access Memory). RAM is a type of volatile memory that the computer uses to temporarily store data that is actively being used or processed. It provides fast access to the data the computer needs to perform tasks, and its content is erased when the computer is powered off.

Q:

The data remains the same after saving the file and turning off the computer-

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  • 1
    in RAM
    Correct
    Wrong
  • 2
    in secondary storage
    Correct
    Wrong
  • 3
    in the motherboard
    Correct
    Wrong
  • 4
    in primary storage
    Correct
    Wrong
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Answer : 2. "in secondary storage"
Explanation :

The data remains the same after saving the file and turning off the computer when it is stored in secondary storage. Secondary storage devices, such as hard drives, solid-state drives, and optical discs, are non-volatile storage media. This means that they retain data even when the power is turned off. Unlike volatile memory (such as RAM), which loses its content when the computer is powered down, data stored in secondary storage remains intact until it is intentionally deleted or modified.

Q:

Which of the following memory has the least access time?

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  • 1
    cache memory
    Correct
    Wrong
  • 2
    Magnetic bubble memory
    Correct
    Wrong
  • 3
    Magnetic core memory
    Correct
    Wrong
  • 4
    random access memory
    Correct
    Wrong
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Answer : 1. "cache memory"
Explanation :

Cache memory has the least access time among the options provided. Cache memory is a high-speed type of volatile computer memory that provides high-speed data storage and access to the processor. It is faster than main memory (RAM) because it is located on the CPU chip or very close to it and stores frequently accessed data and instructions. Accessing data from cache memory is much quicker compared to accessing it from RAM, making cache memory the fastest type of memory in terms of access time.

Q:

What is system software?

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  • 1
    the software of the system
    Correct
    Wrong
  • 2
    computer software
    Correct
    Wrong
  • 3
    a collection of programs designed to control and operate a computer, increasing its processing capacity
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
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Answer : 3. "a collection of programs designed to control and operate a computer, increasing its processing capacity"
Explanation :

System software is a program designed to run a computer's hardware and applications and manage its resources, such as its memory, processors, and devices. It also provides a platform for running application software, and system software is typically bundled with a computer's operating system.


Q:

Which of the following error will be handled by the operating system?

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  • 1
    power failure
    Correct
    Wrong
  • 2
    lack of paper in the printer
    Correct
    Wrong
  • 3
    connection failure in the network
    Correct
    Wrong
  • 4
    all of the above
    Correct
    Wrong
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Answer : 4. "all of the above"
Explanation :

All the mentioned errors are handled by OS. The OS is continuously monitoring all of its resources. Also, the OS is constantly detecting and correcting errors.

Q:

Which components are used in LAN for Ethernet?

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  • 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.


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