Ch. 3 IGCSE ICT

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| By Ruth.dsouza
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Ruth.dsouza
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Quizzes Created: 3 | Total Attempts: 4,539
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  • 1/10 Questions

    Which storage device should be used to store a high definition movie of two hours needing storage capacity of 25 GB.

    • Blu-ray disc
    • DVD
    • Hard Disk
    • CD
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About This Quiz

This Ch. 3 IGCSE ICT quiz assesses knowledge on storage devices, focusing on access types, advantages, and backup processes. It evaluates understanding of magnetic disks, tapes, and other storage media, crucial for students mastering ICT concepts.

Ch. 3 IGCSE ICT - Quiz

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  • 2. 

    Which is not the advantage of blu ray disk over DVD?

    • It uses blue laser

    • Birefringence

    • Secure encryption

    • Relatively expensive

    Correct Answer
    A. Relatively expensive
    Explanation
    The correct answer is relatively expensive. Blu-ray disks are known to be more expensive compared to DVDs. This is because the technology used in Blu-ray disks, such as the blue laser, allows for higher storage capacity and better video and audio quality. However, this advanced technology comes at a higher cost, making Blu-ray disks relatively expensive compared to DVDs.

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  • 3. 

    CD RW is the best media to distribute free software .

    • True

    • False

    Correct Answer
    A. False
    Explanation
    CD ROM should be used as CD RW is expensive .

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  • 4. 

    How does the laser wavelength  affect the storage capacity of a media?

    • Shorter the wavelength lesser the storage capacity

    • Shorter the wavelength greater the storage capacity

    • Does not matter

    Correct Answer
    A. Shorter the wavelength greater the storage capacity
    Explanation
    The laser wavelength affects the storage capacity of a media because shorter wavelengths allow for more data to be packed into a given space. This is because shorter wavelengths have a higher frequency and can therefore encode more information per unit of space. Therefore, shorter wavelengths result in greater storage capacity.

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  • 5. 

    Type of access used by Magnetic disk

    • Serial

    • Direct

    Correct Answer
    A. Direct
    Explanation
    The correct answer is "Direct" because magnetic disks allow direct access to data, meaning that any part of the disk can be accessed directly without having to read through all the preceding data. This is in contrast to serial access, where data is accessed sequentially in a linear fashion. Direct access is faster and more efficient for random access and retrieval of data from a magnetic disk.

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  • 6. 

    Magnetic tapes cannot be used for real time processing as it's data .......................... time is very slow.

    Correct Answer
    access
    Explanation
    Data transfer is fast .

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  • 7. 

    .................................... Refers to the copying of files to a different medium incase of a problem with the main secondary storage device.

    Correct Answer
    Backing up
    Explanation
    Backing up refers to the process of creating copies of files and data from a main secondary storage device to a different medium. This is done as a precautionary measure in case there is a problem with the main storage device, such as data loss, corruption, or hardware failure. By regularly backing up files, individuals and organizations can ensure that their important data is safe and can be easily restored if needed.

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  • 8. 

    Write an advantage of magnetic tape over magnetic disk.

Quiz Review Timeline (Updated): Mar 21, 2023 +

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 18, 2018
    Quiz Created by
    Ruth.dsouza
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