Dual Layer Disc Technology and Flash Memory Quiz
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Questions and Answers

What technology allows data to be recorded on two layers in optical discs?

  • I/O buffering
  • Double buffering
  • Focusing mechanism (correct)
  • Buffer management

    • Which type of flash memory is primarily used in memory cards and USB flash drives?

  • NAND type (correct)
  • EPROM type
  • NOR type
  • EEPROM type

    • What is the main advantage of using flash memory as a replacement for hard disks?

  • Greater storage capacity
  • Lower cost per gigabyte
  • High writing speed
  • Absence of mechanical limitations (correct)

    • What is the primary function of I/O buffers in a computer system?

    <p>Temporary storage for one block of data</p> Signup and view all the answers

    Which buffering strategy involves the use of two buffers to overlap processing and I/O tasks?

    <p>Double buffering</p> Signup and view all the answers

    What type of secondary storage device was developed from EEPROM and is electrically erasable and reprogrammable?

    <p>Flash memory</p> Signup and view all the answers

    What is the primary advantage of secondary storage over primary storage?

    <p>Non-volatile data retention</p> Signup and view all the answers

    Which storage device is characterized by being slow, cheap, stable, and large?

    <p>Secondary storage</p> Signup and view all the answers

    What is a significant disadvantage of main memory compared to secondary storage?

    <p>Data loss during power failures</p> Signup and view all the answers

    In terms of speed, how does secondary storage compare to main memory?

    <p>Main memory is faster</p> Signup and view all the answers

    Which of the following best describes secondary storage?

    <p>Stable, cheap, large capacity</p> Signup and view all the answers

    What characteristic of main memory makes it unsuitable for storing extremely large databases?

    <p>Small capacity</p> Signup and view all the answers

    What is the primary function of grouping related information in file storage?

    <p>To minimize the number of trips to the disk</p> Signup and view all the answers

    Which of the following is a property of files as highlighted in the text?

    <p>Data files persist after the program stops for later use</p> Signup and view all the answers

    What are Direct Access Storage Devices (DASDs) primarily composed of?

    <p>Magnetic platters called disks</p> Signup and view all the answers

    Which characteristic does NOT apply to secondary storage devices?

    <p>Secondary storage devices provide faster access to data than main memory</p> Signup and view all the answers

    What is the primary purpose of Sharability in file properties?

    <p>To allow data stored in files to be shared by many programs and users simultaneously</p> Signup and view all the answers

    In terms of size, what is a common characteristic of data files stored on secondary storage devices?

    <p>They are usually too large to fit into main memory</p> Signup and view all the answers

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