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OS MCQs - RAID - Operating System
OS MCQs - Basics - Operating System
OS MCQs - Threads - Operating System
OS MCQs - Security - Operating System
OS MCQs - Deadlocks - Operating System
OS MCQs - Processes - Operating System
OS MCQs - Semaphores - Operating System
OS MCQs - CPU Scheduling - Operating System
OS MCQs - Virtual memory - Operating System
OS MCQs - Memory Management - Operating System
  1. If a disk fails in RAID level ___ rebuilding lost data is easiest.
    2. A.
    1
    B.
    2
    C.
    3
    D.
    4

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    Workspace

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  2. A large number of disks in a system improves the rate at which data can be read or written :
    3. A.
    if the disks are operated on sequentially
    B.
    if the disks are operated on selectively
    C.
    if the disks are operated in parallel
    D.
    All of these

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    Workspace

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  3. RAID stands for :
    4. A.
    Redundant Allocation of Inexpensive Disks
    B.
    Redundant Array of Important Disks
    C.
    Redundant Allocation of Independent Disks
    D.
    Redundant Array of Independent Disks

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    Workspace

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  4. If the mean time to failure of a single disk is 100,000 hours, then the mean time to failure of some disk in an array of 100 disks will be :
    5. A.
    100 hours
    B.
    10 days
    C.
    10 hours
    D.
    1000 hours

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  5. The solution to the problem of reliability is the introduction of __________.
    6. A.
    aging
    B.
    scheduling
    C.
    redundancy
    D.
    disks

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    Workspace

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  6. The mean time to failure of a mirrored disk depends on :
    I) the mean time to failure of individual disks 
    II) the mean time to repair
    7. A.
    Only I
    B.
    Only II
    C.
    Both I and II
    D.
    Neither I nor II

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    Workspace

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  7. RAID level ______ is also known as memory style error correcting code(ECC) organization.
    8. A.
    1
    B.
    2
    C.
    3
    D.
    4

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    Workspace

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  8. RAID level 3 does not have _________ as in RAID level 1.
    9. A.
    efficiency
    B.
    enough storage space for data
    C.
    storage overhead
    D.
    time consumption overhead View Answer

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    Workspace

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