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OS MCQs - Memory Management - Operating System
  1. The operating system is :
    2. A.
    in the low memory
    B.
    in the high memory
    C.
    either a or b (depending on the location of interrupt vector)
    D.
    None of these

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  2. In contiguous memory allocation :
    3. A.
    each process is contained in a single contiguous section of memory
    B.
    all processes are contained in a single contiguous section of memory
    C.
    the memory space is contiguous
    D.
    None of these

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  3. The relocation register helps in :
    4. A.
    providing more address space to processes
    B.
    a different address space to processes
    C.
    to protect the address spaces of processes
    D.
    None of these

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  4. With relocation and limit registers, each logical address must be _______ the limit register.
    5. A.
    less than
    B.
    equal to
    C.
    greater than
    D.
    None of these

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  5. The operating system and the other processes are protected from being modified by an already running process because :
    6. A.
    they are in different memory spaces
    B.
    they are in different logical addresses
    C.
    they have a protection algorithm
    D.
    every address generated by the CPU is being checked against the relocation and limit registers

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  6. Transient operating system code is code that :
    7. A.
    is not easily accessible
    B.
    comes and goes as needed
    C.
    stays in the memory always
    D.
    never enters the memory space

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  7. Using transient code, _______ the size of the operating system during program execution.
    8. A.
    increases
    B.
    decreases
    C.
    changes
    D.
    maintains

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  8. When memory is divided into several fixed sized partitions, each partition may contain ________.
    9. A.
    exactly one process
    B.
    atleast one process
    C.
    multiple processes at once
    D.
    None of these

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  9. In fixed sized partition, the degree of multiprogramming is bounded by ___________.
    10. A.
    the number of partitions
    B.
    the CPU utilization
    C.
    the memory size
    D.
    All of these

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  10. The first fit, best fit and worst fit are strategies to select a ______.
    11. A.
    process from a queue to put in memory
    B.
    processor to run the next process
    C.
    free hole from a set of available holes
    D.
    All of these

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