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  1. In internal fragmentation, memory is internal to a partition and :
  2. A.
    is being used
    B.
    is not being used
    C.
    is always used
    D.
    None of these

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  3. A solution to the problem of external fragmentation is :
  4. A.
    compaction
    B.
    larger memory space
    C.
    smaller memory space
    D.
    None of these

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  5. Another solution to the problem of external fragmentation problem is to :
  6. A.
    permit the logical address space of a process to be noncontiguous
    B.
    permit smaller processes to be allocated memory at last
    C.
    permit larger processes to be allocated memory at last
    D.
    All of these

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  7. If relocation is static and is done at assembly or load time, compaction _________.
  8. A.
    cannot be done
    B.
    must be done
    C.
    must not be done
    D.
    can be done

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  9. The disadvantage of moving all process to one end of memory and all holes to the other direction, producing one large hole of available memory is :
  10. A.
    the cost incurred
    B.
    the memory used
    C.
    the CPU used
    D.
    All of these

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  11. __________ is generally faster than _________ and _________.
  12. A.
    first fit, best fit, worst fit
    B.
    best fit, first fit, worst fit
    C.
    worst fit, best fit, first fit
    D.
    None of these

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  13. External fragmentation exists when :
  14. A.
    enough total memory exists to satisfy a request but it is not contiguous
    B.
    the total memory is insufficient to satisfy a request
    C.
    a request cannot be satisfied even when the total memory is free
    D.
    None of these

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  15. External fragmentation will not occur when :
  16. A.
    first fit is used
    B.
    best fit is used
    C.
    worst fit is used
    D.
    no matter which algorithm is used, it will always occur

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  17. Sometimes the overhead of keeping track of a hole might be :
  18. A.
    larger than the memory
    B.
    larger than the hole itself
    C.
    very small
    D.
    All of these

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  19. When the memory allocated to a process is slightly larger than the process, then :
  20. A.
    internal fragmentation occurs
    B.
    external fragmentation occurs
    C.
    both a and b
    D.
    neither a nor b

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