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Operating System MCQ For WBJECA ( SET - 9)

WBJECA MCQ FOR NEW SYLLABUS

Operating System MCQ ( SET - 9)

O.S MCQ

  1. The size of a process is limited to the size of _________ .

    1. External storage
    2. Secondary storage
    3. Physical memory
    4. non of the above
    Answer: C
    Explantion: None

  2. In contiguous memory allocation :

    1. the memory space is contiguous
    2. each process is contained in a single contiguous section of memory
    3. all processes are contained in a single contiguous section of memory
    4. none of the above
    Answer: B
    Explantion: None

  3. Physical memory is broken into fixed-sized blocks called _____________.

    1. Backing Store
    2. Frames
    3. Pages
    4. none of the above
    Answer: B
    Explantion: None.

  4. In internal fragmentation, memory is internal to a partition and ____________________.

    1. is always used
    2. is being uded
    3. is not being used
    4. all of above
    Answer: C
    Explantion: None

  5. The major part of swap time is _______________ time.

    1. Execution
    2. Waiting
    3. Transfer
    4. none of the above
    Answer: C
    Explantion: None

  6. Every address generated by the CPU is divided into parts:

    1. page number & page offset
    2. page offset & frame bit
    3. frame offset & page offser
    4. frame offset & page number
    Answer: A
    Explantion: None

  7. The percentage of times a page number is found in the Translation look-aside buffer (TLB) is known as :

    1. hit ratio
    2. miss ratio
    3. miss percent
    4. hit percent
    Answer: A
    Explantion: None

  8. When the memory allocated to a process is slightly larger than the process, then :

    1. external fragmentation occurs
    2. internal fragmentation occurs
    3. Both (A) and (B)
    4. none of above
    Answer: B
    Explantion: None

  9. Which one of the following is the address generated by CPU ?

    1. Logical Address
    2. Physical Address
    3. Absoute Address
    4. none of the above
    Answer: A
    Explantion: None

  10. 10

    With paging there is no ______________ fragmentation.

    1. External
    2. Internal
    3. both of (A) and (B)
    4. either type of
    Answer: B
    Explantion: None

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