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  1. Which of the following is a type of systems software used on microcomputers?

    2. A.

     MS-DOS
    B.

     PC-DOS
    C.

     Unix
    D.

     All of the above
    E.

     None of the above

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  2. The working set theory of programming behaviour of processes running within an operating system involves

    3. A.

     the collection of pages that a process accesses
    B.

     disk scheduling mechanisms
    C.

     coalescing holes in memory
    D.

     assigning the CPU to processes
    E.

     None of the above

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  3. Operating system is

    4. A.

     A collection of hardware components
    B.

     A collection of input-output devices
    C.

     A collection of software routines
    D.

     All of the above
    E.

     None of the above

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  4. A file organization component of a VSAM file is:

    5. A.

     relative record data set
    B.

     keyed sequential data set
    C.

     entry sequential data set
    D.

     all of the above
    E.

     None of the above

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  5. What is the name given to the software which can be legally compiled and often used for free?

    6. A.

     Shareware program
    B.

     Public domain program
    C.

     Firmware program
    D.

     Mindware
    E.

     None of the above

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  6. The SJF algorithm executes first the job

    7. A.

     that last entered the queue
    B.

     that first entered the queue
    C.

     that has been in the queue the longest
    D.

     with the least processor needs
    E.

     None of the above

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  7. In which of the storage placement strategies a program is placed in the largest available hole in the main memory?

    8. A.

     best fit
    B.

     first fit
    C.

     worst fit
    D.

     buddy
    E.

     None of the above

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  8. Which of the following is a block device

    9. A.

     mouse
    B.

     printer
    C.

     terminals
    D.

     disk
    E.

     None of the above

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  9. The problem of thrashing is affected significantly by:

    10. A.

     program structure
    B.

     program size
    C.

     primary-storage size
    D.

     all of the above
    E.

     None of the above

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  10. Which of the following software types is used to simplify using systems software?

    11. A.

     spreadsheet
    B.

     operating environment
    C.

     timesharing
    D.

     multitasking
    E.

     None of the above

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