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CSE :: Operating System Concepts

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

  2. A.
    best fit
    B.
    first fit
    C.
    worst fit
    D.
    buddy
    E.
    None of the above

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  3. Which of the following is a block device

  4. A.
    mouse
    B.
    printer
    C.
    terminals
    D.
    disk
    E.
    None of the above

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  5. The problem of thrashing is affected significantly by:

  6. A.
    program structure
    B.
    program size
    C.
    primary-storage size
    D.
    all of the above
    E.
    None of the above

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

  8. A.
    spreadsheet
    B.
    operating environment
    C.
    timesharing
    D.
    multitasking
    E.
    None of the above

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  9. Advantage(s) of using assembly language rather than machine language is (are):

  10. A.
    It is mnemonic and easy to read.
    B.
    Addresses any symbolic, not absolute
    C.
    Introduction of data to program is easier
    D.
    all of the above
    E.
    None of the above

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  11. Which of the following is not true about the memory management?

  12. A.
    virtual memory is used only in multi-user systems
    B.
    segmentation suffers from external fragmentation
    C.
    paging suffers from internal fragmentation
    D.
    segmented memory can be paged
    E.
    None of the above

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  13. Job Control Language (JCL) statements are used to

  14. A.
    Read the input from the slow-speed card reader to the high-speed magnetic disk
    B.
    Specify, to the operating system, the beginning and end of a job in a batch
    C.
    Allocate the CPU to a job
    D.
    All of the above
    E.
    None of the above

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  15. Paging

  16. A.
    is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
    B.
    consists of those addresses that may be generated by a processor during execution of a computation.
    C.
    is a method of allocating processor time.
    D.
    allows multiple programs to reside in separate areas of core at the time.
    E.
    None of the above

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  17. Which of the following is not true about documentation?

  18. A.
    Documentation, of a system, should be as clear and direct as possible
    B.
    Documentation increases the maintenance time and cost
    C.
    Documentation gives better understanding of the problem
    D.
    All of the above
    E.
    None of the above

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  19. The system/370 assembler language

  20. A.
    allows the programmer to write base registers and displacements explicitly in the source program.
    B.
    is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain.
    C.
    allows multiple programs to reside in separate areas of core at the same time.
    D.
    is a term that refers to the control programs of an operating system.
    E.
    None of the above

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