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Operating System Concepts - Section 1
Operating System Concepts - Section 2
Operating System Concepts - Section 3
Operating System Concepts - Section 4
Operating System Concepts - Section 5

  1. The Register - to - Register (RR) instructions

    2. A.
    have both their operands in the main store.
    B.
    which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, except in the case of store operation when it is also written into the specified storage location.
    C.
    which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.
    D.
    all of the above
    E.
    None of the above

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  2. A page fault

    3. A.
    is an error is a specific page
    B.
    occurs when a program accesses a page of memory
    C.
    is an access to a page not currently in memory
    D.
    is a reference to a page belonging to another program
    E.
    None of the above

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  3. An algorithm is best described as

    4. A.
    A computer language
    B.
    A step by step procedure for solving a problem
    C.
    A branch of mathematics
    D.
    All of the above
    E.
    None of the above

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  4. The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as

    5. A.
    multiprogramming
    B.
    spooling
    C.
    caching
    D.
    virtual programming
    E.
    None of the above

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  5. Block caches or buffer caches are used

    6. A.
    to improve disk performance
    B.
    to handle interrupts
    C.
    to increase the capacity of the main memory
    D.
    to speed up main memory read operation
    E.
    None of the above

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  6. Which of the following statements is false?

    7. A.
    a small page size causes large page tables
    B.
    internal fragmentation is increased with small pages
    C.
    a large page size causes instructions and data that will not be referenced brought into primary storage
    D.
    I/O transfers are more efficient with large pages
    E.
    None of the above

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  7. The action of parsing the source program into the proper syntactic classes is known as

    8. A.
    syntax analysis
    B.
    lexical analysis
    C.
    interpretation analysis
    D.
    general syntax analysis
    E.
    None of the above

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  8. Which, of the following is not true about the description of a decision table?

    9. A.
    A decision table is easy to modify
    B.
    A decision table is directly understood by the computer
    C.
    A decision table is easy to understand
    D.
    All of the above
    E.
    None of the above

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  9. Trojan-Horse programs

    10. A.
    are legitimate programs that allow unauthorized access
    B.
    do not usually work
    C.
    are hidden programs that do not show up on the system
    D.
    usually are immediately discovered
    E.
    None of the above

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  10. When did IBM release the first version of disk operating system DOS version 1.0?

    11. A.
    1981
    B.
    1982
    C.
    1983
    D.
    1984
    E.
    None of the above

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