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  • Question
  • Which of the following filename extension suggests that the file is a backup copy of another file?


  • Options
  • A. TXT
  • B. COM
  • C. BAS
  • D. BAK
  • E. None of the above

  • Correct Answer
  • BAK 


  • Operating Systems Concepts problems


    Search Results


    • 1. The principles of structured programming forbid the use of

    • Options
    • A. WHILE-DO
    • B. GOTO
    • C. IF-THEN-ELSE
    • D. DO-WHILE
    • E. None of the above
    • Discuss
    • 2. Information in a memory that is no longer valid or wanted is known as

    • Options
    • A. non-volatile
    • B. volatile
    • C. surplus
    • D. garbage
    • E. None of the above
    • Discuss
    • 3. Which of the following is a measure to test how good or bad a modular design is

    • Options
    • A. Module strength
    • B. Module coupling
    • C. Static analysis
    • D. All of the above
    • E. None of the above
    • Discuss
    • 4. Which policy replace a page if it is not in the favoured subset of a process's pages?

    • Options
    • A. FIFO
    • B. LRU
    • C. LFU
    • D. Working set
    • E. None of the above
    • Discuss
    • 5. The instruction register

    • Options
    • A. is a hardware memory device which denotes the location of the current instruction being executed.
    • B. is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
    • C. contains the address of the memory location that is to be read from or stored into.
    • D. contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
    • E. None of the above
    • Discuss
    • 6. A sequence of instructions, in a computer language, to get the desired result, is known as

    • Options
    • A. Algorithm
    • B. Decision Table
    • C. Program
    • D. All of the above
    • E. None of the above
    • Discuss
    • 7. An instruction in a programming language that is replaced by a sequence of instructions prior to assembly or compiling is known as

    • Options
    • A. procedure name
    • B. macro
    • C. label
    • D. literal
    • E. None of the above
    • Discuss
    • 8. A program

    • Options
    • A. is a device that performs a sequence of operations specified by instructions in memory.
    • B. is the device where information is stored
    • C. is a sequence of instructions
    • D. is typically characterized by interactive processing and time of the CPU's time to allow quick response to each user.
    • E. None of the above
    • Discuss
    • 9. Banker's algorithm for resource allocation deals with

    • Options
    • A. deadlock prevention
    • B. deadlock avoidance
    • C. deadlock recovery
    • D. mutual exclusion
    • E. None of the above
    • Discuss
    • 10. The primary purpose of an operating system is to:

    • Options
    • A. make computer easier to use
    • B. keep system programmers employed
    • C. make the most efficient use of the hardware
    • D. allow people to sue the computers
    • E. None of the above
    • Discuss


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