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Computer Aptitude

OPERATING SYSTEM MCQs

Total Questions : 622 | Page 4 of 63 pages
Question 31. Supervisor state is
  1.    never used
  2.    entered by programs when they enter the processor
  3.    required to perform any I/O
  4.    only allowed to the operating system
  5.    None of the above
 Discuss Question
Answer: Option D. -> only allowed to the operating system
Question 32. Which of the following instruction steps, would be written within the diamond-shaped box, of a flowchart?
  1.    S = B - C
  2.    IS A
  3.    PRINT A
  4.    DATA X,4Z
  5.    None of the above
 Discuss Question
Answer: Option B. -> IS A
Question 33. Which of the following statements is false?
  1.    the technique of storage compaction involves moving all occupied areas of storage to one end or other of main storage
  2.    compaction does not involve relocation of programs
  3.    compaction is also know as garbage collection
  4.    the system must stop everything while it performs the compaction
  5.    None of the above
 Discuss Question
Answer: Option B. -> compaction does not involve relocation of programs
Question 34. Interprocess communication
  1.    is required for all processes
  2.    is usually done via disk drives
  3.    is never necessary,
  4.    allows processes to synchronize activity
  5.    None of the above
 Discuss Question
Answer: Option D. -> allows processes to synchronize activity
Question 35. Which of the following functions is(are) performed by the loader
  1.    allocate space in memory for the programs and resolve symbolic references between object decks
  2.    adjust all address dependent locations, such as address constants, to correspond to the allocated space.
  3.    physically place the machine instructions and data into memory.
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 36. User-Friendly Systems are:
  1.    required for object-oriented programming
  2.    easy to develop
  3.    common among traditional mainframe operating systems
  4.    becoming more common
  5.    None of the above
 Discuss Question
Answer: Option D. -> becoming more common
Question 37. While running DOS on a PC, which command would be used to duplicate the entire diskette?
  1.    COPY
  2.    DISKCOPY
  3.    CHKDSK
  4.    TYPE
  5.    None of the above
 Discuss Question
Answer: Option B. -> DISKCOPY
Question 38. Which of the following addressing modes, facilitates access to an operand whose location is defined relative to the beginning of the data structure in which it appears?
  1.    ascending
  2.    sorting
  3.    index
  4.    indirect
  5.    None of the above
 Discuss Question
Answer: Option C. -> index
Question 39. Which of the following rules out the use of GO TO?
  1.    Flowchart
  2.    HIPO-DIAGRAMS
  3.    Nassi-Shneiderman diagram
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option C. -> Nassi-Shneiderman diagram
Question 40. Memory
  1.    is a device that performs a sequence of operations specified by instructions in memory.
  2.    is the device where information is stored
  3.    is a sequence of instructions
  4.    is typically characterized by interactive processing and time-slicing of the CPU
  5.    None of the above
 Discuss Question
Answer: Option B. -> is the device where information is stored

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