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Computer Aptitude

OPERATING SYSTEM MCQs

Total Questions : 622 | Page 5 of 63 pages
Question 41. A system program that sets up an executable program in main memory ready for execution is
  1.    assembler
  2.    linker
  3.    loader
  4.    compiler
  5.    None of the above
 Discuss Question
Answer: Option C. -> loader
Question 42. Which of the following are loaded into main memory when the computer is booted?
  1.    internal command instructions
  2.    external command instructions
  3.    utility programs
  4.    word processing instructions
  5.    None of the above
 Discuss Question
Answer: Option A. -> internal command instructions
Question 43. The FIFO algorithm
  1.    executes first the job that last entered the queue
  2.    executes first the job that first entered the queue
  3.    execute first the job that has been in the queue the longest
  4.    executes first the job with the least processor needs
  5.    None of the above
 Discuss Question
Answer: Option B. -> executes first the job that first entered the queue
Question 44. What is the name given to the organized collection of software that controls the overall operation of a computer?
  1.    Working system
  2.    Peripheral system
  3.    Operating system
  4.    Controlling system
  5.    None of the above
 Discuss Question
Answer: Option C. -> Operating system
Question 45. The principle of locality of reference justifies the use of
  1.    reenterable
  2.    non reusable
  3.    virtual memory
  4.    cache memory
  5.    None of the above
 Discuss Question
Answer: Option D. -> cache memory
Question 46. The register or main memory location which contains the effective address of the operand is known as
  1.    pointer
  2.    indexed register
  3.    special location
  4.    scratch pad
  5.    None of the above
 Discuss Question
Answer: Option A. -> pointer
Question 47. Assembly code data base is associated with
  1.    assembly language version of the program which is created by the code generation phase and is input to the assembly phase.
  2.    a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure.
  3.    consists of a full or partial list or the token
  4.    a permanent table which lists all key words and special symbols of the language in symbolic form.
  5.    None of the above
 Discuss Question
Answer: Option A. -> assembly language version of the program which is created by the code generation phase and is input to the assembly phase.
Question 48. Thrashing can be avoided if
  1.    the pages, belonging to the working set of the programs, are in main memory
  2.    the speed of CPU is increased
  3.    the speed of I/O processor is increased
  4.    all of the above
  5.    None of the above
 Discuss Question
Answer: Option A. -> the pages, belonging to the working set of the programs, are in main memory
Question 49. Resolution of externally defined symbols is performed by
  1.    Linker
  2.    Loader
  3.    Compiler
  4.    Assembler
  5.    None of the above
 Discuss Question
Answer: Option A. -> Linker
Question 50. System generation:
  1.    is always quite simple
  2.    is always very difficult
  3.    varies in difficulty between systems
  4.    requires extensive tools to be understandable
  5.    None of the above
 Discuss Question
Answer: Option C. -> varies in difficulty between systems

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