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Total Questions : 24 | Page 3 of 3 pages
Question 21. Block or Buffer caches are used to
  1.    improve disk performance
  2.    handle interrupts
  3.    increase the capacity of main memory
  4.    speed up main memory Read operations
 Discuss Question
Answer: Option D. -> speed up main memory Read operations
Question 22. Which of the following permanent database that has an entry for each terminal symbol ?
  1.    Literal table
  2.    Identifier table
  3.    Terminal table
  4.    All of above
 Discuss Question
Answer: Option C. -> Terminal table
Question 23. How many states can a process be in?
  1.    2
  2.    3
  3.    4
  4.    5
 Discuss Question
Answer: Option D. -> 5
Question 24. In compiler design ‘reducing the strength’ refers to
  1.    reducing the range of values of input variables
  2.    code optimization using cheaper machine instructions
  3.    reducing efficiency of program
  4.    All of above
 Discuss Question
Answer: Option B. -> code optimization using cheaper machine instructions

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