Embedded Real Time Operating System MCQs with answers Page - 6

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Q. In a real time system the computer results ____________

  • (A) must be produced within a specific deadline period
  • (B) may be produced at any time
  • (C) may be correct
  • (D) all of the mentioned

A

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Q. . If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares.B will have ______ percent of the total processor time.

  • (A) 20
  • (B) 15
  • (C) 50
  • (D) none of the mentioned

A

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Q. Earliest deadline first algorithm assigns priorities according to ____________

  • (A) periods
  • (B) deadlines
  • (C) burst times
  • (D) none of the mentioned

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Q. A process P1 has a period of 50 and a CPU burst of t1 = 25, P2 has a period of 80 and a CPU burst of 35. The total CPU utilization is ____________

  • (A) 0.90
  • (B) 0.74
  • (C) 0.94
  • (D) 0.80

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Q. A process P1 has a period of 50 and a CPU burst of t1 = 25, P2 has a period of 80 and a CPU burst of 35., the priorities of P1 and P2 are?

  • (A) remain the same throughout
  • (B) keep varying from time to time
  • (C) may or may not be change
  • (D) none of the mentioned

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Q. A process P1 has a period of 50 and a CPU burst of t1 = 25, P2 has a period of 80 and a CPU burst of 35., can the two processes be scheduled using the EDF algorithm without missing their respective deadlines?

  • (A) Yes
  • (B) No
  • (C) Maybe
  • (D) None of the mentioned

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Q. Using EDF algorithm practically, it is impossible to achieve 100 percent utilization due to __________

  • (A) the cost of context switching
  • (B) interrupt handling
  • (C) power consumption
  • (D) all of the mentioned

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Q. If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares.A will have ______ percent of the total processor time.

  • (A) 20
  • (B) 15
  • (C) 50
  • (D) none of the mentioned

A

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Q. If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares.C will have ______ percent of the total processor time.

  • (A) 20
  • (B) 15
  • (C) 50
  • (D) none of the mentioned

A

Admin • 833K Points
Coach

Q. If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares.If a new process D requested 30 shares, the admission controller would __________

  • (A) allocate 30 shares to it
  • (B) deny entry to D in the system
  • (C) all of the mentioned
  • (D) none of the mentioned

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