Embedded Real Time Operating System MCQs with answers Page - 7

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Q. In a safety critical system, incorrect operation ____________

  • (A) does not affect much
  • (B) causes minor problems
  • (C) causes major and serious problems
  • (D) none of the mentioned

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Q. The amount of memory in a real time system is generally ____________

  • (A) less compared to PCs
  • (B) high compared to PCs
  • (C) same as in PCs
  • (D) they do not have any memory

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Q. What is the priority of a real time task?

  • (A) must degrade over time
  • (B) must not degrade over time
  • (C) may degrade over time
  • (D) none of the mentioned

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Q. Memory management units ____________

  • (A) increase the cost of the system
  • (B) increase the power consumption of the system
  • (C) increase the time required to complete an operation
  • (D) all 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 processes be scheduled without missing the deadlines?

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

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Q. Type of processor in which single task of a particular application is process is termed as Select one:

  • (A) real time processor
  • (B) dedicated processor
  • (C) applicant processor
  • (D) one task processor

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Q. Calculate the idle time of the processor with 3 periodic tasks whose execution times are given as 1, 1, and 3, and their periods are 3, 4, and 10. Select one: 17% 12% 88%

  • (A) 0.17
  • (B) 0.12
  • (C) 0.88
  • (D) 1

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Q. In rate monotonic scheduling algorithm Select one:

  • (A) shorter duration job has higher priority,
  • (B) longer duration job has higher priority
  • (C) priority does not depend on the duration of the job
  • (D) none of the mentioned

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Q. What does an IC that initiate or enable the data transfer on bus can be regarded as, in accordance to the I2c protocol specifications?

  • (A) bus slaves
  • (B) bus master
  • (C) bus drivers
  • (D) bus data carriers

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Q. ______ is a technology that allows telephone calls to be made over computer networks like the Internet.

  • (A) voip
  • (B) gsm
  • (C) modem
  • (D) cdma

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