Top 150+ Solved Embedded Real Time Operating System MCQ Questions Answer
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. a) remain the same throughout
b. b) keep varying from time to time
c. c) may or may not be change
d. d) none of the mentioned
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. a) Yes
b. b) No
c. c) Maybe
d. d) None of the mentioned
Q. Using EDF algorithm practically, it is impossible to achieve 100 percent utilization due to __________
a. a) the cost of context switching
b. b) interrupt handling
c. c) power consumption
d. d) all of the mentioned
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. a) allocate 30 shares to it
b. b) deny entry to D in the system
c. c) all of the mentioned
d. d) none of the mentioned
Q. . In a real time system the computer results ____________
a. a) must be produced within a specific deadline period
b. b) may be produced at any time
c. c) may be correct
d. d) all of the mentioned
Q. In a safety critical system, incorrect operation ____________
a. a) does not affect much
b. b) causes minor problems
c. c) causes major and serious problems
d. d) none of the mentioned
Q. . The amount of memory in a real time system is generally ____________
a. a) less compared to PCs
b. b) high compared to PCs
c. c) same as in PCs
d. d) they do not have any memory
Q. What is the priority of a real time task?
a. a) must degrade over time
b. b) must not degrade over time
c. c) may degrade over time
d. d) none of the mentioned
Q. Memory management units ____________
a. a) increase the cost of the system
b. b) increase the power consumption of the system
c. c) increase the time required to complete an operation
d. d) all of the mentioned
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. a) Yes
b. b) No
c. c) Maybe
d. d) None of the mentioned
Q. Type of processor in which single task of a particular application is process is termed as Select one:
a. real time processor
b. b. dedicated processor
c. applicant processor
d. one task processor
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