Real time Operating Systems | RTOS MCQ

In this Real Time Operating System RTOS online Quiz, we will cover these topics such as Real Time Operating System, real time systems, example of real time operating system, in real time operating system, real time operating system, real time operating systems, azure rtos and so on.

1
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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2
In real time operating system
Select one:
a. all processes have the same priority
b. a task must be serviced by its deadline period
c. process scheduling can be done only once
d. kernel is not required
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3
RM Schedulable upper bound for a system with 4 tasks is
Select one:
a. 0.66
b. 0.95
c. 0.44
d. 0.76
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4
Which one of the following is a real time operating system?
Select one:
a. RTLinux
b. VxWorks
c. Windows CE
d. All of the mentioned
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5
IRIS Stand for :
Select one:
a. Increased Reward with Increased Service
b. Iney Reward with Increased Service
c. Increased Raw with Increased Service
d. None of these
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6
Earliest deadline first (EDF) is a dynamic priority scheduling algorithm used in real-time operating systems to place processes in a priority queue.
Select one:
a. True
b. False
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7
Consider the following inequalities with respect to a Real-Time system with N tasks and total utilization u
1. u < N(21/N – 1)
2. u<1
which among the following is TRUE for a RM schedulable task set.
Select one:
a. Both 1 and 2 are necessary
b. 1 is necessary and 2 is sufficient
c. 2 is necessary and 1 is sufficient
d. Both 1 and 2 are sufficient

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8
Consideration of storage, input and output devices are considered as requirement of
Select one:
a. hardware requirement
b. communication requirement
c. software requirement
d. process requirement
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9
Which of the following describes the RTOS design philiosophy best
Select one:
a. Maximize the throughput of the system
b. Maximize the processor utilization
c. Minimizing the response time
d. Response within certain stipulated time period
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10
Use of robot by the car manufacturing companies is an example of
Select one:
a. machine controlled computers
b. network controlled computers
c. applicant controlled computers
d. user controlled computers
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11
Designing of system take into considerations of
Select one:
a. hardware
b. communication system
c. operating system
d. all of above
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12
Time required to synchronous switch from the context of one thread to the context of another thread is called
Select one:
a. threads fly-back time
b. jitter
c. context switch time
d. none of the mentioned
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13
Scheduling of tasks is a very important consideration in RTOS. Which of the following best described the scheduling policy design:
Select one:
a. The scheduler must follow a pre-emptive policy
b. The scheduler must not use pre-emptive policy option
c. The scheduler must not only use pre-emptive policy options with the priority considerations.
d. The scheduler must not use pre-emptive policy option, but must employ priority consideration.
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14
soft real time operating system has ___ jitter than a Hard real time operating system
Select one:
a. less
b. more
c. equal
d. none of the mentioned
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15
System which processes the data instructions without any delay is classified as
Select one:
a. online system
b. offline system
c. instruction system
d. real time system
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16
Slack time
Select one:
a. is the amount of time left after a job if the job was started now.
b. is the amount of time left before a job if the job was started now.
c. is the amount of time left from a job if the job was started now.
d. is the amount of time left required by a job if the job was started now.
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17
The priority of a real time task :
Select one:
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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18
VxWorks is centered around
Select one:
a. wind microkernel
b. linux kernel
c. unix kernel
d. none of the mentioned
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19
Delay and Jitter :
Select one:
a. mean the same thing
b. are two completely different things
c. all of the mentioned
d. none of the mentioned
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20
if jobs have unpredictable release times, a task is termed :
Select one:
a. aperiodic
b. sporadic
c. periodic.
d. None of these
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