Real time Operating Systems | MCQ
Question 1
IRIS Stand for :
Select one:
Increased Reward with Increased Service
Iney Reward with Increased Service
Increased Raw with Increased Service
None of these
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Your answer is correct.
The correct answer is: Increased Reward with Increased Service
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Question 2
System which processes data instructions without any delay is classified as
Select one:
real time system
online system
offline system
instruction system
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Your answer is correct.
The correct answer is: real time system
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Question 3
Time difference between the completion time and the deadline of a job is
Select one:
Response Time
Tardiness
Lateness
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Your answer is correct.
The correct answer is: Tardiness
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Question 4
Embedded system does not contain _________.
Select one:
Sensors
Actuators
Microcontrollers
None of these
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Your answer is correct.
The correct answer is: None of these
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Question 5
What is the hyper period of 3 periodic tasks with periods 3,4 and 10
Select one:
60
17
120
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Your answer is correct.
The correct answer is: 60
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Question 6
Time gap in-between release time of the job and the time when it completes is
Select one:
Response Time
Turn around time
Rotation Time
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Your answer is incorrect.
The correct answer is: Response Time
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Question 7
What are the risks and challenges that we should be aware of when it comes to the Internet of Everything :
Select one:
Privacy.
Security
Network congestion
Electricity consumption at the peaks
All of these
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Your answer is correct.
The correct answer is: Electricity consumption at the peaks
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Question 8
what is M2M :
Select one:
M2M is basically communication between a machine or a device with a remote computer
M2M is basically communication between a machine or a Mobile netowrk
M2M is basically communication between a machine or a Man
None of these
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Your answer is correct.
The correct answer is: M2M is basically communication between a machine or a device with a remote computer
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Question 9
What is TRUE for an aperiodic task and a sporadic task:
Select one:
A sporadic task and an aperiodic task are one and the same thing
An aperiodic task occurs randomly and has hard real time requirements
A sporadic task occurs randomly and has hard real time requirements
A sporadic task becomes aperiodic when it is executed with a periodic task
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Your answer is correct.
The correct answer is: A sporadic task occurs randomly and has hard real time requirements
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Question 10
In real time operating system
Select one:
all processes have the same priority
a task must be serviced by its deadline period
process scheduling can be done only once
kernel is not required
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Your answer is correct.
The correct answer is: a task must be serviced by its deadline period
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Question 11
Identify the odd one out:
Select one:
Periodic Task
Aperiodic
Sporadic Tasks
Non-periodic
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Your answer is incorrect.
The correct answer is: Non-periodic
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Question 12
In rate monotonic scheduling algorithm
Select one:
shorter duration job has higher priority
longer duration job has higher priority
priority does not depend on the duration of the job
none of the mentioned
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Your answer is correct.
The correct answer is: shorter duration job has higher priority
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Question 13
Number of Real Time tasks in a system are
Select one:
Aperiodic – 49, Periodic – 2 and Sporadic – 19
Aperiodic – 58, Periodic – 10 and Sporadic – 2
Aperiodic – 44, Periodic – 16 and Sporadic – 10
Aperiodic – 35, Periodic – 25 and Sporadic – 10
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Your answer is incorrect.
The correct answer is: Aperiodic – 49, Periodic – 2 and Sporadic – 19
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Question 14
The time T between any two consecutive sensor reading is called
Select one:
Sampling Period
Response Time
Turn around time
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Your answer is correct.
The correct answer is: Sampling Period
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Question 15
State whether the following statements are True or False for the features of real time operating system.
i) fast process or thread switch
ii) ability to respond to external interrupts quickly.
iii) minimization of intervals during which interrupts are enabled.
iv) preemptive scheduling based on priority
Select one:
i, ii and iii only
ii, iii and iv only
i, ii and iv only
All i, ii, iii and iv
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Your answer is correct.
The correct answer is: i, ii and iv only
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Question 16
Cheddar is written in
Select one:
Ada
Perl
Python
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Your answer is correct.
The correct answer is: Ada
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Question 17
Tasks whose execution would begin randomly and within the interval of arrival times of consecutive tasks is known as
Select one:
Periodic Task
Aperiodic Task
Sporadic Task
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Your answer is correct.
The correct answer is: Sporadic Task
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Question 18
What is the top M2M acronym stands for:
Select one:
The acronym M2M application stands for Machine to Man applications
The acronym M2M application stands for Mobile to Mobile applications
The acronym M2M application stands for Machine to Machine applications
None of these
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Your answer is correct.
The correct answer is: The acronym M2M application stands for Machine to Machine applications
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Question 19
What is True for a task vis-à-vis a process?
Select one:
Tasks are complex compared to processes
Tasks represent only a single sequence of instructions
Processes can spawn threads but tasks cannot spawn tasks
Tasks and processes are one and the same thing
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Your answer is correct.
The correct answer is: Tasks represent only a single sequence of instructions
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Question 20
In real time operating system
Select one:
all processes have the same priority
a task must be serviced by its deadline period
process scheduling can be done only once
kernel is not required
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Your answer is correct.
The correct answer is: a task must be serviced by its deadline period
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