Question 1

Effective release time of a job without the predecessors is equal to its given …………….

Accepted Answer

A) release time 
B) Deadline 
C) both A &B 
D) None of these 
A) release time 
B) Deadline 
C) both A &B 
D) None of these A

Question 2

Effective release time of a job with predecessors is equal to the maximum value among, its…………and…………..

Accepted Answer

A) deadline time and effective release time of all of the predecessors. 
B) release time and effective release time of all of the predecessors. 
C) both A &B 
D) None of these 
A) deadline time and effective release time of all of the predecessors. 
B) release time and effective release time of all of the predecessors. 
C) both A &B 
D) None of these B

Question 3

LRT schedules all the job backward from …………………... of all the job in priority driven manner to the current time.

Accepted Answer

A) Earliest deadline 
B) latest deadline 
C) latest releasetime 
D) None of these 
A) Earliest deadline 
B) latest deadline 
C) latest releasetime 
D) None of these B

Question 4

What is TRUE for an aperiodic task and a sporadic task:

Accepted Answer

A) A sporadic task and an aperiodic task are one and the same thing 
B) An aperiodic task occurs randomly and has hard real time requirements 
C) A sporadic task occurs randomly and has hard real time requirements 
D) A sporadic task becomes aperiodic when it is executed with a periodic task 
A) A sporadic task and an aperiodic task are one and the same thing 
B) An aperiodic task occurs randomly and has hard real time requirements 
C) A sporadic task occurs randomly and has hard real time requirements 
D) A sporadic task becomes aperiodic when it is executed with a periodic task

Question 5

In on-line scheduling, scheduler make the schedule ……………………... that will be released in future.

Accepted Answer

A) with the knowledge of the jobs 
B) without the knowledge of the jobs 
C) both A &B 
D) None of these 
A) with the knowledge of the jobs 
B) without the knowledge of the jobs 
C) both A &B 
D) None of these

Question 6

Effective deadline of job without the successor is equal to its given ……………

Accepted Answer

A) release time 
B) Deadline 
C) both A &B 
D) None of these 
A) release time 
B) Deadline 
C) both A &B 
D) None of these

Question 7

What does the utilization rate tells us? Select one:

Accepted Answer

A) If it is larger or equal to 1, the system is not feasible 
B) If it is smaller than 1, the system is feasible 
C) If it is exactly 1, the system is feasible 
D) if there is no context switch overhead If it is 0, the system is absolutely feasible 
A) If it is larger or equal to 1, the system is not feasible 
B) If it is smaller than 1, the system is feasible 
C) If it is exactly 1, the system is feasible 
D) if there is no context switch overhead If it is 0, the system is absolutely feasible

Question 8

Effective deadline of job with successor is equal tothe minimum value among its deadlines and …………………………

Accepted Answer

A) only deadline of job 
B) Release time of all the successors 
C) deadlines of all the successors 
D) None of these 
A) only deadline of job 
B) Release time of all the successors 
C) deadlines of all the successors 
D) None of these

Question 9

Scheduling of tasks is a very important consideration in RTOS. Which of the following best described the scheduling policy design:

Accepted Answer

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. 
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.

Question 10

What is True for a task vis-à-vis a process?

Accepted Answer

A) Tasks are complex compared to processes 
B) Tasks represent only a single sequence of instructions 
C) Processes can spawn threads but tasks cannot spawn tasks Tasks and processes are one and the same thing 
D) Tasks and processes are one and the same thing 
A) Tasks are complex compared to processes 
B) Tasks represent only a single sequence of instructions 
C) Processes can spawn threads but tasks cannot spawn tasks Tasks and processes are one and the same thing 
D) Tasks and processes are one and the same thing

Question 11

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

Accepted Answer

A) i, ii and iii only 
B) ii, iii and iv only 
C) i, ii and iv only 
D) All i, ii, iii and iv 
A) i, ii and iii only 
B) ii, iii and iv only 
C) i, ii and iv only 
D) All i, ii, iii and iv

Question 12

In which scheduling certain amount of CPU time is allocated to each process ?

Accepted Answer

A) earliest deadline first scheduling 
B) roportional share scheduling 
C) equal share scheduling 
D) none of the mentioned 
A) earliest deadline first scheduling 
B) roportional share scheduling 
C) equal share scheduling 
D) none of the mentioned

Question 13

Tasks whose execution would begin randomly and within the interval of arrival times of consecutive tasks is known as

Accepted Answer

A) Periodic Task 
B) Aperiodic Task 
C) Sporadic Task 
D) none of the mentioned 
A) Periodic Task 
B) Aperiodic Task 
C) Sporadic Task 
D) none of the mentioned

Question 14

if jobs have unpredictable release times, a task is termed :

Accepted Answer

A) aperiodic 
B) sporadic periodic. 
C) both A &B 
D) None of these 
A) aperiodic 
B) sporadic periodic. 
C) both A &B 
D) None of these

Effective release time of a job without the predecessors is equal to its given …………….

Effective release time of a job with predecessors is equal to the maximum value among, its…………and…………..

LRT schedules all the job backward from …………………... of all the job in priority driven manner to the current time.

What is TRUE for an aperiodic task and a sporadic task:

In on-line scheduling, scheduler make the schedule ……………………... that will be released in future.

Effective deadline of job without the successor is equal to its given ……………

What does the utilization rate tells us? Select one:

Effective deadline of job with successor is equal tothe minimum value among its deadlines and …………………………

Scheduling of tasks is a very important consideration in RTOS. Which of the following best described the scheduling policy design:

What is True for a task vis-à-vis a process?

In which scheduling certain amount of CPU time is allocated to each process ?

Tasks whose execution would begin randomly and within the interval of arrival times of consecutive tasks is known as

if jobs have unpredictable release times, a task is termed :

Chip Design, Protocols, and Communication

Embedded Systems and Communication Protocols

Computer Bus and IO Operations

ISA, Communication Modes, Wlan, Serial Protocols, ARM Processors, and Real-Time Systems

Real Time Operating Systems and Scheduling Techniques

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Exam 6: Real-Time Operating System Scheduling and Job Management

Effective release time of a job without the predecessors is equal to its given …………….

Effective release time of a job with predecessors is equal to the maximum value among, its…………and…………..

LRT schedules all the job backward from …………………... of all the job in priority driven manner to the current time.

What is TRUE for an aperiodic task and a sporadic task:

In on-line scheduling, scheduler make the schedule ……………………... that will be released in future.

Effective deadline of job without the successor is equal to its given ……………

What does the utilization rate tells us? Select one:

Effective deadline of job with successor is equal tothe minimum value among its deadlines and …………………………

Scheduling of tasks is a very important consideration in RTOS. Which of the following best described the scheduling policy design:

What is True for a task vis-à-vis a process?

In which scheduling certain amount of CPU time is allocated to each process ?

Tasks whose execution would begin randomly and within the interval of arrival times of consecutive tasks is known as

if jobs have unpredictable release times, a task is termed :

Chip Design, Protocols, and Communication

Embedded Systems and Communication Protocols

Computer Bus and IO Operations

ISA, Communication Modes, Wlan, Serial Protocols, ARM Processors, and Real-Time Systems

Real Time Operating Systems and Scheduling Techniques

Filters