Operating system mcqs multi threading models

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Operating system mcqs multi threading models

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the Many to One model, if a thread makes a blocking system call .....
A
the entire process will be blocked
B
a part of the process will stay blocked, with the rest running
C
the entire process will run
D
none of the mentioned
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The model in which one user-level thread is mapped to many kernel level threads is called .....
A
Many to One model
B
One to Many model
C
Many to Many model
D
One to One model
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The One to One model allows .....
A
increased concurrency
B
decreased concurrency
C
increased or decreased concurrency
D
concurrency equivalent to other models
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the Many to One model, multiple threads are unable to run in parallel on multiprocessors because of .....
A
only one thread can access the kernel at a time
B
many user threads have access to just one kernel thread
C
there is only one kernel thread
D
none of the mentioned
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is the drawback of the One to One Model?
A
increased concurrency provided by this model
B
decreased concurrency provided by this model
C
creating so many threads at once can crash the system
D
creating a user thread requires creating the corresponding kernel thread
There are 5 questions to complete.