
Deadlocks in Operating Systems Quiz
Authored by Pushpendra Pateriya
Computers
University
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which initialization of the semaphores would print the sequence BCABCABCA.......?
S1 = 1, S2 = 0, S3 = 0
S1 = 1, S2 = 1, S3 = 1
S1 = 0, S2 = 0, S3 = 1
S1 = 0, S2 = 1, S3 = 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is/are TRUE with respect to deadlocks?
Deadlocks can occur in a system with multiple processes.
Deadlocks can always be avoided.
Deadlocks cannot occur in single-threaded applications.
Deadlocks can be resolved by resource preemption.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the largest value of K that will always avoid deadlock in a system with 3 processes sharing 4 instances of the same resource type?
1
3
2
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a system with 6 identical resources and N processes competing for them, which value of N could lead to a deadlock?
3
6
5
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the maximum value of n for a system with 6 tape drives to be deadlock free if each process may need 2 drives?
5
4
3
2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following outcomes is/are possible when threads T1 and T2 execute concurrently?
x = 2, x = 1
x = 1, x = 2
x = 1, x = 1
x = 2, x = 2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If five threads execute the function parop concurrently, which of the following program behaviors is/are possible?
Counter increments to 4
Counter increments to 5
Counter increments to 2
Counter increments to 3
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