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Applied Gate Full Length Test

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1 1 vote
Let S be the binary semaphore variable initialized to zero. If no blocked processes exist in the system then consider the execution of the following signal (V), wait (P) operation. The number of blocked processes at the end are _________.

                                         4 P, 6 V, 9 P, 13 V, 14 P

2 Answers

1 1 vote
is 13 the answer?

4P means 1 process in cs and 3 blocked

6V unblocks all the blocked process

9P = 8 blocked, 1 in cs

13 V similarly unblocks,

finally 14P means 1 block in cs and rest 13 blocked??
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