Question

The Printer Event 1 P1 requests and is allocated the printer R1. 2 P1 releases the printer R1. 3 P2 requests and is allocated the disk drive R2. 4 P2 releases the disk R2. 5 P3 requests and is allocated the plotter R3. 6 P3 releases the plotter R3. Assume that the events in the accompanying narrative take place. Which of the following statements is true?

Answer 1

Which of the following statements is true?

A) There is no deadlock.

B) Event 4 caused deadlock.

C) Event 5 caused deadlock.

D) Event 6 caused deadlock.

Answer:

A) There is no deadlock

Explanation:

Deadlock is referred to as a waiting state for process jobs or events where each member of the events waits for another member of the events (itself, inclusive) before executing any command or taking any action.

In the listed series of events (1 - 6), at no point did an event waited for another before it's executed. So, it's safe to say that there's no deadlines in the listed events.