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Andrew S. Tanenbaum (OS) Edition 4 Exercise 6 Question 17 (Page No. 467)

admin asked in Operating System Oct 30, 2019

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All the trajectories in Fig. 6-8 are horizontal or vertical. Can you envision any circumstances in which diagonal trajectories are also possible?

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admin asked in Operating System Oct 30, 2019

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Andrew S. Tanenbaum (OS) Edition 4 Exercise 6 Question 27 (Page No. 467)
One way to eliminate circular wait is to have rule saying that a process is entitled only to a single resource at any moment. Give an example to show that this restriction is unacceptable in many cases.

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admin asked in Operating System Oct 30, 2019

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Andrew S. Tanenbaum (OS) Edition 4 Exercise 6 Question 26 (Page No. 467)
A system has four processes and five allocatable resources. The current allocation and maximum needs are as follows: What is the smallest value of x for which this is a safe state?

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Andrew S. Tanenbaum (OS) Edition 4 Exercise 6 Question 25 (Page No. 467)
The banker’s algorithm is being run in a system with $m$ resource classes and $n$ processes. In the limit of large $m$ and $n,$ the number of operations that must be performed to check a state for safety is proportional to $m^{a} n^{b}.$ What are the values of $a$ and $b?$

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admin asked in Operating System Oct 30, 2019

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Andrew S. Tanenbaum (OS) Edition 4 Exercise 6 Question 24 (Page No. 467)
Suppose that process $A$ in Fig. 6-12 requests the last tape drive. Does this action lead to a deadlock?

admin asked in Operating System Oct 30, 2019

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