Question

1) Consider a system with 3 resources (A, B, C) in quantity (7, 6, 7). The Banker's Algorithm is used to allocate resources and it has the following SAFE state: Process Allocation Max Need Available: A B C A B C A B C A B C 3 2 1 P0 1 0 2 2 1 6 1 1 4 P1 0 1 0 2 2 1 2 1 1 P2 3 1 2 6 6 5 3 5 3 P3 0 2 2 0 5 3 0 3 1 a) Justify why the current state is safe. b) If P0 requests an additional unit of resource B, will it be allowed? Justify your answer.

          1) Consider a system with 3 resources (A, B, C) in quantity (7, 6, 7). The Banker's
Algorithm is used to allocate resources and it has the following SAFE state:
Process Allocation Max Need Available: A B C
A B C A B C A B C 3 2 1
P0 1 0 2 2 1 6 1 1 4
P1 0 1 0 2 2 1 2 1 1
P2 3 1 2 6 6 5 3 5 3
P3 0 2 2 0 5 3 0 3 1
a) Justify why the current state is safe.
b) If P0 requests an additional unit of resource B, will it be allowed? Justify your answer.

1) Consider a system with 3 resources (A, B, C) in quantity (7, 6, 7). The Banker's
Algorithm is used to allocate resources and it has the following SAFE state:
Process Allocation Max Need Available: A B C
A B C A B C A B C 3 2 1
P0 1 0 2 2 1 6 1 1 4
P1 0 1 0 2 2 1 2 1 1
P2 3 1 2 6 6 5 3 5 3
P3 0 2 2 0 5 3 0 3 1
a) Justify why the current state is safe.
b) If P0 requests an additional unit of resource B, will it be allowed? Justify your answer.

Added by Gabriel C.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert John Bell

Step 1

In this case, we can start by assuming that all resources are available. 1) We start with process P0. It needs 1 unit of resource A, 1 unit of resource B, and 4 units of resource C. Since there are 3 units of resource A, 2 units of resource B, and 1 unit of Show more…

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CPU SCHEDULING ALGORITHM PRACTICE QUESTION 1) Consider a system with 3 resources (A, B, C) in quantity (7, 6, 7). The Banker's Algorithm is used to allocate resources and it has the following SAFE state Process Allocation Max ABC ABC 1 0 2 2 0 1 0 2 1 3 2 6 6 5 0 2 2 0 5 3 Need ABC 1 1 4 1 1 3 5 3 3 1 Available: A B C 3 2 1 PO P1 P2 P3 a) Justify why the current state is safe. b) If P0 requests an additional unit of resource B, will it be allowed? Justify your answer.