Can you please explain how to get the answer? (answer is provided)

Can you please explain how to get the answer? (answer is provided)

Question 64 Suppose the following snapshot of the system resource allocation exists at time T. This describes 5 processes (PO to P4) and 4 resource types, A. B C, and D. 1 Allocation Max Available Process A B C D A B CD ABCD PO 0 0 1 2 0 0 1 2 1 5 20 P1 1 0 0 0 7 50 P2 1 3 5 4 2 P3 0 6 3 2 0 6 5 2 P4 0 0 14 0 6 5 6 Answer the following questions using the banker's algorithm: 3 5 6 What is the sate of the system at 3. time T, a safe or unsafe state? The values of Need matrix for processes PO through P4 respectively are (0, 0, 0, 1.0), (0, 7, 5, 0), (1,0,0, 2), (0, 0, 2, 0), and (0,6,4,2). What is the content of the matrix 1. "Need'= MAX-Allocation at time T? 2. The values of Need matrix for processes PO through P4 respectively are (0,2,0, 1),(0,7,5, ), (1,0, 0, 2), (0, 0, 0, 0), and (0, 6, 4, 1). If a request from process P1 6 arrives for (0,4,2,0), can the request be granted immediately? 3. The system is in a safe state 4. The system is in unsafe sate 5. No, the request made by P1 will be denied