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111) How many resources are there of type (A. B. C)? What is the contents of the Need marix? Is the system in a safe state? Why?

111) How many resources are there of type (A. B. C)? What is the contents of the Need marix? Is the system in a safe state? Why?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Q1. Consider a system with 4 processes Po through P3. 3 resource types A. B. and C. and the current state at t as shown in Table 2. Hint: Safety algorithm and Resource-request algorithm in Appendix I. Table 2: Process allocation Max Process Available A B с B C B с Po 0 0 1 0 0 1 P₁ 1 7 5 1 0 0 P: 2 3 5 1 3 5 P: 6 5 0 6 3 Total 2 9 9 1 5 2 How many resources are there of type (A. B. C)? What is the contents of the Need matrix? iii) Is the system in a safe state? Why? iv) If a request from process P1 arrives for additional resources of (0. 5. 2). can the Banker's algorithm grant the request immediately? What would be the new system state after the allocation (Table 3)? Table 3: Process allocation Max Allocation Available Process B с A BC A B с Po 0 1 P1 7 5 P₂ 3 5 P: 5 Total 1) 0 1 2 Allocation
Transcribed Image Text:Q1. Consider a system with 4 processes Po through P3. 3 resource types A. B. and C. and the current state at t as shown in Table 2. Hint: Safety algorithm and Resource-request algorithm in Appendix I. Table 2: Process allocation Max Process Available A B с B C B с Po 0 0 1 0 0 1 P₁ 1 7 5 1 0 0 P: 2 3 5 1 3 5 P: 6 5 0 6 3 Total 2 9 9 1 5 2 How many resources are there of type (A. B. C)? What is the contents of the Need matrix? iii) Is the system in a safe state? Why? iv) If a request from process P1 arrives for additional resources of (0. 5. 2). can the Banker's algorithm grant the request immediately? What would be the new system state after the allocation (Table 3)? Table 3: Process allocation Max Allocation Available Process B с A BC A B с Po 0 1 P1 7 5 P₂ 3 5 P: 5 Total 1) 0 1 2 Allocation
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