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108年 - 108 國立中山大學_碩士班招生考試_資工系(資安)：作業系統#105763
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2.(Menory Maiageneut: ]
(1) What are the purposes of base and limit registers?
相關申論題
(1) Explain the five possible states of a process.
#450195
(2) Explain two common models for inter-process communications.
#450196
(3) Let us consider five processes arriving in the order of P1, P2, P3, P4, and P5 at time O:Show the turnaround time of each process based on the following scheduling algorithms: First-come first-served, round robin (with quantum = 1), shortest job first, and non-preemptive priority(where a smaller priority number indicates a higher priority).
#450197
(4) What is the many-to-one multithreading model? What are the two drawbacks of this model? (3%)
#450198
(2) Give the six steps to handle a page-fault event.
#450200
(3) Let average page-fault time and memory-access time be 80us and 240ns, respectively. What is the expected page-fault rate if we want to get the effective access time smaller than 280ns? Give your calculation.
#450201
(4) Suppose that it takes 35ns and 105ns to search TLB and access memory, respectively. If TLB has 95% hit ratio, what is the effective memory-access time? Give your calculation.
#450202
(1) What are the two functions supported by a VFS (virtual file system) layer?
#450203
(2) Consider a disk queue with requests for I/O to blocks on cylinders 103, 188, 42, 120, 7, 138, 76 and 87. Let the disk head currently stay at cylinder 65, and the maximum cylinder be 200. Show the results of SSTF and C-LOOK scheduling methods.
#450204
(3) Explain seek time, rotational latency, and random-access time for disks.
#450205
相關試卷
110年 - 110 國立中山大學_碩士班招生考試_資工系(資安)：作業系統#104266
110年 · #104266
109年 - 109 國立中山大學_碩士班招生考試_資工系(資安)：作業系統#105760
109年 · #105760
108年 - 108 國立中山大學_碩士班招生考試_資工系(資安)：作業系統#105763
108年 · #105763
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