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1. A computer system has a two-level memory cache hierarchy. The L1 cache has a zero hit penalty, a miss penalty of 5 ns and a hit rate of 95 percent. The L2 cache has a miss penalty of 100 ns and a hit rate of 90 percent.
a) How many cycles are lost for each instruction accessing the memory if the CPU clock rate is 2 GHz?
b) We can either increase the hit rate of the topmost cache to 98 percent or increase the hit rate of the second cache to 95 percent. Which improvement would have more impact?
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Consider a subnet with subnet prefix 101.101.101/24 a) If you subdivide the subnet into four equal size subnets, what are their prefixes? Give all four prefixes in the form a.
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What are the benefits of wireless devices One benefit is that if everyone uses standard, everyone can talk to anyone. Another benefit is that extensive use of any standard will
OSI Reference Model Normal 0 false false false EN-IN X-NONE X-NONE
Can you describe the concept of subnetting?
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