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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?
Half-Duplex - Capability for data transmission in only single direction at a time among sending station and a receiving station.
Data Transfer After connection is established bidirectional data transfer can take place. The client and server can both send data and acknowledgments. Figure show
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Wireless Ethernet (802.11) a) Operates on physical plus data link layers b) BSS (Basic service set) stationary or mobile wireless stations and a central base station known a
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ACME Corp is located in Toledo, Ohio. They would like to create a network and divide it into 3 subnets, each subnet has 150 computers. The IT plan calls for connecting the LAN to t
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