Question: CpE468 - Computer Architecture Homework 4 Fall 2020 Due: 3/2/2021 Homework must be submitted when due. Do your own homework! DO NOT COPY! All parties

CpE468 - Computer Architecture Homework 4 Fall 2020 Due: 3/2/2021 Homework must be submitted when due. Do your own homework! DO NOT COPY! All parties involved in copying get zero on that homework. 1. What does RAID stand for? When would you use RAID? 2. Explain how disk mirroring may be used in RAID systems to improve availability? Describe how snooping protocols differ from directory-based protocols? 4. Describe why coherency is necessary for multiprocessor caches? 5. When is data striping across different disks most and least effective? Explain. 6. When is data striping across different disks most and least effective? Explain. 7. Compare between RAID level 0, 1, 2, 3, 4 and 5 with respect to read & write performance? &. What is the main advantage of directory-based cache protocol compared to snooping protocol? %. Explain why cache coherency is important for Shared Memory Processors design? 10. In the snooping coherence protocol, what is the principal purpose of the Exclusive state

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