Answer the following questions considering memory hierarchies.a. Why does data tend to cluster in the memory system? What are the two mainreasons that result in such clusters?b. How does the hit ratio affect the access time for the memory system?c. What is the difference between SRAM and DRAM?d. Assume that you have a memory system with two levels. Level 1 has an access time of 0.01 μs and level 2 has an access time of 0.1 μs. What will be the average access time if the 90% of the memory accesses are found in level 1?e. How many check bits are required for Single-Error-Correction and Double- Error-Detection (SEC-DED) when the data word size is 32bits when Hamming method is used for error checking? 6. (25 points) Answer the following questions considering memory hierarchies.a. (5 points) Why does data tend to cluster in the memory system? What are the two mainreasons that result in such clusters?b. (5 points) How does the hit ratio affect the access time for the memory system?c. (5 points) What is the difference between SRAM and DRAM?d. (5 points) Assume that you have a memory system with two levels. Level 1 has anaccess time of 0.01 us and level 2 has an access time of 0.1 us. What will be the averageaccess time if the 90% of the memory accesses are found in level 1?e. (5 points) How many check bits are required for Single-Error-Correction and Double-Error-Detection (SEC-DED) when the data word size is 32bits when Hamming method isused for error checking?

Answer : a) The primary benefit of clustering is that it increases the number of memory references…

Answered: 6. (25 points) Answer the following…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

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Answer the following questions considering memory hierarchies.
a. Why does data tend to cluster in the memory system? What are the two main

reasons that result in such clusters?

b. How does the hit ratio affect the access time for the memory system?

c. What is the difference between SRAM and DRAM?

d. Assume that you have a memory system with two levels. Level 1 has an access time of 0.01 μs and level 2 has an access time of 0.1 μs. What will be the average access time if the 90% of the memory accesses are found in level 1?

e. How many check bits are required for Single-Error-Correction and Double- Error-Detection (SEC-DED) when the data word size is 32bits when Hamming method is used for error checking?

6. (25 points) Answer the following questions considering memory hierarchies.
a. (5 points) Why does data tend to cluster in the memory system? What are the two main
reasons that result in such clusters?
b. (5 points) How does the hit ratio affect the access time for the memory system?
c. (5 points) What is the difference between SRAM and DRAM?
d. (5 points) Assume that you have a memory system with two levels. Level 1 has an
access time of 0.01 us and level 2 has an access time of 0.1 us. What will be the average
access time if the 90% of the memory accesses are found in level 1?
e. (5 points) How many check bits are required for Single-Error-Correction and Double-
Error-Detection (SEC-DED) when the data word size is 32bits when Hamming method is
used for error checking?

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