Consider a computer with 4 levels of memory. Calculate the average memory access time, given the access time and miss rate given below Memory Access Time(ns) Miss Rate Cache 1 3% Cache 2 10 8% RAM 40 30% HDD 95

Consider a computer with 4 levels of memory. Calculate the average memory access time, given the access time and miss rate given below Memory Access Time(ns) Miss Rate Cache 1 3% Cache 2 10 8% RAM 40 30% HDD 95

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

Problem 1PE

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Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.

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Consider a computer with 4 levels of memory. Calculate the average
memory access time, given the access time and miss rate given below
Memory
Access Time(ns)
Miss Rate
Cache 1
3%
Cache 2
10
8%
RAM
40
30%
HDD
95
5.

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