1. Why are the wires twisted in twisted-pair copper wire? 2. What are some major limitations of twisted-pair wire? 3. What is the difference between unshielded twisted pair and shielded twisted pair? 4. Describe the components of optical fiber cable. 5. What is a parity bit? 6. Why would you expect a CRC to detect more errors than a parity bit? 7. Why is a statistical time-division multiplexer more efficient than a synchronous time- division multiplexing? 8. Why is multiplexing so cost-effective? 9. How is interference avoided by using frequency-division multiplexing? 10. Define flow control?

1. Why are the wires twisted in twisted-pair copper wire? 2. What are some major limitations of twisted-pair wire? 3. What is the difference between unshielded twisted pair and shielded twisted pair? 4. Describe the components of optical fiber cable. 5. What is a parity bit? 6. Why would you expect a CRC to detect more errors than a parity bit? 7. Why is a statistical time-division multiplexer more efficient than a synchronous time- division multiplexing? 8. Why is multiplexing so cost-effective? 9. How is interference avoided by using frequency-division multiplexing? 10. Define flow control?

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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