Answered: Assume that a private internet requires…

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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Assume that a private internet requires that the messages at the application layer be encrypted and decrypted for security purposes. If we need to add some information about the encryption/decryption process (such as the algorithms used in the process), does it mean that we are adding one layer to the TCP/IP protocol suite? Redraw the TCP/IP layers (Figure 2.4 part b) if you think OS

Figure 2.4 Layers in the TCP/IP protocol suite
Application
Application
Layer 5
Transport
Transport
Layer 4
Internet
Layer 3
Network
Network Interface
Layer 2
Data link
Hardware Devices
Physical
Layer 1
a. Original layers
b. Layers used in this book

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