Invitation to Computer Science 8th Edition

Published by Cengage Learning
ISBN 10: 1337561916
ISBN 13: 978-1-33756-191-4

Chapter 7 - 7.2 - Basic Networking Concepts - Practice Problems - Page 349: 3

Answer

The main security concern is that in an Ethernet-like bus topology every node receives a copy of every message sent. A node is supposed to look at the address field of the message to see if it is the desired recipient and, if not, discard that message. However, a malicious node could keep, read, and record every message on the network, even those that are not intended for it.

Work Step by Step

The main security concern is that in an Ethernet-like bus topology every node receives a copy of every message sent. A node is supposed to look at the address field of the message to see if it is the desired recipient and, if not, discard that message. However, a malicious node could keep, read, and record every message on the network, even those that are not intended for it.
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