Answered: Both business and government were…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Both business and government were concerned
with security long before the need for computer-related
security was recognized. They always have been interested in
the physical protection of assets through means such as ,
locks, barriers, and guards. The introduction of computer
processing, large databases, and communication networks has
increased the need for security. For many people, security
means preventing unauthorized access, such as preventing a
hacker from breaking into your computer. Security is more
than that, however. It also includes being able to recover from
temporary service problems (e.g. a circuit breaks) or from
natural disasters (e.g. fire, earthquake).
You are required to address the following three Security Goals:
(a) Confidentiality
(b) Integrity and
(c) Availability.