2.Should old or unpatched computers be allowed on a LAN? 3.Shutting down unneeded ports and services is an essential and very basic part of computer security because every port open (and every service running) is a possible avenue for a hacker or virus. What is the rule to shut down unneeded ports and services and how to do it properly?  4.Why should network administrators not simply throw old backup media away? 5.Discuss the concept of Demilitarized Zone (DMZ).

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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2.Should old or unpatched computers be allowed on a LAN?

3.Shutting down unneeded ports and services is an essential and very basic part of computer security because every port open (and every service running) is a possible avenue for a hacker or virus. What is the rule to shut down unneeded ports and services and how to do it properly? 

4.Why should network administrators not simply throw old backup media away?

5.Discuss the concept of Demilitarized Zone (DMZ).

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