LAN

102 LAN notes | PDF

NAT example | PDF

• upload, download, bandwidth, latency
• dial-up, DSL, cable, FiOS, leased line, satellite, WiMAX, cellular
• wireless security, firewall
• local IP
• Network Address Translation

Audio Quick Review  (8:14)

Review Questions 

This is not work to be turned in for a grade.  They are however very similar to the questions on the Comprehension Quiz.

1. Which types of internet connection are wired, which are wireless?
2. What is a modem?
3. How are bandwidth, latency, and speed related?
4. What are the two security issues to consider when using wireless networks?
5. What is MAC filtering? 
6. What are WEP and WPA?
7. What is a firewall?
8. What is packet filtering?
9. What is a local IP address?  How is it different from a public IP address?
10. Why do we need local as well as public IP addresses?
11. What does it mean for a local IP address to be static? Dynamic?
12. Why do we need to do NAT?
13. What does NAT achieve (what does it make it look like to the outside world)?
14. What does NAT do when we send a packet?
15. What does NAT do when we receive a packet?