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Final Exam Study Guide

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1. What is a byte?
A: 8 Bits
2. When using a truth table, 1 and 0 equal ______.
A: 0
3. What do parentheses do in mathematical equations?
A: Ensure that whatever operation is inside the parentheses is performed first
4. What is a node on a network?
A: Any device connected to a network.

5. Which of these following physical topologies has the inherent weakness of a single point of failure? A: Star Topology

6. What is the protocol for internet? What are the parts of a web address?
A: HTTP7890-=

7. What is basic to every networking standard?
A: IEEE

8. Why is the TCP/IP model divided into layers?
A: For Troubleshooting and Teaching

9. Which layer of the OSI model (shown below) is responsible for encryption and compression?
A: “OSI-7”, “TCP/IP-5”

10. What is a closed electrical circuit?
A: A circuitry running currency from – to +.

11. What is a network encoding scheme?
A: A Character Set

12. What causes full duplex to transmit and receive simultaneously?
A: 4 wires, one pair dedicated to transmit and another to receive data at the same time.

13. Max cable length for cat-5?
A: 100m or 328ft

14. What is 802.3? What is 802.11?
A: 802.3= Ethernet, 802.11= Wi-Fi

15. What is meant by Ethernet “bit rate” as defined by IEEE standards?
A: How many calculations done per second in the exchange of packets.

16. What is the pin out for a cat-5 cable?
A: Wires 1, 2, 3, and 6

17. In wireless networking what is a site survey for?
A: To identify RF interference due to wall depth and placement for the best quality of service (QoS).

18. What does the Wi-Fi Alliance do?
A: The Wi-Fi Alliance is a trade association that promotes Wireless LAN technology and certifies products if they conform to certain standards of interoperability with IEEE.

19. What happens to a wireless signal the further you get from an AP?
A:

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