PDI+ Chapter 2.1 Network Basics

3. wiring standard which enables the direct connection of the same type of network device.
4. Large core optical fibre using an LED light source.
5. A set of rules enabling systems to communicate.
7. aka 802.3
10. The O in NOS.
12. Number of wires in a Cat5 cable.
13. Typical indoor range of 802.11a, in metres.
14. Uses port 389
17. Alternative name for RJ-45 connectors
18. Unique ID for each device (network adapter) at the datalink layer expressed in hexadecimal.
20. Layer 4 of the OSI model.
22. Category of cable which supports both Gigabit and 10G ethernet networks.
24. Wireless connection type that requires line of sight.
26. Uses port 23.

1. A word used to described the ability of network equipment to transmit data in both directions either at once or one direction at a time.
2. Protocol used for sending email.
3. The effect of this on network performance is reduced by using switches instead of hubs.
6. Part or unit of a larger network linked by a connectivity device.
8. The main characteristic of network media, also called data rate.
9. Most commonly used network topology where each device is connected to a central hub or switch.
11. The first layer of the OSI model.
15. Wireless security protocol which uses AES encryption.
16. Layer of the OSI model with 2 distinct sublayers.
19. 169.254.x.y
21. Wireless network name.
23. item added to a message at each layer of the OSI model.
25. Common cable type for Ethernet networks.