NETWORKS

9. The TOP layer of the STACK. Provides access to services
10. A network that covers a large area. It connects 2 or more LANs
12. It is used when sending an email through the internet
14. A local area network where connected devices use HIGH FREQUENCY radio waves to communicate
15. A network that has cables which connect one network device to another in a closed loop or ring
17. It uses a KEY to encode DATA
19. It is a family of protocols used in WIRED LANs. They cover everything from the PHYSICAL PARTS of a network.

1. Layer The layer that deals with sending data across multiple networks
2. A powerful computer that gives the network SERVICE
3. The latest version used for retrieving email, from an email server
4. The layer that controls the transmission and reception of PACKETS of data to/from a local network
5. It allows emails to be accessed using multiple clients
6. It is a protocol that sets out HOW DATA is transmitted on WIRELESS LANs
7. A network that covers a small area often a single site
8. It acts as a BARRIER between an organisation's internal network and internet
11. A collection of two or more computers that are connected together for sharing resources and data.
13. A set of rules that determine how communications between DEVICES are formatted and how they are sent/received
16. It is used to protect a network and its data from internal and external threats
18. It is used to transfer FILES over a network that uses TCP.
20. It is a protocol stack,a collection of protocols that work together