1. Before reading the text watch a video Read the text and do exercises a lans (Local Area Networks) Networking

Lesson 22: Wide Area Network (WAN)
Lesson materials


APPENDIX 3. READING.
Work in groups. Read the text and translate it. Answer the questions and make a brief presentation of WAN topology.
Questions:
1. What does WAN stand for?

Answer: Wide area network (WAN).

2. What is the function of Point-to-Point Topology?

Answer: Point-to-Point is the topology is the topology that connects one site to the other like they are connected directly.

3. Which topology is expensive and it needs an extra effort because of the number of the

connections?

Answer: Hub and Spoke WAN Topology .

4. What topology is used to connect multiple sites?

Answer: Hub and Spoke Topology 
5. What is the disadvantage of Dual-Homed WAN Topology?

Answer: It’s expensive.
WAN and its topology

WANs have no geographical limit and may connect computers or LANs an opposite sides of the world. They are usually linked through telephone lines, fibre-optic cables or satellites. The main transmission paths within a WAN are high-speed lines called backbones.