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- We need to connect 20 stations. How many links are needed in a mesh topology? How many links are needed in a star topology? How many drop lines are needed in a bus topology? How many links are needed in a ring topology (without counting the links that connect stations to repeaters)? Here a link means a connection between devices.
- Suppose you are watching a video posted on our university website. Is your video watching simplex, half-duplex, or full-duplex? Does your video watching use circuit switching or packet switching?
- Please explain why packet switching needs to store and forward, and circuit switching does not need.
- A company has an internal network. In the internal network, there are 10 wireless routers. All the wireless routers are connected to a cable. Each device of the company gets access to its closest wireless router. What topologies are used in the internal network? Please explain your answer.
- Match the following to one or multiple layers of OSI model. In your answer, please give names of the layers. For example, for Layer 1, you should answer physical layer.
- Reliable process-to-process message delivery
- Route determination
- Error detection and retransmission
- Interface to transmission medium
- Format and code conversion services
- Provides access to the end user
- log-in and log-out procedure
- Responsibility for carrying frames between adjacent nodes
ECE487
[Solved] ECE487 Assignment 1-Data Communications Networks
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