CST311: Journal Week 7

 This week I learned about the link layer. The link layer features two primary types of channels: broadcast and point-to-point. Broadcast channels, used in wireless LANs, satellite networks, and hybrid fiber-coaxial cable networks, connect multiple hosts to a single communication medium and require a medium access protocol to manage transmission coordination. This coordination can be managed by a central controller or through decentralized host coordination. Conversely, point-to-point links, such as those between routers or a computer and its Ethernet switch, utilize simpler coordination mechanisms detailed in protocols like PPP, which is versatile enough for both dial-up and high-speed fiber-optic connections.

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