How do hubs, switches, and routers operate at different layers of the OSI model, and what are their specific functions?

In the context of a computer network, explain how dependability and availability are related. the causes of the depreciation and obsolescence of a network HUB Is a deeper discussion of the issues required?

The OSI model takes the task of internetworking and divides it into what is referred to as a vertical stack that consists of seven layers. In the medical/healthcare what’s one of the layers within this model and provide a summary of how it functions within a network of that industry.  Why is the layer essential to the architecture configuration of the network?

What is the most important problem with a two-tier client-server architecture? How can this problem be solved using a client-server approach with many tiers?

What is the function of a hub in the OSI model? Which layers of the model are hubs associated with?

How do distributed systems and remote procedure calls (RPC) utilize object serialization for communication between nodes?

In the context of a computer network, explain how dependability and availability are related. the causes of the depreciation and obsolescence of a network HUB Is a deeper discussion of the issues required?