Question

What does redundancy mean in the context of Internet routing?

A - Multiple paths exist between any two points.
B - For any two points on the internet, there exists only one path between them.
C - Data sent over the internet is sent to the router with the lowest cost.
D - If a single router on a network breaks, the entire network fails.

Answer 1

Redundancy in Internet routing means having multiple paths between any two points, ensuring network resilience and reliable data transmission.

Step-by-step explanation:

In the context of Internet routing, redundancy refers to the availability of multiple paths between any two points on the Internet. This means that if one path is unavailable due to a failure, traffic can be rerouted through an alternate path. The correct answer to the student's question would be A - Multiple paths exist between any two points.

This redundancy is crucial for the resilience and reliability of network communication, ensuring that data can still reach its destination even if some routers or links fail. The routers on the Internet use protocols like BGP (Border Gateway Protocol) to discover multiple paths and determine the best path for routing traffic.