7. Distance Vector Routing

Question 1

What is the main principle of Distance Vector Routing?

Answer 1

Routers share their routing tables with immediate neighbors, and each router
updates its table based on the information received.

Question 2

What metric is commonly used in Distance Vector Routing protocols?

Answer 2

Hop count, which measures the number of routers a packet passes through to
reach its destination.

Question 3

What is the Count to Infinity problem in Distance Vector Routing?

Answer 3

It occurs when routers misinterpret looping routes as valid, causing the hop
count to increment indefinitely.

Question 4

How does Split Horizon help mitigate routing loops?

Answer 4

Split Horizon prevents routers from advertising a route back to the neighbor
from which it was learned.

Question 5

What is the maximum hop count in RIP, and why is this limit important?

Answer 5

RIP has a maximum hop count of 15, with 16 considered infinity, to prevent
excessively long or looping routes.

Question 6

What is the purpose of the Hold-Down mechanism?

Answer 6

To temporarily ignore updates about a route marked as unreachable,
preventing premature acceptance of incorrect routing information.