Chapter 4: Routing Basics

Question 1

Differentiate between static, direct, and dynamic routing. Provide an example of where each type might be applied.

Answer 1

Static routing: Manually configured routes; used in small or simple networks where routes do not change frequently.

Direct routing: Routes packets to directly connected networks; no intermediate routers.

Dynamic routing: Uses protocols like OSPF or RIP to automatically adjust routes; used in larger, more complex networks.

Question 2

What is the significance of route preference and the longest match rule in routing?

Answer 2

Route preference: Determines which route to use when multiple routes to the same destination exist.
Longest match rule: Chooses the route with the most specific (longest) subnet mask.

Question 3

Describe the purpose and configuration of a floating or backup route.

Answer 3

Floating route: A backup route with a higher administrative distance, used when the primary route fails.
ip route-static 192.168.1.0 24 192.168.2.1 preference 200

Question 4

Calculate route summarization for the following subnets: 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24, 192.168.4.0/24.

Answer 4

Summarized route: 192.168.0.0/22