Respuestas del Capitulo 7 de Cisco CCNA 2

Chapter 7 of Cisco CCNA 2 dives deep into the world of routing and switching, providing essential knowledge and practical skills. In this blog post, we will explore the key concepts and offer comprehensive answers to the questions present in this chapter. So, let's get started!

Question 1: What is the purpose of a routing protocol?

A routing protocol is designed to enable routers to dynamically exchange information about network destinations. Its purpose is to find the best path for data packets to travel from one network to another. By sharing information, routers can build a routing table and make intelligent decisions on how to forward traffic efficiently.

Question 2: What is the difference between distance-vector and link-state routing protocols?

Distance-vector routing protocols determine the best path based on the distance or number of hops to a destination. Examples include Routing Information Protocol (RIP) and Interior Gateway Routing Protocol (IGRP). On the other hand, link-state routing protocols rely on a detailed map of the network's topology and select routes based on multiple factors like bandwidth and delay. Open Shortest Path First (OSPF) and Intermediate System-to-Intermediate System (IS-IS) are popular link-state protocols.

Question 3: How does the Enhanced Interior Gateway Routing Protocol (EIGRP) work?

EIGRP is a hybrid routing protocol that combines the best features of both distance-vector and link-state protocols. It considers not only the number of hops but also factors like bandwidth and delay to determine the best path. EIGRP uses the Diffusing Update Algorithm (DUAL) to calculate routes and only sends updates when changes occur, making it efficient and scalable.

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