Book Image

CompTIA Network+ N10-008 Certification Guide - Second Edition

By : Glen D. Singh
Book Image

CompTIA Network+ N10-008 Certification Guide - Second Edition

By: Glen D. Singh

Overview of this book

This book helps you to easily understand core networking concepts without the need of prior industry experience or knowledge within this fi eld of study. This updated second edition of the CompTIA Network+ N10-008 Certification Guide begins by introducing you to the core fundamentals of networking technologies and concepts, before progressing to intermediate and advanced topics using a student-centric approach. You’ll explore best practices for designing and implementing a resilient and scalable network infrastructure to support modern applications and services. Additionally, you’ll learn network security concepts and technologies to effectively secure organizations from cyber attacks and threats. The book also shows you how to efficiently discover and resolve networking issues using common troubleshooting techniques. By the end of this book, you’ll have gained sufficient knowledge to efficiently design, implement, and maintain a network infrastructure as a successful network professional within the industry. You’ll also have gained knowledge of all the official CompTIA Network+ N10-008 exam objectives, networking technologies, and how to apply your skills in the real world.
Table of Contents (26 chapters)
Part 1: Networking Concepts
Part 2: Network Implementation
Part 3: Network Operations
Part 4: Network Security and Troubleshooting
Chapter 18: Practice Exam

Understanding routing protocols

Routers can populate their routing tables with directly connected routes or networks that are attached to the local interfaces of a router. However, a router is unable to determine the path/route to a destination network that is not directly connected, such as a remote network on the internet or a network that is attached to another router within an organization.

For instance, the following screenshot shows the routing table of Router-A, which has two directly connected routes/networks on the local router:

Figure 9.4 – Routing table

As shown in the preceding diagram, Router-A contains the network, which is directly connected to its GigabitEthernet 0/0 interface, and the network, which is directly connected to the GigabitEthernet 0/1 interface.

The following diagram provides a visual representation of the routing table within Router-A:

Figure 9.5 – Network...