Book Image

Implementing and Administering Cisco Solutions: 200-301 CCNA Exam Guide

By : Glen D. Singh
Book Image

Implementing and Administering Cisco Solutions: 200-301 CCNA Exam Guide

By: Glen D. Singh

Overview of this book

In the dynamic technology landscape, staying on top of the latest technology trends is a must, especially if you want to build a career in network administration. Achieving CCNA 200-301 certification will validate your knowledge of networking concepts, and this book will help you to do just that. This exam guide focuses on the fundamentals to help you gain a high-level understanding of networking, security, IP connectivity, IP services, programmability, and automation. Starting with the functions of various networking components, you’ll discover how they are used to build and improve an enterprise network. You’ll then delve into configuring networking devices using a command-line interface (CLI) to provide network access, services, security, connectivity, and management. The book covers important aspects of network engineering using a variety of hands-on labs and real-world scenarios that will help you gain essential practical skills. As you make progress, this CCNA certification study guide will help you get to grips with the solutions and technologies that you need to implement and administer a broad range of modern networks and IT infrastructures. By the end of this book, you’ll have gained the confidence to pass the Cisco CCNA 200-301 exam on the first attempt and be well-versed in a variety of network administration and security engineering solutions.
Table of Contents (26 chapters)
1
Section 1: Network Fundamentals
6
Section 2: Network Access
9
Section 3: IP Connectivity
12
Section 4: IP Services
15
Section 5: Security Fundamentals
20
Section 6: Automation and Programmability
22
Chapter 16: Mock Exam 1
23
Chapter 17: Mock Exam 2

Understanding dynamic routing

Let's imagine you're the network engineer for a very large organization that has a lot of subnets spanning across multiple remote offices, which are all interconnected by routers. Manually implementing static routes to each network can be a very daunting task. Imagine that there is a failure on the network; routers will not automatically discover a new path and re-route network traffic. Furthermore, as the network engineer, your job gets tougher when there are issues on the network as static routing becomes more difficult to troubleshoot as the network expands.

To save the day, there are dynamic routing protocols. What exactly are dynamic routing protocols? The answer to this question is quite simple: they are layer 3 routing protocols that can be configured on a router to automatically discover remote networks, maintain and update routing tables, and calculate the best path to a destination network. In the event a route or path is no longer...