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

The need for IP addressing

A computer network is a bit like a neighborhood or community. Communities consist of many people, houses, schools, and businesses. Each of these houses and buildings has a postal (mailing) address that allows others to send letters and packages via a courier service to the recipients. Without a mailing or postal address, it's a bit challenging for others to send a physical letter or package to you. Similarly, on a computer network, each device has a unique address that is used for sending and receiving messages (signals) between them. These addresses are known as Internet Protocol addresses and are most commonly referred to as IP addresses.

How do we know which IP addresses can be used on the internet and on private networks? There is a special organization that manages both IPv4 and IPv6 addresses. This organization is known as the Internet Assigned Numbers Authority (IANA). The IANA is also responsible for governing the usage of the Domain Name...