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

Classes of IPv4 addresses

Who determines which IPv4 address can be assigned to our internal devices, and those that are directly connected to, or facing, the internet? When the Internet Assigned Numbers Authority (IANA) became entrusted with the management of IP addresses, a portion of IPv4 addresses were made to be used on the internet and on the devices that are directly connected to the internet. Meanwhile, another portion was assigned to be strictly usable only on internal networks, such as a home network or within an organization.

In IPv4, there are two address spaces. These are as follows:

  • Public IPv4 address space
  • Private IPv4 address space

In the following sections, we will discuss each address spaces in further detail, describing the characteristics and uses of both public and private IP addresses.

Public IPv4 address space

We will first discuss the characteristics of the public IPv4 space. IANA has divided IP addresses into five classes. Each...