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

Subnetting

Hearing the word subnetting can be a bit intimidating when learning a networking-related certification. However, learning subnetting is unavoidable on your journey to becoming an awesome network engineer. You may be wondering, what is subnetting and why do we need to learn how to perform this task as a networking professional? To get a better understanding of the answer to this question, let's use a simple analogy. Let's imagine you are the network administrator at a company that has 6 networks, and each of these networks has no more than 50 devices that require an IP address.

It would be easy to simply take a Class C network block such as 192.168.1.0/24 and assign it to the network, then choose another Class C address block to assign to the next network, and so on. The following is a typical workable solution for assigning network blocks to the 6 networks:

  • Network 1: 192.168.1.0/24
  • Network 2: 192.168.2.0/24
  • Network 3: 192.168.3.0/24
  • Network...