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

Characteristics of IPv4

Learning about computer networking is always a fascinating topic as it also introduces you to how computing devices interpret data and present information. Using a computer or smart device, we usually see a very well-polished graphical user interface (GUI). In Microsoft Windows, for example, there is Windows Explorer, which helps us navigate the various areas (locations) of a computer easily. When opening files, such as pictures, the photo viewer application presents us with a picture our minds can interpret. However, by default, computers and networking devices are unable to interpret the objects within a picture.

When data is written onto a hard disk drive (HDD), there's an actuator arm that contains a read/write head (pin), which is used to magnetize and de-magnetize areas on the platters to represent data. This means that what we see as a picture of a car on the computer screen is, to the device, a portion of the HDD being magnetized and de-magnetized...