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

Chapter 11: Exploring Network Security

Designing and implementing a network without security in mind is like leaving all of the windows and doors open at home when you go out. An unauthorized visitor can simply access your personal space and remove your valuables, simply because all points of entry are open. The same concepts should be applied to a network; security is one of the most important factors a network engineer should always remember when designing any network.

During the course of this chapter, we'll look at how to identify various threat actions and attacks, understand the need for network security on an enterprise network, and understand how to develop a security program to improve user awareness and training.

In this chapter, we will cover the following topics:

  • Security concepts (threats, vulnerabilities, and exploits)
  • Password management
  • Vulnerability assessment tools
  • Authentication, Authorization, and Accounting (AAA)
  • Wireshark 101...