You're reading from Implementing and Administering Cisco Solutions: 200-301 CCNA Exam Guide Begin a successful career in networking with CCNA 200-301 certification

Product type Paperback

Published in Nov 2020

Publisher Packt

ISBN-13 9781800208094

Length 764 pages

Edition 1st Edition

Tools

Cisco

Concepts

Network Security

Author (1):

Glen D. Singh

View More author details

Table of Contents (26) Chapters

Preface

1. Section 1: Network Fundamentals

2. Chapter 1: Introduction to Networking FREE CHAPTER

3. Chapter 2: Getting Started with Cisco IOS Devices

4. Chapter 3: IP Addressing and Subnetting

5. Chapter 4: Detecting Physical Issues, Wireless Architectures, and Virtualization

6. Section 2: Network Access

7. Chapter 5: Implementing VLANs, Layer 2 Discovery Protocols, and EtherChannels

8. Chapter 6: Understanding and Configuring Spanning-Tree

9. Section 3: IP Connectivity

10. Chapter 7: Interpreting Routing Components

11. Chapter 8: Understanding First Hop Redundancy, Static and Dynamic Routing

12. Section 4: IP Services

13. Chapter 9: Configuring Network Address Translation (NAT)

14. Chapter 10: Implementing Network Services and IP Operations

15. Section 5: Security Fundamentals

16. Chapter 11: Exploring Network Security

17. Chapter 12: Configuring Device Access Control and VPNs

18. Chapter 13: Implementing Access Control Lists

19. Chapter 14: Implementing Layer 2 and Wireless Security

20. Section 6: Automation and Programmability

21. Chapter 15: Network Automation and Programmability Techniques

22. Chapter 16: Mock Exam 1

23. Chapter 17: Mock Exam 2

24. Assessments

25. Other Books You May Enjoy

Leave a review - let other readers know what you think

Domain Name System

Let's imagine you want to research additional information about the Cisco Certified Network Associate (CCNA) certification. The best place to start researching would be Cisco's website at www.cisco.com. Open your favorite web browser and simply enter the URL into the address bar and hit Enter. After a few seconds, the Cisco website appears and you can continue your research. Everything seems to work like magic, but have you ever wondered how your computer determines the IP address for the web server that is hosting Cisco's website?

As mentioned in Chapter 3, IP Addressing and Subnetting, each device that is connected and exchanging messages on a computer-based network must be assigned a unique IPv4 or IPv6 address. The same is also applied to all devices on the internet, such as web and mail exchange servers. If a web server is identified by its IP address, why does it have a website URL address such as www.cisco.com?

To help you understand the...