Book Image

CompTIA Network+ N10-008 Certification Guide - Second Edition

By : Glen D. Singh
Book Image

CompTIA Network+ N10-008 Certification Guide - Second Edition

By: Glen D. Singh

Overview of this book

This book helps you to easily understand core networking concepts without the need of prior industry experience or knowledge within this fi eld of study. This updated second edition of the CompTIA Network+ N10-008 Certification Guide begins by introducing you to the core fundamentals of networking technologies and concepts, before progressing to intermediate and advanced topics using a student-centric approach. You’ll explore best practices for designing and implementing a resilient and scalable network infrastructure to support modern applications and services. Additionally, you’ll learn network security concepts and technologies to effectively secure organizations from cyber attacks and threats. The book also shows you how to efficiently discover and resolve networking issues using common troubleshooting techniques. By the end of this book, you’ll have gained sufficient knowledge to efficiently design, implement, and maintain a network infrastructure as a successful network professional within the industry. You’ll also have gained knowledge of all the official CompTIA Network+ N10-008 exam objectives, networking technologies, and how to apply your skills in the real world.
Table of Contents (26 chapters)
Part 1: Networking Concepts
Part 2: Network Implementation
Part 3: Network Operations
Part 4: Network Security and Troubleshooting
Chapter 18: Practice Exam

Lab – analyzing FTP packets

In this hands-on exercise, you will learn how to analyze FTP packets using Wireshark. To get started with this exercise, follow these steps:

  1. Go to and download the iseries.cap file, as shown here:

Figure 6.38 – FTP sample file

  1. Next, launch the Wireshark application on your computer and click on File | Open, as shown here:

Figure 6.39 – Wireshark

  1. Next, the Open Capture File window will appear. Simply navigate to the location where the iseries.cap file is stored, select the file, and click on Open:

Figure 6.40 – Loading a .pcap file

  1. Next, Wireshark loads all the information found within the captured packets and shows the source and destination IP addresses, source and destination service port numbers, protocols, and the data found in each packet: