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

Bandwidth management

Within an organization’s network, many devices and users are sending and receiving messages to/from each other. Some users are uploading and downloading files from the internet, while others are having a teleconference meeting using a Voice over IP (VoIP) or Video over IP solution. Overall, many different traffic types are traveling along a network. Some of these traffic types are using a connection-oriented protocol such as Transport Control Protocol (TCP), while others are using a connectionless protocol such as User Datagram Protocol (UDP).

One of the major differences between TCP and UDP is that TCP provides guaranteed delivery for packets over a network. If a packet is not delivered to its intended destination, the sender will retransmit the message until the destination host provides an acknowledgment. Packets that use TCP as their preferred transport layer protocol have a higher priority on the network because TCP provides guaranteed delivery....