Book Image

CompTIA Network+ Certification Guide

By : Glen D. Singh, Rishi Latchmepersad
Book Image

CompTIA Network+ Certification Guide

By: Glen D. Singh, Rishi Latchmepersad

Overview of this book

CompTIA certified professionals have always had the upper hand in the information technology industry. This book will be your ideal guide to efficiently passing and achieving this certification. Learn from industry experts and implement their practices to resolve complex IT issues. This book revolves around networking concepts where readers will learn topics like network architecture, security, network monitoring, and troubleshooting. This book will not only prepare the readers conceptually but will also help them pass the N10-007 exam. This guide will also provide practice exercise after every chapter where readers can ensure their concepts are clear. By the end of this book, readers will leverage this guide and the included practice questions to boost their confidence in appearing for the actual certificate.

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Table of Contents (17 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
The OSI Reference Model and the TCP/IP Stack
The OSI Reference Model and the TCP/IP Stack
The OSI reference model
The TCP/IP protocol suite
Summary
Questions
2
Network Ports, Protocols, and Topologies
Network Ports, Protocols, and Topologies
Technical requirements
Network port numbers
Network protocols
Protocol types
Protocols and ports
Network topologies
Types of networks
Introducing Ethernet and its evolution
Summary
Questions
Further reading
3
Ethernet
Ethernet
What is Ethernet?
The sublayers of Ethernet
Fields in an Ethernet frame
MAC addresses
Transmission types at the Data Link Layer
The CAM table
Summary
Questions
4
Understanding IPv4 and IPv6
Understanding IPv4 and IPv6
IPv4 concepts
Subnet mask
Determining the Network ID
Special IPv4 addresses
IPv4 transmission types
Subnetting
IP version 6 concepts
IPv6 transmission types
Configuring an IP address on a Windows system
Configuring an IP address on a Linux system
Configuring an IP address on a Cisco IOS router
Summary
Questions
Further reading
5
Routing and Switching Concepts
Routing and Switching Concepts
Properties of network traffic
Network segmentation
Spanning Tree Protocol (STP)
Routing protocols
Network Address Translation (NAT)
Summary
Questions
6
Wireless and Cloud Technologies
Wireless and Cloud Technologies
Wireless technologies
802.11 wireless standards
Frequencies
Cellular technologies
Antenna and power requirements
Types of wireless LAN topologies
Wireless router configurations
Cloud computing
Summary
Questions
Further reading
7
Network Components
Network Components
Networking cables and connector types
Networking devices and their deployment
Summary
Questions
Further reading
8
Network Virtualization and WAN Technologies
Network Virtualization and WAN Technologies
Virtualization with networking concepts
Virtual networking components
Storage technologies
WAN technologies
Summary
Questions
Further reading
9
Business Continuity and Disaster Recovery Concepts
Business Continuity and Disaster Recovery Concepts
The role of documentation and diagrams
Business continuity and disaster recovery
Common operational processes
Summary
Questions
Further reading
10
Network Identity Management and Policies
Network Identity Management and Policies
Remote access methodologies
Identity policies and best practices
Summary
Questions
11
Network Security Concepts
Network Security Concepts
Wireless security
Network attacks and threats
Securing networking devices
Mitigation techniques
Summary
Questions
Further reading
12
TCP/IP Security
TCP/IP Security
Vulnerabilities at the Application Layer
Vulnerabilities at the Transport Layer
Vulnerabilities at the Internet Layer
Vulnerabilities at the Network Access/Link Layer
Securing TCP/IP using a DiD approach
Summary
Questions
13
Organizational Security
Organizational Security
Physical security
Prevention techniques
Authentication concepts
Multi-Factor Authentication (MFA)
Summary
Questions
14
Troubleshooting a Network
Troubleshooting a Network
Proper network troubleshooting methodology
Utilizing appropriate troubleshooting tools
Common issues on wired networks
Common issues on wireless networks
Common network service issues
Summary
Questions
Further reading
15
Assessment
Assessment
Chapter 1: The OSI Reference Model and the TCP/IP Stack
Chapter 2: Network Ports, Protocols, and Topologies
Chapter 3: Ethernet
Chapter 4: Understanding IPv4 and IPv6
Chapter 5: Routing and Switching Concepts
Chapter 6: Wireless and Cloud Technologies
Chapter 7: Network Components
Chapter 8: Network Virtualization and WAN Technologies
Chapter 9: Business Continuity and Disaster Recovery Concepts
Chapter 10: Network Identity Management and Policies
Chapter 11: Network Security Concepts
Chapter 12: TCP/IP Security
Chapter 13: Organizational Security
Chapter 14: Troubleshooting a Network
16
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Configuring an IP address on a Linux system

Go through the following steps to configure IP addressing on a Linux system (Debian):

  1. In the top-right corner, click on the drop-down arrow and select the gear icon:
  1. Select Network and click the gear icon under the Wired section:
  1. Similar to Windows, the adapter settings will open. Click on the IPv4 tab to adjust the IPv4 settings. Use the Automatic (DHCP) option to allow the adapter to receive IP addressing information automatically:

If you click on the IPv6 tab, you'll have options available so that you can configure the adapter to work with an IPv6 network:

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