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Index
Title Page
Copyright Page
Dedication
About The Author
Contents
Acknowledgments
Chapter 1 CompTIA Network+ in a Nutshell
Who Needs CompTIA Network+? I Just Want to Learn about Networks!
What Is CompTIA Network+ Certification?
What Is CompTIA?
The Current CompTIA Network+ Certification Exam Release
How Do I Become CompTIA Network+ Certified?
What Is the Exam Like?
How Do I Take the Test?
How Much Does the Test Cost?
How to Pass the CompTIA Network+ Exam
Obligate Yourself
Set Aside the Right Amount of Study Time
Study for the Test
Historical/Conceptual
Chapter 2 Network Models
Historical/Conceptual
Working with Models
Biography of a Model
Network Models
The OSI Seven-Layer Model in Action
Welcome to MHTechEd!
Test Specific
Let’s Get Physical—Network Hardware and Layers 1–2
Beyond the Single Wire—Network Software and Layers 3–7
The TCP/IP Model
The Link Layer
The Internet Layer
The Transport Layer
The Application Layer
Frames, Packets, and Segments/Datagrams, Oh My!
The Tech’s Troubleshooting Tools
Chapter Review
Questions
Answers
Chapter 3 Cabling and Topology
Test Specific
Network Topologies
Bus and Ring
Star
Hybrids
Mesh and Point-to-Multipoint
Point-to-Point
Parameters of a Topology
Cabling and Connectors
Copper Cabling and Connectors
Fiber-Optic Cabling and Connectors
Other Cables
Fire Ratings
Networking Industry Standards—IEEE
Chapter Review
Questions
Answers
Chapter 4 Ethernet Basics
Historical/Conceptual
Ethernet
Topology
Test Specific
Ethernet Frames
CSMA/CD
Early Ethernet Networks
Bus Ethernet
10BaseT
10BaseFL
Extending and Enhancing Ethernet Networks
Couplers
Connecting Ethernet Segments
Switched Ethernet
Troubleshooting Hubs and Switches
Chapter Review
Questions
Answers
Chapter 5 Modern Ethernet
Test Specific
100-Megabit Ethernet
100BaseT
100BaseFX
Gigabit Ethernet
1000BaseCX
1000BaseSX
1000BaseLX
SFF Fiber Connectors
Mechanical Connection Variations
Implementing Multiple Types of Gigabit Ethernet
Ethernet Evolutions
10 Gigabit Ethernet
Beyond Network+
IEEE 802.3ba
Chapter Review
Questions
Answers
Chapter 6 Installing a Physical Network
Historical/Conceptual
Understanding Structured Cabling
Cable Basics—A Star Is Born
Test Specific
Structured Cable Network Components
Structured Cable—Beyond the Star
Installing Structured Cabling
Getting a Floor Plan
Mapping the Runs
Determining the Location of the Telecommunications Room
Pulling Cable
Making Connections
Testing the Cable Runs
NICs
Buying NICs
Link Lights
Diagnostics and Repair of Physical Cabling
Diagnosing Physical Problems
Check Your Lights
Check the NIC
Cable Testing
Problems in the Telecommunications Room
Toners
Chapter Review
Questions
Answers
Chapter 7 TCP/IP Basics
Historical/Conceptual
Standardizing Networking Technology
Test Specific
The TCP/IP Protocol Suite
Internet Layer Protocols
Transport Layer Protocols
Application Layer Protocols
IP in Depth
IP Addresses
IP Addresses in Action
Class IDs
CIDR and Subnetting
Subnetting
CIDR: Subnetting in the Real World
IP Address Assignment
Static IP Addressing
Dynamic IP Addressing
Special IP Addresses
Chapter Review
Questions
Answers
Chapter 8 Routing
Historical/Conceptual
How Routers Work
Test Specific
Routing Tables
Freedom from Layer 2
Network Address Translation
Dynamic Routing
Routing Metrics
Distance Vector and Path Vector
Link State
EIGRP
Dynamic Routing Makes the Internet
Route Redistribution
Working with Routers
Connecting to Routers
Basic Router Configuration
Router Problems
Chapter Review
Questions
Answers
Chapter 9 TCP/IP Applications
Historical/Conceptual
Transport Layer and Network Layer Protocols
How People Communicate
Test Specific
TCP
UDP
ICMP
IGMP
The Power of Port Numbers
Registered Ports
Connection Status
Rules for Determining Good vs. Bad Communications
Common TCP/IP Applications
The World Wide Web
Telnet and SSH
E-mail
FTP
Internet Applications
Chapter Review
Questions
Answers
Chapter 10 Network Naming
Test Specific
Before DNS
NetBIOS/NetBEUI
hosts
DNS
How DNS Works
DNS Servers
Troubleshooting DNS
Diagnosing TCP/IP Networks
Chapter Review
Questions
Answers
Chapter 11 Securing TCP/IP
Test Specific
Making TCP/IP Secure
Encryption
Integrity
Nonrepudiation
Authentication
Authorization
TCP/IP Security Standards
User Authentication Standards
Encryption Standards
Combining Authentication and Encryption
Secure TCP/IP Applications
HTTPS
SCP
SFTP
SNMP
LDAP
NTP
Chapter Review
Questions
Answers
Chapter 12 Advanced Networking Devices
Client/Server and Peer-to-Peer Topologies
Historical/Conceptual
Client/Server
Peer-to-Peer
Test Specific
Client/Server and Peer-to-Peer Today
Virtual Private Networks
PPTP VPNs
L2TP VPNs
SSL VPNs
Switch Management
Virtual LANs
Trunking
Configuring a VLAN-capable Switch
Tagging
VLAN Trunking Protocol
InterVLAN Routing
DHCP and VLANs
Troubleshooting VLANs
Multilayer Switches
Load Balancing
QoS and Traffic Shaping
Port Bonding
Network Protection
Chapter Review
Questions
Answers
Chapter 13 IPv6
Test Specific
IPv6 Basics
IPv6 Address Notation
Link-Local Address
IPv6 Subnet Masks
The End of Broadcast
Global Unicast Address
Aggregation
Using IPv6
Enabling IPv6
NAT in IPv6
DHCP in IPv6
DNS in IPv6
Moving to IPv6
IPv4 and IPv6
Tunnels
Overlay Tunnels
IPv6 Is Here, Really!
Chapter Review
Questions
Answers
Chapter 14 Remote Connectivity
Historical/Conceptual
Telephony and Beyond
The Dawn of Long Distance
Test Specific
Digital Telephony
Copper Carriers: T1 and T3
Fiber Carriers: SONET/SDH and OC
Packet Switching
Real-World WAN
Alternative to Telephony WAN
The Last Mile
Dial-Up
DSL
Broadband Cable
Satellite
Cellular WAN
Fiber
BPL
Which Connection?
Using Remote Access
Dial-Up to the Internet
Private Dial-Up
Dedicated Connection
Remote Terminal
WAN Troubleshooting Scenarios
Loss of Internet Connectivity
Interface Errors
DNS Issues
Interference
Chapter Review
Questions
Answers
Chapter 15 Wireless Networking
Historical/Conceptual
Test Specific
Wi-Fi Standards
802.11
802.11b
802.11a
802.11g
802.11n
802.11ac
WPS
Wi-Fi Security
Enterprise Wireless
WLAN vs. PAN
Implementing Wi-Fi
Performing a Site Survey
Installing the Client
Setting Up an Ad Hoc Network
Setting Up an Infrastructure Network
Extending the Network
Verifying the Installation
Troubleshooting Wi-Fi
No Connection
Slow Connection
Weird Connection
Chapter Review
Questions
Answers
Chapter 16 Virtualization and Cloud Computing
Historical/Conceptual
What Is Virtualization?
Meet the Hypervisor
Emulation vs. Virtualization
Desktop Virtualization
Test Specific
Why Do We Virtualize?
Power Saving
Hardware Consolidation
System Recovery
System Duplication
Research
Virtualization in Modern Networks
Hypervisors
Scaling Virtualization
To the Cloud
The Service-Layer Cake
Ownership and Access
Chapter Review
Questions
Answers
Chapter 17 Building a Real-World Network
Test Specific
Designing a Basic Network
Define the Network Needs
Documentation
Network Design
Compatibility Issues
Internal Connections
External Connections
Unified Communication
It Started with VoIP
Unified Communication Features
VTC and Medianets
ICS
DCS
PLC
SCADA
Chapter Review
Questions
Answers
Chapter 18 Managing Risk
Test Specific
Risk Management
Security Policies
Change Management
Patching and Updates
Training
Points of Failure
Standard Business Documents
Security Preparedness
Contingency Planning
Incident Response
Disaster Recovery
Business Continuity
Forensics
Safety
Electrical Safety
Physical/Installation Safety
Rack Installation and Maintenance
Emergency Procedures
Chapter Review
Questions
Answers
Chapter 19 Protecting Your Network
Test Specific
Network Threats
Spoofing
Packet/Protocol Abuse
Zero-Day Attacks
ARP Cache Poisoning
Denial of Service
Man-in-the-Middle
Session Hijacking
Brute Force
Physical/Local Access
Malware
Social Engineering
Common Vulnerabilities
Unnecessary Running Services
Unpatched/Legacy Systems
Unencrypted Channels
Cleartext Credentials
RF Emanation
Hardening Your Network
Physical Security
Network Security
Host Security
Firewalls
Types of Firewalls
Implementing and Configuring Firewalls
Troubleshooting Firewalls
Chapter Review
Questions
Answers
Chapter 20 Network Monitoring
Test Specific
SNMP
Monitoring Tools
Packet Sniffers
Packet Analyzers
Interface Monitors
Performance Monitors
Putting It All Together
Scenario: Monitoring and Managing
SIEM
Chapter Review
Questions
Answers
Chapter 21 Network Troubleshooting
Test Specific
Troubleshooting Tools
Hardware Tools
Software Tools
The Troubleshooting Process
Identify the Problem
Establish a Theory of Probable Cause
Test the Theory to Determine Cause
Establish a Plan of Action and Identify Potential Effects
Implement the Solution or Escalate as Necessary
Verify Full System Functionality and Implement Preventative Measures
Document Findings, Actions, and Outcomes
Resolving Common Network Issues
“We Can’t Access Our Web Server in Istanbul!”
Hands-On Problems
LAN Problems
WAN Problems
Beyond Local—Escalate
End-to-End Connectivity
Troubleshooting Is Fun!
Internet of Things
Utopia of Things
Challenges?
Supporting Technologies
Looking Ahead
Chapter Review
Questions
Answers
Appendix A Objective Map: CompTIA Network+
Appendix B Create Your Study Plan
Review Your Overall Score
Review Your Score by CompTIA Network+ Exam Domain
Appendix C About the Download
Media Center Download
Playing the Mike Meyers Introduction Video
Downloading Total Tester Exam Software
Installing and Running Total Tester
About Total Tester
About the Assessment Test
TotalSims for Network+
Mike’s Video Training
Mike’s Cool Tools
Technical Support
Total Seminars Technical Support
McGraw-Hill Education Content Support
Glossary
Index
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