CompTIA Network+ Study Guide
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Оглавление
Todd Lammle. CompTIA Network+ Study Guide
Acknowledgments
About the Authors
Introduction
Assessment Test
Answers to the Assessment Test
Chapter 1. Introduction to Networks
First Things First: What's a Network?
Physical Network Topologies
Topology Selection, Backbones, and Segments
Summary
Exam Essentials
Written Labs
Review Questions
Chapter 2. The Open Systems Interconnection Specifications
Internetworking Models
The OSI Reference Model
Introduction to Encapsulation
Modulation Techniques
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 3. Networking Topologies, Connectors, and Wiring Standards
Physical Media
Cable Properties
Wiring Standards
Installing Wiring Distributions
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 4. The Current Ethernet Specifications
Network Basics
Ethernet Basics
Ethernet at the Data Link Layer
Ethernet at the Physical Layer
Ethernet over Other Standards (IEEE 1905.1-2013)
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 5. Networking Devices
Common Network Connectivity Devices
Other Specialized Devices
Planning and Implementing a Basic SOHO Network Using Network Segmentation
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 6. Introduction to the Internet Protocol
Introducing TCP/IP
Data Encapsulation
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 7. IP Addressing
IP Terminology
The Hierarchical IP Addressing Scheme
IPv4 Address Types
Internet Protocol Version 6 (IPv6)
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 8. IP Subnetting, Troubleshooting IP, and Introduction to NAT
Subnetting Basics
Troubleshooting IP Addressing
Introduction to Network Address Translation (NAT)
Summary
Exam Essentials
Written Labs
Review Questions
Chapter 9. Introduction to IP Routing
Routing Basics
The IP Routing Process
Testing Your IP Routing Understanding
Static and Dynamic Routing
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 10. Routing Protocols
Routing Protocol Basics
Distance Vector Routing Protocols
Link State Routing Protocols
High Availability
IPv6 Routing Protocols
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 11. Switching and Virtual LANs
Networking Before Layer 2 Switching
Switching Services
Spanning Tree Protocol
Virtual LANs
VLAN Trunking Protocol
Two Additional Advanced Features of Switches
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 12. Wireless Networking
Introduction to Wireless Technology
The 802.11 Standards
Comparing 802.11 Standards
Wireless Network Components
Installing a Wireless Network
Site Survey
Wireless Security
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 13. Authentication and Access Control
Security Filtering
Managing User Account and Password Security
User-Authentication Methods
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 14. Network Threats and Mitigation
Recognizing Security Threats
Vulnerabilities
Understanding Mitigation Techniques
Policies and Procedures
Anti-malware software
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 15. Physical Security and Risk
Using Hardware and Software Security Devices
Defining Firewalls
Firewall Technologies
Firewalls at the Application Layer vs the Network Layer
Scanning Services and Other Firewall Features
Intrusion Detection and Prevention Systems
VPN Concentrators
Understanding Problems Affecting Device Security
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 16. Wide Area Networks
What's a WAN?
T-Series Connections
Transmission Media
Broadband Services
Wireless WAN Technologies
WAN Protocols
WAN Troubleshooting
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 17. Troubleshooting Tools
Protocol Analyzers
Throughput Testers
Connectivity Software
Using Traceroute
Using ipconfig and ifconfig
Using the ping Utility
Using the Address Resolution Protocol
Using the nslookup Utility
Resolving Names with the Hosts Table
Using the Mtr Command (pathping)
Using the route Command
Using the nbtstat Utility
Using the netstat Utility
Using the File Transfer Protocol
Using the Telnet Utility
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 18. Software and Hardware Tools
Understanding Network Scanners
Baseline
Network Monitoring and Logging
Identifying Hardware Tools
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 19. Network Troubleshooting
Narrowing Down the Problem
Troubleshooting Steps
Troubleshooting Tips
Summary
Exam Essentials
Written Lab
Review Questions
Chapter 20. Management, Monitoring, and Optimization
Managing Network Documentation
Network Monitoring
Network Optimization
Summary
Exam Essentials
Written Lab
Review Questions
Appendix A. Answers to the Written Labs
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17
Chapter 18
Chapter 19
Chapter 20
Appendix B. Answers to Review Questions
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17
Chapter 18
Chapter 19
Chapter 20
Appendix C. Subnetting Class A
Subnetting Practice Examples: Class A Addresses
Subnetting in Your Head: Class A Addresses
Written Lab 1
Written Lab 2
Answers to Written Lab 1
Answers to Written Lab 2
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Отрывок из книги
Kim Wimpsett was the development editor of this, the newest book in the Sybex CompTIA series. Thank you, Kim, for working so hard on this book with me.
Kenyon Brown is my new acquisitions editor for this book. Thank you, Kenyon, for making this book a reality!
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And here are the disadvantages to using a star topology:
There are two more sophisticated implementations of a star topology. The first is called a point-to-point link, where you have not only the device in the center of the spoke acting as a hub but also on the other end, which extends the network. This is still a star-wired topology, but as I'm sure you can imagine, it gives you a lot more scalability!
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