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CompTIA Network+ Certification All-in-One Exam Guide, Seventh Edition (Exam N10-007), 7th Edition

Book Description

Thoroughly revised for the new CompTIA Network+ exam, the Seventh Edition of this bestselling All-in-One Exam Guide delivers 100% coverage of the exam objectives and serves as a valuable on-the-job reference

Take the latest version of the CompTIA Network+ exam with complete confidence using the fully updated information contained in this comprehensive self-study system. The book offers clear instruction and real-world examples from training expert and bestselling author Mike Meyers along with hundreds of accurate practice questions.

Fulfilling the promise of the All-in-One series, this complete reference serves both as a study tool and a valuable on-the-job reference that will serve readers beyond the exam. CompTIA Network+ Certification All-in-One Exam Guide, Seventh Edition (Exam N10-007) also includes access to free video training and interactive hands-on labs and simulations that prepare you for difficult performance-based questions. A valuable pre-assessment test enables readers to gauge their familiarity with the test’s objectives and tailor an effective course for study.

· Contains complete coverage of every objective for the CompTIA Network+ Certification exam

· Written by CompTIA training and certification guru Mike Meyers

· Electronic content includes the Total Tester exam simulator with over 100 practice questions, over an hour of training videos, and a collection of Mike Meyers’ favorite shareware and freeware networking utilities



Table of Contents

  1. Cover
  2. Title Page
  3. Copyright Page
  4. Dedication
  5. About the Author
  6. Contents at a Glance
  7. Contents
  8. Acknowledgments
  9. Introduction
  10. Chapter 1 Network Models
    1. Historical/Conceptual
    2. Working with Models
      1. Biography of a Model
      2. Network Models
    3. The OSI Seven-Layer Model in Action
      1. Welcome to MHTechEd!
    4. Test Specific
      1. Let’s Get Physical—Network Hardware and Layers 1–2
      2. Beyond the Single Wire—Network Software and Layers 3–7
    5. The TCP/IP Model
      1. The Link Layer
      2. The Internet Layer
      3. The Transport Layer
      4. The Application Layer
      5. Frames, Packets, and Segments/Datagrams, Oh My!
    6. The Tech’s Troubleshooting Tools
    7. Chapter Review
      1. Questions
      2. Answers
  11. Chapter 2 Cabling and Topology
    1. Test Specific
    2. Network Topologies
      1. Bus and Ring
      2. Star
      3. Hybrid
      4. Mesh
      5. Parameters of a Topology
    3. Cabling and Connectors
      1. Copper Cabling and Connectors
      2. Fiber-Optic Cabling and Connectors
      3. Other Cables
      4. Fire Ratings
    4. Networking Industry Standards—IEEE
    5. Chapter Review
      1. Questions
      2. Answers
  12. Chapter 3 Ethernet Basics
    1. Historical/Conceptual
    2. Ethernet
      1. 802.3 Standards
    3. Test Specific
      1. Ethernet Frames
    4. Early Ethernet Standards
      1. Bus Ethernet
      2. 10BaseT
      3. 10BaseFL
      4. CSMA/CD
    5. Enhancing and Extending Ethernet Networks
      1. The Trouble with Hubs
      2. Switches to the Rescue
      3. Connecting Ethernet Segments
      4. Troubleshooting Switches
    6. Chapter Review
      1. Questions
      2. Answers
  13. Chapter 4 Modern Ethernet
    1. Test Specific
    2. 100-Megabit Ethernet
      1. 100BaseT
      2. 100BaseFX
    3. Gigabit Ethernet
      1. 1000BaseSX
      2. 1000BaseLX
      3. SFF Fiber Connectors
      4. Mechanical Connection Variations
      5. Implementing Multiple Types of Gigabit Ethernet
    4. Ethernet Evolutions
      1. 10 Gigabit Ethernet
    5. Beyond Network+
      1. IEEE 802.3ba
    6. Chapter Review
      1. Questions
      2. Answers
  14. Chapter 5 Installing a Physical Network
    1. Historical/Conceptual
    2. Understanding Structured Cabling
      1. Cable Basics—A Star Is Born
    3. Test Specific
      1. Structured Cable—Network Components
      2. Structured Cable—Beyond the Star
    4. Installing Structured Cabling
      1. Getting a Floor Plan
      2. Mapping the Runs
      3. Determining the Location of the Telecommunications Room
      4. Pulling Cable
      5. Making Connections
      6. Testing the Cable Runs
    5. NICs
      1. Buying NICs
      2. Link Lights
    6. Diagnostics and Repair of Physical Cabling
      1. Diagnosing Physical Problems
      2. Check Your Lights
      3. Check the NIC
      4. Cable Testing
      5. Problems in the Telecommunications Room
      6. Toners
    7. Chapter Review
      1. Questions
      2. Answers
  15. Chapter 6 TCP/IP Basics
    1. Historical/Conceptual
    2. Test Specific
    3. The TCP/IP Protocol Suite
      1. Internet Layer Protocols
      2. Transport Layer Protocols
      3. Application Layer Protocols
      4. IP and Ethernet
      5. IP Addresses
      6. IP Addresses in Action
      7. Class IDs
    4. CIDR and Subnetting
      1. Subnetting
      2. CIDR: Subnetting in the Real World
    5. IP Address Assignment
      1. Static IP Addressing
      2. Dynamic IP Addressing
      3. Special IP Addresses
    6. Chapter Review
      1. Questions
      2. Answers
  16. Chapter 7 Routing
    1. Historical/Conceptual
    2. How Routers Work
    3. Test Specific
      1. Routing Tables
      2. Freedom from Layer 2
      3. Network Address Translation
    4. Dynamic Routing
      1. Routing Metrics
      2. Distance Vector and Path Vector
      3. Link State
      4. EIGRP
      5. Dynamic Routing Makes the Internet
      6. Route Redistribution
    5. Working with Routers
      1. Connecting to Routers
      2. Basic Router Configuration
      3. Router Problems
    6. Chapter Review
      1. Questions
      2. Answers
  17. Chapter 8 TCP/IP Applications
    1. Historical/Conceptual
    2. Transport Layer and Network Layer Protocols
      1. How People Communicate
    3. Test Specific
      1. TCP
      2. UDP
      3. ICMP
      4. IGMP
    4. The Power of Port Numbers
      1. Registered Ports
      2. Connection Status
      3. Rules for Determining Good vs. Bad Communications
    5. Common TCP/IP Applications
      1. The World Wide Web
      2. Telnet and SSH
      3. E-mail
      4. FTP
      5. Internet Applications
    6. Chapter Review
      1. Questions
      2. Answers
  18. Chapter 9 Network Naming
    1. Test Specific
    2. Before DNS
      1. NetBIOS
      2. hosts
    3. DNS
      1. How DNS Works
      2. DNS Servers
      3. Troubleshooting DNS
    4. Diagnosing TCP/IP Networks
    5. Chapter Review
      1. Questions
      2. Answers
  19. Chapter 10 Securing TCP/IP
    1. Test Specific
    2. Making TCP/IP Secure
      1. Encryption
      2. Integrity
      3. Nonrepudiation
      4. Authentication
      5. Authorization
    3. TCP/IP Security Standards
      1. User Authentication Standards
      2. Encryption Standards
      3. Combining Authentication and Encryption
    4. Secure TCP/IP Applications
      1. HTTPS
      2. SCP
      3. SFTP
      4. SNMP
      5. LDAP
      6. NTP
    5. Chapter Review
      1. Questions
      2. Answers
  20. Chapter 11 Advanced Networking Devices
    1. Test Specific
    2. Virtual Private Networks
      1. PPTP VPNs
      2. L2TP VPNs
      3. SSL VPNs
      4. DTLS VPNs
      5. DMVPN
      6. Alternative VPNs
    3. Switch Management
    4. Virtual LANs
      1. Trunking
      2. Configuring a VLAN-Capable Switch
      3. Tagging
      4. VLAN Trunking Protocol
      5. InterVLAN Routing
      6. DHCP and VLANs
      7. Troubleshooting VLANs
    5. Multilayer Switches
      1. Load Balancing
      2. QoS and Traffic Shaping
      3. Port Bonding
      4. Network Protection
    6. Chapter Review
      1. Questions
      2. Answers
  21. Chapter 12 IPv6
    1. Test Specific
    2. IPv6 Basics
      1. IPv6 Address Notation
      2. Link-Local Address
      3. IPv6 Prefix Lengths
      4. The End of Broadcast
      5. Global Unicast Address
      6. Aggregation
    3. Using IPv6
      1. It Just Works
      2. DHCPv6
      3. DNS in IPv6
    4. Moving to IPv6
      1. IPv4 and IPv6
      2. Transition Mechanisms
    5. Chapter Review
      1. Questions
      2. Answers
  22. Chapter 13 Remote Connectivity
    1. Historical/Conceptual
    2. Telephony and Beyond
      1. The Dawn of Long Distance
    3. Test Specific
      1. Digital Telephony
      2. Copper Carriers: T1 and T3
      3. Fiber Carriers: SONET/SDH and OC
      4. Packet Switching
      5. Real-World WAN
      6. Alternative to Telephony WAN
    4. The Last Mile
      1. Dial-Up
      2. DSL
      3. Broadband Cable
      4. Satellite
      5. Fiber
      6. Which Connection?
    5. Using Remote Access
      1. Dial-Up to the Internet
      2. Private Dial-Up
      3. Dedicated Connection
      4. Remote Terminal
    6. WAN Troubleshooting Scenarios
      1. Loss of Internet Connectivity
      2. Interface Errors
      3. DNS Issues
      4. Interference
    7. Chapter Review
      1. Questions
      2. Answers
  23. Chapter 14 Wireless Networking
    1. Historical/Conceptual
    2. Test Specific
    3. Wi-Fi Standards
      1. 802.11
      2. 802.11b
      3. 802.11a
      4. 802.11g
      5. 802.11n
      6. 802.11ac
      7. WPS
      8. Wi-Fi Security
      9. Enterprise Wireless
    4. Implementing Wi-Fi
      1. Performing a Site Survey
      2. Installing the Client
      3. Setting Up an Ad Hoc Network
      4. Setting Up an Infrastructure Network
      5. Extending the Network
      6. Verifying the Installation
    5. Troubleshooting Wi-Fi
      1. No Connection
      2. Slow Connection
      3. Weird Connection
    6. Chapter Review
      1. Questions
      2. Answers
  24. Chapter 15 Virtualization and Cloud Computing
    1. Historical/Conceptual
    2. Concepts of Virtualization
      1. Meet the Hypervisor
      2. Emulation vs. Virtualization
      3. Desktop Virtualization
    3. Test Specific
    4. Virtualization Benefits
      1. Power Saving
      2. Hardware Consolidation
      3. System Recovery
      4. System Duplication
      5. Research
    5. Virtualization in Modern Networks
      1. Hypervisors
      2. Scaling Virtualization
    6. To the Cloud
      1. The Service-Layer Cake
      2. Cloud Delivery Models
    7. Chapter Review
      1. Questions
      2. Answers
  25. Chapter 16 Mobile Networking
    1. Mobile Network Technologies
    2. Test Specific
      1. Cellular WAN
      2. 802.11
      3. Bluetooth
      4. Less Common Mobile Network Technologies
    3. Deployment Models
      1. BYOD
      2. COBO
      3. COPE
      4. CYOD
      5. On-Boarding and Off-Boarding
    4. Scenarios
      1. Geofencing
      2. Locating and Disabling Lost Mobile Devices
      3. Hardening IoT Devices
    5. Chapter Review
      1. Questions
      2. Answers
  26. Chapter 17 Building a Real-World Network
    1. Test Specific
    2. Designing a Basic Network
      1. Define the Network Needs
      2. Documentation
      3. Network Design
      4. Compatibility Issues
      5. Internal Connections
      6. External Connections
    3. Unified Communication
      1. It Started with VoIP
      2. Unified Communication Features
      3. VTC and Medianets
    4. ICS
      1. DCS
      2. PLC
      3. SCADA
    5. Chapter Review
      1. Questions
      2. Answers
  27. Chapter 18 Managing Risk
    1. Test Specific
    2. Risk Management
      1. Security Policies
      2. Change Management
      3. Patching and Updates
      4. Training
      5. Points of Failure
      6. Standard Business Documents
      7. Security Preparedness
    3. Contingency Planning
      1. Incident Response
      2. Disaster Recovery
      3. Business Continuity
      4. Forensics
    4. Safety
      1. Electrical Safety
      2. Physical/Installation Safety
      3. Rack Installation and Maintenance
      4. Emergency Procedures
    5. Chapter Review
      1. Questions
      2. Answers
  28. Chapter 19 Protecting Your Network
    1. Test Specific
    2. Network Threats
      1. Spoofing
      2. Packet/Protocol Abuse
      3. Zero-Day Attacks
      4. ARP Cache Poisoning
      5. Denial of Service
      6. Man-in-the-Middle
      7. Session Hijacking
      8. Brute Force
      9. Physical/Local Access
      10. Malware
      11. Social Engineering
    3. Common Vulnerabilities
      1. Unnecessary Running Services
      2. Unpatched/Legacy Systems
      3. Unencrypted Channels
      4. Cleartext Credentials
      5. RF Emanation
    4. Hardening Your Network
      1. Physical Security
      2. Network Security
      3. Device Hardening
      4. Host Security
    5. Firewalls
      1. Types of Firewalls
      2. Implementing and Configuring Firewalls
      3. Troubleshooting Firewalls
    6. Chapter Review
      1. Questions
      2. Answers
  29. Chapter 20 Network Monitoring
    1. Test Specific
    2. SNMP
    3. Monitoring Tools
      1. Packet Sniffers
      2. Protocol Analyzers
      3. Interface Monitors
      4. Performance Monitors
    4. Putting It All Together
      1. Scenario: Monitoring and Managing
      2. SIEM
    5. Chapter Review
      1. Questions
      2. Answers
  30. Chapter 21 Network Troubleshooting
    1. Test Specific
    2. Troubleshooting Tools
      1. Hardware Tools
      2. Software Tools
    3. The Troubleshooting Process
      1. Identify the Problem
      2. Establish a Theory of Probable Cause
      3. Test the Theory to Determine Cause
      4. Establish a Plan of Action and Identify Potential Effects
      5. Implement the Solution or Escalate as Necessary
      6. Verify Full System Functionality and Implement Preventative Measures
      7. Document Findings, Actions, and Outcomes
    4. Resolving Common Network Service Issues
      1. “We Can’t Access Our Web Server in Istanbul!”
      2. Hands-On Problems
      3. LAN Problems
      4. WAN Problems
      5. Beyond Local—Escalate
      6. End-to-End Connectivity
      7. Troubleshooting Is Fun!
    5. Chapter Review
      1. Questions
      2. Answers
  31. Appendix A   Objective Map: CompTIA Network+
  32. Appendix B   Create Your Study Plan
    1. Review Your Overall Score
    2. Review Your Score by CompTIA Network+ Exam Domain
  33. Appendix C   About the Online Content
    1. System Requirements
    2. Your Total Seminars Training Hub Account
    3. Single User License Terms and Conditions
    4. TotalTester Online
    5. Assessment Test
    6. TotalSims for Network+
    7. Mike’s Video Training
    8. Playing the Mike Meyers Introduction Video
    9. Mike’s Cool Tools
    10. Technical Support
  34. Glossary
  35. Index