book

CompTIA Network+ Study Guide, 5th Edition

by Todd Lammle

October 2021

Intermediate to advanced

1040 pages

27h 26m

English

Sybex

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About the Technical Editor
N10-008 Exam ObjectivesObjective MapAssessment TestAnswers to Assessment Test
First Things First: What's a Network?Physical Network TopologiesTopology Selection, Backbones, and SegmentsSummaryExam EssentialsWritten LabReview Questions
Internetworking ModelsThe OSI Reference ModelIntroduction to EncapsulationModulation TechniquesSummaryExam EssentialsWritten LabReview Questions
Physical MediaCable PropertiesWiring StandardsInstalling Wiring DistributionsSummaryExam EssentialsWritten LabReview Questions
Network BasicsEthernet BasicsEthernet at the Data Link LayerEthernet at the Physical LayerEthernet over Other Standards (IEEE 1905.1-2013)SummaryExam EssentialsWritten LabReview Questions

Common Network Connectivity DevicesOther Specialized DevicesNetworked DevicesPlanning and Implementing a Basic SOHO Network Using Network SegmentationSummaryExam EssentialsWritten LabReview Questions
Introducing TCP/IPData EncapsulationSummaryExam EssentialsWritten LabReview Questions
IP TerminologyThe Hierarchical IP Addressing SchemeIPv4 Address TypesInternet Protocol Version 6 (IPv6)SummaryExam EssentialsWritten LabsReview Questions
Subnetting BasicsTroubleshooting IP AddressingIntroduction to Network Address Translation (NAT)SummaryExam EssentialsWritten LabReview Questions
Routing BasicsThe IP Routing ProcessTesting Your IP Routing UnderstandingStatic and Dynamic RoutingSummaryExam EssentialsWritten LabReview Questions
Routing Protocol BasicsDistance-Vector Routing ProtocolsLink-State Routing ProtocolsHigh AvailabilityAdvanced IPv6 ConceptsIPv6 Routing ProtocolsSummaryExam EssentialsWritten LabReview Questions
Networking Before Layer 2 SwitchingSwitching ServicesSpanning Tree ProtocolVirtual LANsVLAN Trunking ProtocolTwo Additional Advanced Features of SwitchesSummaryExam EssentialsWritten LabReview Questions
Introduction to Wireless TechnologyCellular TechnologiesThe 802.11 Standards (Regulatory Impacts)Comparing 802.11 StandardsWireless Network ComponentsInstalling a Wireless NetworkSite SurveyWireless SecuritySummaryExam EssentialsWritten LabReview Questions
Performance Metrics/SensorsSNMPNetwork Device LogsInterface Statistics/StatusInterface Errors or AlertsEnvironmental Factors and SensorsBaselinesNetFlow DataUptime/DowntimeSummaryExam EssentialsWritten LabReview Questions
Plans and ProceduresHardening and Security PoliciesCommon DocumentationCommon AgreementsSummaryExam EssentialsWritten LabReview Questions
Load BalancingMultipathingNetwork Interface Card (NIC) TeamingRedundant Hardware/ClustersFacilities and Infrastructure SupportRedundancy and High Availability (HA) ConceptsMean Time to Repair (MTTR)Mean Time Between Failure (MTBF)Recovery Time Objective (RTO)Recovery Point Objective (RPO)Network Device Backup/RestoreSummaryExam EssentialsWritten LabReview Questions
Confidentiality, Integrity, and Availability (CIA)ThreatsVulnerabilitiesLeast PrivilegeRole-Based AccessZero TrustDefense in DepthAuthentication MethodsSecurity Risk AssessmentsSecurity Information and Event Management (SIEM)SummaryExam EssentialsWritten LabReview Questions
Technology-Based AttacksHuman and EnvironmentalSummaryExam EssentialsWritten LabReview Questions
Best PracticesWireless SecurityIoT Access ConsiderationsSummaryExam EssentialsWritten LabReview Questions
Site-to-Site VPNClient-to-Site VPNRemote Desktop ConnectionRemote Desktop GatewaySSHVirtual Network Computing (VNC)Virtual DesktopAuthentication and Authorization ConsiderationsIn-Band vs. Out-of-Band ManagementSummaryExam EssentialsWritten LabReview Questions
Detection MethodsPrevention MethodsAsset DisposalSummaryExam EssentialsWritten LabReview Questions
Data Center Network ArchitecturesSoftware-Defined NetworkingTraffic FlowsBranch Office vs. On-premises Data Center vs. ColocationCloud Computing and Its Effect on the Enterprise NetworkOverview of Network Programmability in Enterprise NetworkApplication Programming Interfaces (APIs)Managing Network DocumentationNetwork MonitoringNetwork OptimizationSummaryExam EssentialsWritten LabReview Questions
Performance Metrics/SensorsNetwork MetricsNetwork Device LogsInterface Statistics/StatusInterface ErrorsBaselineNetFlowUptimeDowntimeSummaryExam EssentialsWritten LabReview Questions
Identifying Hardware ToolsSummaryExam EssentialsWritten LabReview Questions
Narrowing Down the ProblemTroubleshooting StepsTroubleshooting TipsSummaryExam EssentialsWritten LabReview Questions
Software ToolsUsing tracerouteUsing ipconfig, ifconfig, and ipUsing the iptables UtilityUsing the ping UtilityUsing the Address Resolution ProtocolUsing the arp UtilityUsing the nslookup UtilityResolving Names with the Hosts FileUsing the Mtr Command (pathping)Using the Nmap UtilityUsing the route CommandUsing the nbtstat UtilityUsing the netstat UtilityUsing tcpdumpUsing the File Transfer ProtocolUsing the Telnet UtilitySummaryExam EssentialsWritten LabReview Questions
Chapter 1: Introduction to NetworksChapter 2: The Open Systems Interconnection SpecificationsChapter 3: Networking Connectors and Wiring StandardsChapter 4: The Current Ethernet SpecificationsChapter 5: Networking DevicesChapter 6: Introduction to the Internet ProtocolChapter 7: IP AddressingChapter 8: IP Subnetting, Troubleshooting IP, and Introduction to NATChapter 9: Introduction to IP RoutingChapter 10: Routing ProtocolsChapter 11: Switching and Virtual LANsChapter 12: Wireless NetworkingChapter 13: Using Statistics and Sensors to Ensure Network AvailabilityChapter 14: Organizational Documents and PoliciesChapter 15: High Availability and Disaster RecoveryChapter 16: Common Security ConceptsChapter 17: Common Types of AttacksChapter 18: Network Hardening TechniquesChapter 19: Remote Access SecurityChapter 20: Physical SecurityChapter 21: Data Center Architecture and Cloud ConceptsChapter 22: Ensuring Network AvailabilityChapter 23: Cable Connectivity Issues and ToolsChapter 24: Network Troubleshooting MethodologyChapter 25: Network Software Tools and Commands
Chapter 1: Introduction to NetworksChapter 2: The Open Systems Interconnection SpecificationsChapter 3: Networking Connectors and Wiring StandardsChapter 4: The Current Ethernet SpecificationsChapter 5: Networking DevicesChapter 6: Introduction to the Internet ProtocolChapter 7: IP AddressingChapter 8: IP Subnetting, Troubleshooting IP, and Introduction to NATChapter 9: Introduction to IP RoutingChapter 10: Routing ProtocolsChapter 11: Switching and Virtual LANsChapter 12: Wireless NetworkingChapter 13: Using Statistics and Sensors to Ensure Network AvailabilityChapter 14: Organizational Documents and PoliciesChapter 15: High Availability and Disaster RecoveryChapter 16: Common Security ConceptsChapter 17: Common Types of AttacksChapter 18: Network Hardening TechniquesChapter 19: Remote Access SecurityChapter 20: Physical SecurityChapter 21: Data Center Architecture and Cloud ConceptsChapter 22: Ensuring Network AvailabilityChapter 23: Cable Connectivity Issues and ToolsChapter 24: Network Troubleshooting MethodologyChapter 25: Network Software Tools and Commands
Subnetting Practice Examples: Class A AddressesSubnetting in Your Head: Class A AddressesWritten Lab 1Written Lab 2Answers to Written Lab 1Answers to Written Lab 2
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Content preview from CompTIA Network+ Study Guide, 5th Edition

Chapter 2The Open Systems Interconnection Specifications

In this chapter, we're going to analyze the Open Systems Interconnection (OSI) model. I'll thoroughly describe each part to you in detail because it's ...