Transcription
CompTIA Network N10-008Exam CramEmmett DulaneyA01 Dulaney FM pi-xxxiv.indd 117/07/21 3:10 PM
CompTIA Network N10-008 Exam CramCopyright 2022 by Pearson Education, Inc.All rights reserved. No part of this book shall be reproduced, stored ina retrieval system, or transmitted by any means, electronic, mechanical,photocopying, recording, or otherwise, without written permission from thepublisher. No patent liability is assumed with respect to the use of the information contained herein. Although every precaution has been taken in thepreparation of this book, the publisher and author assume no responsibilityfor errors or omissions. Nor is any liability assumed for damages resultingfrom the use of the information contained herein.ISBN-13: 978-0-13-737576-9ISBN-10: 0-13-737576-XScoutAutomatedPrintCodeTrademarksAll terms mentioned in this book that are known to be trademarks or servicemarks have been appropriately capitalized. Pearson IT Certification cannotattest to the accuracy of this information. Use of a term in this book shouldnot be regarded as affecting the validity of any trademark or service mark.Warning and DisclaimerEvery effort has been made to make this book as complete and as accurateas possible, but no warranty or fitness is implied. The information providedis on an “as is” basis. The author and the publisher shall have neither liabilitynor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book.Special SalesFor information about buying this title in bulk quantities, or for special salesopportunities (which may include electronic versions; custom cover designs;and content particular to your business, training goals, marketing focus,or branding interests), please contact our corporate sales department atcorpsales@pearsoned.com or (800) 382-3419.For government sales inquiries, please contactgovernmentsales@pearsoned.com.For questions about sales outside the U.S., please contactintlcs@pearson.com.Editor-in-ChiefMark TaubDirector ITPProductionManagementBrett BartowExecutive EditorNancy DavisDevelopmentEditorEllie BruManaging EditorSandra SchroederSenior ProjectEditorTonya SimpsonCopy EditorChuck HutchinsonIndexerTimothy WrightProofreaderAbigail ManheimTechnical EditorChris CraytonPublishingCoordinatorCindy TeetersCover DesignerChuti PrasertsithCompositorcodeMantraA01 Dulaney FM pi-xxxiv.indd 217/07/21 3:10 PM
Contents at a GlanceIntroductionxxiiiCHAPTER 1Network Technologies, Topologies, and TypesCHAPTER 2Models, Ports, Protocols, and Network Services41CHAPTER 3Addressing, Routing, and Switching93CHAPTER 4Network Implementations151CHAPTER 5Cabling Solutions and Issues183CHAPTER 6Wireless Solutions and Issues235CHAPTER 7Cloud Computing Concepts and Options269CHAPTER 8Network Operations283CHAPTER 9Network Security343Network Troubleshooting403CHAPTER 101Glossary461Index511A01 Dulaney FM pi-xxxiv new.indd 319/07/21 2:20 PM
Table of ContentsIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiiiCHAPTER 1:Network Technologies, Topologies, and Types. . . . . . . . . . . . . . . . . . . . . . 1Wired and Wireless Network Topologies. . . . . . . . . . . .Bus Topology. . . . . . . . . . . . . . . . . . . . . . . . . . .Ring Topology. . . . . . . . . . . . . . . . . . . . . . . . . . .Star Topology (Hub-and-Spoke). . . . . . . . . . . . . .Mesh Topology. . . . . . . . . . . . . . . . . . . . . . . . . .Hybrid Topology. . . . . . . . . . . . . . . . . . . . . . . . .Bringing Wireless to a Topology. . . . . . . . . . . . . .Infrastructure Wireless Topology. . . . . . . . . .Ad Hoc Wireless Topology. . . . . . . . . . . . . .Wireless Mesh Topology. . . . . . . . . . . . . . .Network Types and Characteristics. . . . . . . . . . . . . . . . .To Server or Not. . . . . . . . . . . . . . . . . . . . . . . . .LANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WLANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SDWANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MPLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .mGRE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Network Links and Concepts. . . . . . . . . . . . . . . . . . . . .DSL Internet Access. . . . . . . . . . . . . . . . . . . . . . .Cable Broadband. . . . . . . . . . . . . . . . . . . . . . . . .The Public Switched Telephone Network. . . . . . . .Leased Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . .T3 Lines. . . . . . . . . . . . . . . . . . . . . . . . . .Metro-Optical. . . . . . . . . . . . . . . . . . . . . . . . . . .Satellite Internet Access. . . . . . . . . . . . . . . . . . . .Termination Points. . . . . . . . . . . . . . . . . . . . . . .Demarc, Demarc Extension, and Smart Jacks.CSUs/DSUs. . . . . . . . . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv new.indd 4. 2. 2. 3. 5. 6. 7. 8. 8. 9. . . . . . . . . . 10. . . . . . . . . . 14. . . . . . . . . . 14. . . . . . . . . . 15. . . . . . . . . . 15. . . . . . . . . . 16. . . . . . . . . . 16. . . . . . . . . . 17. . . . . . . . . . 17. . . . . . . . . . 17. . . . . . . . . . 18. . . . . . . . . . 18. . . . . . . . . . 19. . . . . . . . . . 22. . . . . . . . . . 23. . . . . . . . . . 25. . . . . . . . . . 26. . . . . . . . . . 27. . . . . . . . . . 28. . . . . . . . . . 29. . . . . . . . . . 31. . . . . . . . . . 32. . . . . . . . . . 32. . . . . . . . . . 3419/07/21 2:20 PM
vContentsVerify Wiring Installation and Termination. . . . . . . . . . . . . 34Virtual Networking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39CHAPTER 2:Models, Ports, Protocols, and Network Services. . . . . . . . . . . . . . . . . . . . 41The OSI Networking Model. . . . . . . . . . . . . . . . . . . . . . . .The OSI Seven-Layer Model. . . . . . . . . . . . . . . . . . .Physical Layer (Layer 1). . . . . . . . . . . . . . . . . . .Data Link Layer (Layer 2). . . . . . . . . . . . . . . . .Network Layer (Layer 3). . . . . . . . . . . . . . . . . .Transport Layer (Layer 4). . . . . . . . . . . . . . . . . .Session Layer (Layer 5). . . . . . . . . . . . . . . . . . .Presentation Layer (Layer 6). . . . . . . . . . . . . . . .Application Layer (Layer 7). . . . . . . . . . . . . . . .OSI Model Summary. . . . . . . . . . . . . . . . . . . . .Comparing OSI to the Four-Layer TCP/IP Model. . . .Identifying the OSI Layers at Which Various NetworkComponents Operate. . . . . . . . . . . . . . . . . . . . . . . .Data Encapsulation/Decapsulation and OSI. . . . . . . . .Ports and Protocols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Connection-Oriented Protocols Versus ConnectionlessProtocols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Internet Protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . .Transmission Control Protocol. . . . . . . . . . . . . . . . . .How TCP Works. . . . . . . . . . . . . . . . . . . . . . .User Datagram Protocol. . . . . . . . . . . . . . . . . . . . . . .Internet Control Message Protocol. . . . . . . . . . . . . . .IPSec. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Generic Routing Encapsulation. . . . . . . . . . . . . . . . . .File Transfer Protocol. . . . . . . . . . . . . . . . . . . . . . . . .Secure Shell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Secure File Transfer Protocol. . . . . . . . . . . . . . . . . . .Telnet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Simple Mail Transfer Protocol. . . . . . . . . . . . . . . . . . .Domain Name System (DNS). . . . . . . . . . . . . . . . . . .Dynamic Host Configuration Protocol (DHCP). . . . . .Trivial File Transfer Protocol. . . . . . . . . . . . . . . . . . . .Hypertext Transfer Protocol. . . . . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv.indd 5.4242434444454646474748. . . . . . . 49. . . . . . . 49. . . . . . . 53.545455565657575858606161626262636417/07/21 3:10 PM
viCompTIA Network N10-008 Exam CramNetwork Time Protocol (NTP). . . . . . . . . . . . .Post Office Protocol Version 3/Internet MessageAccess Protocol Version 4. . . . . . . . . . . . . . . .Simple Network Management Protocol. . . . . . .Components of SNMP. . . . . . . . . . . . . . .SNMP Management Systems. . . . . . . . . .SNMP Agents. . . . . . . . . . . . . . . . . . . . .Management Information Bases. . . . . . . . .SNMP Communities. . . . . . . . . . . . . . . .SNMPv3. . . . . . . . . . . . . . . . . . . . . . . .Lightweight Directory Access Protocol. . . . . . . .Hypertext Transfer Protocol Secure. . . . . . . . . .Server Message Block. . . . . . . . . . . . . . . . . . . .Syslog. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SMTP TLS. . . . . . . . . . . . . . . . . . . . . . . . . .LDAPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IMAP over SSL. . . . . . . . . . . . . . . . . . . . . . . .POP3 over SSL. . . . . . . . . . . . . . . . . . . . . . . .SQL, SQLnet, and MySQL. . . . . . . . . . . . . . .Remote Desktop Protocol. . . . . . . . . . . . . . . . .Session Initiation Protocol. . . . . . . . . . . . . . . .Understanding Port Functions. . . . . . . . . . . . . .Network Services. . . . . . . . . . . . . . . . . . . . . . . . . . .Domain Name Service (DNS). . . . . . . . . . . . . .The DNS Namespace. . . . . . . . . . . . . . . . . . .Types of DNS Entries. . . . . . . . . . . . . . . . . . .DNS Records. . . . . . . . . . . . . . . . . . . . . . . . .DNS in a Practical Implementation. . . . . . . . . .Dynamic Host Configuration Protocol. . . . . . . .The DHCP Process. . . . . . . . . . . . . . . . . . . . .DHCP and DNS Suffixes. . . . . . . . . . . . . . . . .DHCP Relays and IP Helpers. . . . . . . . . . . . . .Network Time Protocol. . . . . . . . . . . . . . . . . .What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38385868889898992CHAPTER 3:Addressing, Routing, and Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93IP Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94IPv4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95IP Address Classes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95A01 Dulaney FM pi-xxxiv.indd 617/07/21 3:10 PM
viiContentsSubnet Mask Assignment. . . . . . . . . . . . . . . . . . . .Subnetting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Identifying the Differences Between IPv4 Public andPrivate Networks. . . . . . . . . . . . . . . . . . . . . . . . .Private Address Ranges. . . . . . . . . . . . . . . . . .Classless Interdomain Routing. . . . . . . . . . . . . . . . .Default Gateways. . . . . . . . . . . . . . . . . . . . . . . . . .Virtual IP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPv4 Address Types. . . . . . . . . . . . . . . . . . . . . . . .Unicast Address. . . . . . . . . . . . . . . . . . . . . . .Broadcast Address. . . . . . . . . . . . . . . . . . . . .Multicast. . . . . . . . . . . . . . . . . . . . . . . . . . .IPv6 Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . .Where Have All the IPv4 Addresses Gone?. . . .Identifying IPv6 Addresses. . . . . . . . . . . . . . .IPv6 Address Types. . . . . . . . . . . . . . . . . . . .Global Unicast Addresses. . . . . . . . . . . . . . . .Link-Local Addresses. . . . . . . . . . . . . . . . . . .Site-Local Addresses. . . . . . . . . . . . . . . . . . .Neighbor Discovery. . . . . . . . . . . . . . . . . . . .Comparing IPv4 and IPv6 Addressing. . . . . . . . . . .Assigning IP Addresses. . . . . . . . . . . . . . . . . . . . . .Static Addressing. . . . . . . . . . . . . . . . . . . . . .Dynamic Addressing. . . . . . . . . . . . . . . . . . .BOOT Protocol (BOOTP). . . . . . . . . . . . . . .Automatic Private IP Addressing. . . . . . . . . . .Identifying MAC Addresses. . . . . . . . . . . . . . . . . . .NAT and PAT. . . . . . . . . . . . . . . . . . . . . . . . . . . .NAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SNAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . .DNAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Managing Routing and Switching. . . . . . . . . . . . . . . . . . .The Default Gateway. . . . . . . . . . . . . . . . . . . . . . .Routing Tables. . . . . . . . . . . . . . . . . . . . . . . . . . .Static Routing. . . . . . . . . . . . . . . . . . . . . . . . . . . .Default Route. . . . . . . . . . . . . . . . . . . . . . . . . . . .Switching Methods. . . . . . . . . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv.indd 7. . . . . . . . . 97. . . . . . . . . 12312317/07/21 3:10 PM
viiiCompTIA Network N10-008 Exam CramPacket Switching. . . . . . . . . . . . . . . . . . . .Circuit Switching. . . . . . . . . . . . . . . . . . .Comparing Switching Methods. . . . . . . . . .Dynamic Routing. . . . . . . . . . . . . . . . . . . . . . . .Distance-Vector Routing. . . . . . . . . . . . . .Link-State Routing. . . . . . . . . . . . . . . . . .Hybrid Routing Protocols. . . . . . . . . . . . .Network Traffic. . . . . . . . . . . . . . . . . . . . . . . . .Routing Metrics. . . . . . . . . . . . . . . . . . . . . . . . .Virtual Local-Area Networks. . . . . . . . . . . . . . . .VLAN Membership. . . . . . . . . . . . . . . . . .VLAN Segmentation. . . . . . . . . . . . . . . . .The Spanning Tree Protocol. . . . . . . . . . . . . . . .Interface Configuration and Switch Management. .MDI-X. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Trunking. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Port Mirroring. . . . . . . . . . . . . . . . . . . . . . . . .Port Authentication. . . . . . . . . . . . . . . . . . . . . .Power over Ethernet (PoE and PoE ). . . . . . . . .MAC Address Table. . . . . . . . . . . . . . . . . . . . . .Switch Management. . . . . . . . . . . . . . . . . . . . . .Managed and Unmanaged. . . . . . . . . . . . . . . . . .Quality of Service. . . . . . . . . . . . . . . . . . . . . . .Traffic Shaping. . . . . . . . . . . . . . . . . . . . . . . . .Access Control Lists. . . . . . . . . . . . . . . . . . . . . .ARP and RARP. . . . . . . . . . . . . . . . . . . . . . . . .What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42143143144144144145146146147150CHAPTER 4:Network Implementations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151Common Networking Devices. . . . . .Firewall. . . . . . . . . . . . . . . . .IDS/IPS. . . . . . . . . . . . . . . . .Router. . . . . . . . . . . . . . . . . .Switch. . . . . . . . . . . . . . . . . .Hub and Switch Cabling.Multilayer Switch. . . . . . . . . . .Hub. . . . . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv.indd 8.15215315415515715815916017/07/21 3:10 PM
ixContentsBridge. . . . . . . . . . . . . . . . . . . . . . .DSL and Cable Modems. . . . . . . . . . .Access Point. . . . . . . . . . . . . . . . . . .Media Converter. . . . . . . . . . . . . . . .Voice Gateway. . . . . . . . . . . . . . . . . .Repeater. . . . . . . . . . . . . . . . . . . . . .Wireless LAN Controller. . . . . . . . . .Load Balancer. . . . . . . . . . . . . . . . . .Proxy Server. . . . . . . . . . . . . . . . . . .VPN Concentrators and Headends. . .Networked Devices. . . . . . . . . . . . . .Networking Architecture. . . . . . . . . . . . . . .Three-Tiered Architecture. . . . . . . . .Core Layer. . . . . . . . . . . . . . . .Distribution/Aggregation Layer. .Access/Edge Layer. . . . . . . . . . .Software-Defined Networking. . . . . . .Application Layer. . . . . . . . . . .Control Layer. . . . . . . . . . . . . .Infrastructure Layer. . . . . . . . . .Management Plane. . . . . . . . . .Spine and Leaf. . . . . . . . . . . . . . . . .Traffic Flows. . . . . . . . . . . . . . . . . . .Datacenter Location Types. . . . . . . . .Storage-Area Networks. . . . . . . . . . . .iSCSI. . . . . . . . . . . . . . . . . . . .Fibre Channel and FCoE. . . . . .Network-Attached Storage. . . . .What’s Next?. . . . . . . . . . . . . . . . . . . . . . 74174175175175175176176177178178179181CHAPTER 5:Cabling Solutions and Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183General Media Considerations. . . . . . . . . . . . . . . . .Broadband Versus Baseband Transmissions. . . .Simplex, Half-Duplex, and Full-Duplex Modes.Data Transmission Rates. . . . . . . . . . . . . . . . .Types of Network Media. . . . . . . . . . . . . . . .Twisted-Pair Cabling (Copper). . . . . . . .Coaxial Cables. . . . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv.indd 9.18418518518618618719017/07/21 3:10 PM
xCompTIA Network N10-008 Exam CramTwinaxial Cables. . . . . . . . . . . . . . . . . . . . . . . .Fiber-Optic Cables. . . . . . . . . . . . . . . . . . . . . .Plenum Versus PVC Cables. . . . . . . . . . . . . . . .Types of Media Connectors. . . . . . . . . . . . . . . . . . . . .BNC Connectors. . . . . . . . . . . . . . . . . . . . . . . .RJ-11 Connectors. . . . . . . . . . . . . . . . . . . . . . .RJ-45 Connectors. . . . . . . . . . . . . . . . . . . . . . .F-Type Connectors and RG-59 and RG-6 Cables.Fiber Connectors. . . . . . . . . . . . . . . . . . . . . . . .Transceivers. . . . . . . . . . . . . . . . . . . . . . . . . . .Media Couplers/Converters. . . . . . . . . . . . . . . . . . . .TIA/EIA 568A and 568B Wiring Standards. . . . . . . . . .Straight-Through Versus Crossover Cables. . . . . . . . . .Rollover and Loopback Cables. . . . . . . . . . . . . . . . . .Components of Wiring Distribution. . . . . . . . . . . . . . .Network Cross-Connects. . . . . . . . . . . . . . . . . .Horizontal Cabling. . . . . . . . . . . . . . . . . . . . . .Vertical Cables. . . . . . . . . . . . . . . . . . . . . . . . .Patch Panels. . . . . . . . . . . . . . . . . . . . . . . . . . .Fiber Distribution Panels. . . . . . . . . . . . . . . . . .66 and 110 Blocks (T568A, T568B). . . . . . . . . . .MDF and IDF Wiring Closets. . . . . . . . . . . . . .Ethernet Copper and Fiber Standards. . . . . . . . . . . . . .10BASE-T. . . . . . . . . . . . . . . . . . . . . . . . . . . .100BASE-TX. . . . . . . . . . . . . . . . . . . . . . . . . .1000BASE-T. . . . . . . . . . . . . . . . . . . . . . . . . .10GBASE-T. . . . . . . . . . . . . . . . . . . . . . . . . . .40GBASE-T. . . . . . . . . . . . . . . . . . . . . . . . . . .1000BASE-LX and 1000BASE-SX. . . . . . . . . . .10GBASE-LR and 10GBASE-SR. . . . . . . . . . . .Multiplexing Options. . . . . . . . . . . . . . . . . . . . . . . . .Troubleshooting Common Cable Connectivity Issues. . . . . . .Limitations, Considerations, and Issues. . . . . . . . . . . . . . . . .Throughput, Speed, and Distance. . . . . . . . . . . . . . . .Cabling Specifications/Limitations. . . . . . . . . . . . . . . .Cabling Considerations. . . . . . . . . . . . . . . . . . . . . . .Cabling Applications. . . . . . . . . . . . . . . . . . . . . . . . .Attenuation and dB Loss. . . . . . . . . . . . . . . . . . . . . . .Interference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv.indd 1821822022022122122217/07/21 3:10 PM
xiContentsIncorrect Pinout. . . . . . . . . . . . . . . . . . . . .Bad Ports. . . . . . . . . . . . . . . . . . . . . . . . . .Open/Short. . . . . . . . . . . . . . . . . . . . . . . . .LED Status Indicators. . . . . . . . . . . . . . . . .Incorrect Transceivers. . . . . . . . . . . . . . . . . .Duplexing Issues. . . . . . . . . . . . . . . . . . . . .TX/RX Reversed. . . . . . . . . . . . . . . . . . . . .Dirty Optical Cables. . . . . . . . . . . . . . . . . .Common Tools. . . . . . . . . . . . . . . . . . . . . . . . . .Cable Crimpers, Strippers, and Snips/Cutters.Punchdown Tools. . . . . . . . . . . . . . . . . . . .Tone Generator. . . . . . . . . . . . . . . . . . . . . .Loopback Adapter. . . . . . . . . . . . . . . . . . . .OTDR. . . . . . . . . . . . . . . . . . . . . . . . . . . .Multimeter. . . . . . . . . . . . . . . . . . . . . . . . .Cable Tester. . . . . . . . . . . . . . . . . . . . . . . .Wire Map. . . . . . . . . . . . . . . . . . . . . . . . . .Tap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fusion Splicer. . . . . . . . . . . . . . . . . . . . . . .Spectrum Analyzer. . . . . . . . . . . . . . . . . . . .Fiber Light Meter. . . . . . . . . . . . . . . . . . . .What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . 31231231231232234CHAPTER 6:Wireless Solutions and Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235Understanding Wireless Basics. . . . . . . . . . . . . . . . . . . . . . . .Wireless Channels and Frequencies. . . . . . . . . . . . . . . .Cellular Technology Access. . . . . . . . . . . . . . . . . . . . . .Speed, Distance, and Bandwidth. . . . . . . . . . . . . . . . . .Channel Bonding. . . . . . . . . . . . . . . . . . . . . . . . . . . . .MIMO/MU-MIMO/Directional/Omnidirectional. . . . . .Antenna Ratings. . . . . . . . . . . . . . . . . . . . . . . . .Antenna Coverage. . . . . . . . . . . . . . . . . . . . . . . .Establishing Communications Between Wireless Devices.Configuring the Wireless Connection. . . . . . . . . . . . . . .Troubleshooting Wireless Issues. . . . . . . . . . . . . . . . . . . . . . .Site Surveys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Factors Affecting Wireless Signals. . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv.indd 11.23623624124124224324424424624825726226217/07/21 3:10 PM
xiiCompTIA Network N10-008 Exam CramInterference. . . . . . . . . . . . . . . . . . .Reflection, Refraction, and Absorption.Troubleshooting AP Coverage. . . . . . . . . . .What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . .262263264267CHAPTER 7:Cloud Computing Concepts and Options. . . . . . . . . . . . . . . . . . . . . . . . . 269Cloud Concepts. . . . . . . . . . . . . . . . . . . .Service Models. . . . . . . . . . . . . . . .Software as a Service. . . . . . . . . . . .Platform as a Service. . . . . . . . . . . .Infrastructure as a Service. . . . . . . . .Desktop as a Service. . . . . . . . . . . . .Deployment Models. . . . . . . . . . . . .Private Cloud. . . . . . . . . . . . . . . . .Public Cloud. . . . . . . . . . . . . . . . . .Hybrid and Community Clouds. . . . .Infrastructure as Code. . . . . . . . . . .Connectivity Options. . . . . . . . . . . .Multitenancy. . . . . . . . . . . . . . . . . .Elasticity. . . . . . . . . . . . . . . . . . . . .Scalability. . . . . . . . . . . . . . . . . . . .Security Implications. . . . . . . . . . . .The Relationship Between Resources.What’s Next?. . . . . . . . . . . . . . . . . . . . . 79281CHAPTER 8:Network Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283Organizational Documents and Policies. . . . . . . . . . . . . . .Wiring and Port Locations. . . . . . . . . . . . . . . . . . . .Troubleshooting Using Wiring Schematics. . . . .Physical and Logical Network Diagrams. . . . . . . . . . .Baseline Configurations. . . . . . . . . . . . . . . . . . . . . .Policies, Procedures, Configurations, and Regulations. .Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Password-Related Policies. . . . . . . . . . . . . . . . .Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . .Change Management Documentation. . . . . . . .Configuration Documentation. . . . . . . . . . . . .Regulations. . . . . . . . . . . . . . . . . . . . . . . . . . .A01 Dulaney FM pi-xxxiv.indd 12.28428728929029329529529830130230330317/07/21 3:10 PM
xiiiContentsLabeling. . . . . . . . . . . . . . . . . . . . . . . . . . . . .High Availability and Disaster Recovery. . . . . . . . . . .Backups. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Full Backups. . . . . . . . . . . . . . . . . . . . . .Differential Backups. . . . . . . . . . . . . . . . .Incremental Backups. . . . . . . . . . . . . . . .Snapshots. . . . . . . . . . . . . . . . . . . . . . . .Backup Best Practices. . . . . . . . . . . . . . . . . . . .Using Uninterruptible Power Supplies. . . . . . . .Why Use a UPS?. . . . . . . . . . . . . . . . . .Power Threats. . . . . . . . . . . . . . . . . . . . .Beyond the UPS. . . . . . . . . . . . . . . . . . . . . . .Cold, Warm, Hot, and Cloud Sites. . . . . . . . . . .High Availability and Recovery Concepts. . . . . .Active-Active Versus Active-Passive. . . . . . . . . .Monitoring Network Performance. . . . . . . . . . . . . . .Common Performance Metrics. . . . . . . . . . . . .SNMP Monitors. . . . . . . . . . . . . . . . . . . . . . .Management Information Base (MIB). . . .Network Performance, Load, and Stress Testing.Performance Tests. . . . . . . . . . . . . . . . . .Load Tests and Send/Receive Traffic. . . . .Stress Tests. . . . . . . . . . . . . . . . . . . . . . .Performance Metrics. . . . . . . . . . . . . . . .Network Device Logs. . . . . . . . . . . . . . . . . . . .Security Logs. . . . . . . . . . . . . . . . . . . . .Application Log. . . . . . . . . . . . . . . . . . . .System Logs. . . . . . . . . . . . . . . . . . . . . .History Logs. . . . . . . . . . . . . . . . . . . . . .Log Management. . . . . . . . . . . . . . . . . .Patch Management. . . . . . . . . . . . . . . . .Environmental Factors. . . . . . . . . . . . . . . . . . .What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents at a Glance Introduction xxiii CHAPTER 1 Network Technologies, Topologies, and Types 1 CHAPTER 2 Models, Ports, Protocols, and Network Services 41 CHAPTER 3 Addressing, Routing, and Switching 93 CHAPTER 4 Network Implementations 151 CHAPTER 5 Cabling Solutions and Issues 183 CHAPTER 6 Wireless Solutions and Issues 235 CHAPTER 7 Cloud Computing Concepts and Options 269
