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Fundamentals of Communications and Networking, 3rd Edition

Name: Fundamentals of Communications and Networking, 3rd Edition
ISBN: 9781284200126

by Michael G. Solomon, David Kim

January 2021

Beginner

565 pages

19h 27m

English

Jones & Bartlett Learning

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Cover
Title Page
Copyright Page
Brief Contents
Contents
Dedication
Preface
Acknowledgments
About the Authors
CHAPTER 1 Evolution of Communication Technologies

Today’s Hyperconnected World
From Analog to Digital to IP
Internet and IP Connectivity Are Pervasive
How Unified Communications Connect People and Businesses
How Communications Have Evolved
Snail MailStore-and-Forward MessagesReal-Time CommunicationSocial Media
The Web’s Impact on Business
E-commerce Business ModelsSolving E-commerce Business Challenges
The Internet of Things’ Impact on Business
The Cloud’s Impact on Business
VirtualizationTypes of Cloud Services and Delivery Models
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 1 ASSESSMENT
CHAPTER 2 Solving Today’s Business Communication Challenges
Introducing Organizational Communication Challenges
Enterprise ChallengesGovernment ChallengesSMB/SOHO Challenges
Solving Enterprise Business Communication Challenges
Banking and Financial Services ChallengesHealthcare and Patient Care Services ChallengesK–12 and Higher Education Services ChallengesCommercial Retail Products and Services ChallengesManufacturing Services ChallengesTravel and Transportation Services Challenges
Solving Government Business Communication Challenges
Solving SMB Business Communication Challenges
Solving SOHO Business Communication Challenges
Transforming Communication Requirements into Network Solutions
Defining Your Organization’s Networking Requirements
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 2 ASSESSMENT
CHAPTER 3 Circuit-Switched, Packet-Switched, and IP-Based Communications
Open Systems Interconnection Reference Model
TCP/IP Reference Model
Application LayerTransport LayerInternet LayerNetwork Access Layer
TCP/IP Suite
Circuit Switching Versus Packet Switching
Circuit SwitchingPacket Switching
IP-Based Communications
Network Topology Overview
Point-to-Point NetworksBusRingStarMeshFully Connected MeshHybrid
Internetworking
Internetworking with BridgesInternetworking with SwitchesInternetworking with RoutersInternetworking with a Bridge/RouterInternetworking with a Gateway
Switching Concepts
Switch FunctionalitySwitch Forwarding Methods
Routing Concepts
Network Layer AddressStatic RouteDynamic Route
Resiliency and Redundancy
Layer 2 ResiliencyLayer 3 ResiliencyVirtual Networking ComponentsNetwork Storage Types
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 3 ASSESSMENT
CHAPTER 4 The Physical and Data Link Layers
Physical Layer and Data Link Layer
Physical Layer: OSI LayerData Link Layer: OSI Layer
Ethernet and IEEE 802.3 Frame Formats
Ethernet Evolution
IEEE 802.3 Standards and Specifications
Solving Business ChallengesIEEE 802.3 CSMA/CD Standards
How Multiple Nodes Share Network Media
Internetworking LANs: Bridging Versus Routing
Repeaters and Hubs: Layer 1 ForwardingBridges and Switches: Layer 2 Forwarding
Ethernet Network Design Fundamentals
Edge Network: Workgroup LANsEdge Network: Use of PoE SwitchesEdge Network: Departmental LANBuilding Backbone: Collapsed BackbonesCampus Backbone: Collapsed Data Center BackboneMetropolitan Area Backbone: Metro Ethernet Backbone
GigE and 10 GigE Specifications
25, 40, and 100 GigE: Server Farms and Backbone Trunking
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 4 ASSESSMENT
CHAPTER 5 The Network and Transport Layers
Network and Transport Layers
Network Layer: OSI LayerTransport Layer: OSI Layer
The Internet Protocol
IP Addressing: IPv4 versus IPv6
IPv4IPv6IPv4 to IPv6
IP Communications
Connectionless Versus Connection-Oriented Communications
Scenario 1: Connection-Oriented ConversationScenario 2: Connectionless Conversation
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 5 ASSESSMENT
CHAPTER 6 The Session, Presentation, and Application Layers
Session, Presentation, and Application Layers
Session Layer: OSI Layer 5Presentation Layer: OSI Layer 6Application Layer: OSI Layer 7
Application Architectures
Architecture Types and ExamplesFeatures and Benefits of Each Architecture TypeAligning Architecture with Business Requirements
Application Layer Ports and Sockets
World Wide Web
From the Internet to the Web: How the World Wide Web WorksHTTP: The Web’s Workhorse
Impact on Security
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 6 ASSESSMENT
CHAPTER 7 Layer 2 Networking
Layer 2 Networking Basics
Layer 1 and Layer 2 EvolutionWhat Layer 2 Networking Means
Ethernet LAN Topologies
Layer 2 Network Redundancy and ResiliencyVLAN Tagging
IEEE 802.3ad Link Aggregation
Network BackbonesNetwork Power
Layer 2 Business Solutions
SOHO OrganizationSMB OrganizationEnterprise Organization
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 7 ASSESSMENT
CHAPTER 8 Layer 3 Networking
Network Layer Basics
Network Layer Protocols
Router ProtocolsConvergenceLoad BalancingTraffic Flow
Internetwork Routing Functions
LAN-to-LAN RoutingLAN-to-WAN Routing
Routing Metrics and Protocols
Exterior Versus Interior Routing ProtocolsRouting Information Protocol (RIP)RIP Version 2 (RIPv2)Open Shortest Path First Version 2 (OSPFv2)Intermediate System-to-Intermediate System (IS-IS)Interior Gateway Routing Protocol (IGRP)Enhanced Interior Gateway Routing Protocol (EIGRP)Border Gateway Protocol (BGP)
Layer 3 Network Redundancy and Resiliency
Configuring ResilienceRouting Protocol Resilience
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 8 ASSESSMENT
CHAPTER 9 Network Infrastructure Implementations
Physical Infrastructures
Hosting Infrastructures
Foundational Network Services
IP Address Management (IPAM)Dynamic Host Control Protocol (DHCP)Domain Name System (DNS)Network Time Protocol (NTP)
Network Devices and Where to Position Them
Asset Visibility
Creating an IT Asset Inventory
Access Controls
Identification, Authentication, Authorization, and AccountingRemote Access Controls and Multifactor Authentication
Network Access Controls
VisibilityControlDevice Identification
Advanced Networking Devices
Advanced Switching DevicesLayered Security SolutionsPerformance-Enhancing Devices
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 9 ASSESSMENT
CHAPTER 10 Wireless Networks
Supporting the Mobile Worker
Wired Versus WirelessEvolution of Wireless LAN Networking
IEEE 802.11 Family of Standards
The IEEE 802.11 Legacy StandardThe IEEE 802.11b WLAN StandardThe IEEE 802.11a WLAN StandardThe IEEE 802.11g WLAN StandardThe IEEE 802.11n WLAN StandardThe IEEE 802.11ac WLAN StandardThe IEEE 802.11ax WLAN Standard
WLAN Security
Authentication and Access ControlSecurity Threats to WLANsIEEE 802.1X SecurityEncryption and Data PrivacySecurity Protocols and Access ControlSecurity PracticesUnauthorized Access to Shared Resources
WLAN Planning and Design
RF Design IssuesCapacity and CoverageSpeed and Distance RequirementsChannel BandwidthChannel BondingMIMO/MU-MIMOUnidirectional/Omnidirectional
Performing a Site Survey
Conducting the Site Tests
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 10 ASSESSMENT
CHAPTER 11 Wide Area Networks
WAN Business Drivers
WANs and Service ProvidersWAN and SD-WAN Business Drivers
Evolution of WAN Technologies
WAN Technologies in the 1970sWAN Technologies in the 1980sWAN Technologies in the 1990sWAN Technologies in the 2000sWAN Technologies in the 2010s
WAN Management and Requirements
Fault Management RequirementsConfiguration Management RequirementsAccounting Management RequirementsPerformance Management RequirementsSecurity Management Requirements
WAN Solutions for Different Scenarios
Enterprise BusinessSmall to Medium Business (SMB)Small Office/Home Office (SOHO)
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 11 ASSESSMENT
CHAPTER 12 Network Operations and Management
The Scope of Network Operations and Management
IT and IT Security Policy FrameworkPolicy and Procedure Best Practices
Network Operations and Management
Staffing and ResourcesReal-Time AvailabilityAudit and MonitoringCollecting DataReporting InformationConfiguration Change ManagementChange Control Board MembershipChange Control Board FunctionChange Control Board Policies and PracticesCapacity Planning and ReadinessIT Asset InventoryNetwork PerformanceService Providers
Network Management
Simple Network Management Protocol (SNMP)Management Information Bases (MIBs)SNMP TrapsFCAPS: Fault ManagementFCAPS: Configuration ManagementFCAPS: Accounting ManagementFCAPS: Performance ManagementFCAPS: Security Management
Network Security
Physical SecurityAccess ControlsWireless SecurityCommon Network AttacksNetwork Device HardeningNetwork Mitigation SolutionsChanging AttacksBlended Response
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 12 ASSESSMENT
CHAPTER 13 Network Auditing, Monitoring, and Incident Response
Security Auditing and Analysis
Purpose of AuditsCustomer ConfidenceAuditing Benchmarks
Security Monitoring
Security Monitoring for Computer SystemsTypes of Log Information to Capture
Responding to Security Incidents
Incident Response Plan, Policies, Procedures, and GuidelinesIncident Response TeamPhases of an Incident and Response
The Role of Business Continuity and Disaster Recovery Plans
Recovering SystemsBusiness Impact AnalysisRisk AssessmentRisk Management
Planning for Disaster and Recovery
Policies, Procedures, Priorities, and PracticesTesting and EvaluationPreparation and Staging of Testing ProceduresFrequency of TestsAnalysis of Test Results
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 13 ASSESSMENT
CHAPTER 14 Network Security
Network Security Essentials
What Is Confidentiality?What Is Integrity?What Is Availability?
Network Security Scope
Network Risks, Threats, and Vulnerabilities
Conducting a Network Security Risk Assessment
Layered Network Security Architectures
Network Security Controls
How to Implement Security Controls
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 14 ASSESSMENT
CHAPTER 15 Network Troubleshooting
Network Operations Center
Network Troubleshooting and TicketingNOC and IT Service Desk Structure
Network Troubleshooting Approach
Network Troubleshooting Tools
Physical Layer ToolsNetwork Performance Monitoring ToolsNetwork Traffic ToolsNetwork Connectivity ToolsNetwork Scanning and Discovery ToolsVulnerability Assessment ToolsProtocol Analyzer Tools
Network Troubleshooting Using Protocol Analysis
How Protocols Behave
Network Troubleshooting Scenarios
Names Not ResolvingIncorrect Gateway DefinitionIncorrect NetmaskDuplicate IP AddressDuplicate MAC AddressesExpired IP AddressRogue DHCP ServerUntrusted SSL CertificateIncorrect TimeExhausted DHCP ScopeBlocked TCP/UDP PortsIncorrect Host-Based Firewall SettingsIncorrect ACL SettingsUnresponsive Service
CHAPTER SUMMARY
KEY CONCEPTS AND TERMSCHAPTER 15 ASSESSMENT
APPENDIX A Answer Key
APPENDIX B IP Addressing Primer
APPENDIX C Structured Wiring System Primer
APPENDIX D Sample Security Policies and Templates
APPENDIX E Standard Acronyms
Glossary of Key Terms
References
Index

Content preview from Fundamentals of Communications and Networking, 3rd Edition

Network Security Scope

Let’s examine what a typical IT infrastructure looks like. The seven domains of a typical IT infrastructure, depicted in FIGURE 14-5, are common for small office/home office (SOHO), small and medium-sized business (SMB), and enterprise organizations. It doesn’t matter how small or large, IT infrastructures all have these common elements. Here is a quick definition of each of the domains:

An illustration. The domains are as follows: User domain, Workstation domain, LAN domain, LAN-to-WAN domain, Remote access domain, WAN domain, and System or application domain. The user domain covers the users with access to the other six domains. A computer where the activity takes place is identified as the workstation domain. LAN domain consists of the server and hub; the workstation domain is connected to the LAN domain. LAN-to-WAN domain consists of a filtering firewall and a router, to which the LAN domain is connected. This domain is connected to the WAN domain that consists of the internet and spans over a large geographical area. The WAN domain is connected to the System or application domain; this domain is made up of firewall, mainframe, and application and web servers. Remote access domain functions through a broadband internet to which a remote user is connected. This domain is connected to the LAN-to-WAN domain. — FIGURE 14-5 Seven domains of a typical IT infrastructure.

User—Includes humans, which are the weakest link in the entire security chain.
Workstation—The point of entry for the user into the network and IT infrastructure.
LAN—The ...

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Fundamentals of Data Communication Networks

Publisher Resources

ISBN: 9781284200126

Cloud Computing

Data Engineering

Data Science

AI & ML

Programming Languages

Software Architecture

IT/Ops

Security

Design

Business

Soft Skills

Fundamentals of Communications and Networking, 3rd Edition

by Michael G. Solomon, David Kim

Network Security Scope

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and much more.

More than 5,000 organizations count on O’Reilly

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Addison B.

Amir M.

Mark W.

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