book

Business Data Communications and Networking

Name: Business Data Communications and Networking
ISBN: 9780470055755

by Jerry FitzGerald, Alan Dennis

January 2009

Intermediate to advanced

608 pages

19h 49m

English

Wiley

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Copyright
ABOUT THE AUTHORS
PREFACE
PURPOSE OF THIS BOOKWHAT'S NEW IN THIS EDITIONOnline Animations www.wiley.com/college/fitzgeraldLab Exercises www.wiley.com/college/fitzgeraldOnline Supplements for Instructors www.wiley.com/college/fitzgerald
ACKNOWLEDGMENTS
I. INTRODUCTION
1. INTRODUCTION TO DATA COMMUNICATIONS
1.1. INTRODUCTION1.1.1. A Brief History of Communications in North America1.1.2. A Brief History of Information Systems1.1.3. A Brief History of the Internet1.2. DATA COMMUNICATIONS NETWORKS1.2.1. Components of a Network1.2.2. Types of Networks1.3. NETWORK MODELS1.3.1. Open Systems Interconnection Reference Model1.3.2. Internet Model1.3.3. Message Transmission Using Layers1.4. NETWORK STANDARDS1.4.1. The Importance of Standards1.4.2. The Standards-Making Process1.4.3. Common Standards1.5. FUTURE TRENDS1.5.1. Pervasive Networking1.5.2. The Integration of Voice, Video, and Data1.5.3. New Information Services1.6. IMPLICATIONS FOR MANAGEMENT1.7. SUMMARY1.8. KEY TERMS1.9. QUESTIONS1.10. EXERCISES1.11. HANDS-ON ACTIVITY1.11.1. Convergence at Home
II. FUNDAMENTAL CONCEPTS
2. APPLICATION LAYER
2.1. INTRODUCTION2.2. APPLICATION ARCHITECTURES2.2.1. Host-Based Architectures2.2.2. Client-Based Architectures2.2.3. Client-Server Architectures2.2.4. Peer-to-Peer Architectures2.2.5. Choosing Architectures2.3. WORLD WIDE WEB2.3.1. How the Web Works2.3.2. Inside an HTTP Request2.3.3. Inside an HTTP Response2.4. ELECTRONIC MAIL2.4.1. How E-mail Works2.4.2. Inside an SMTP Packet2.4.3. Listserv Discussion Groups2.4.4. Attachments in Multipurpose Internet Mail Extension2.5. OTHER APPLICATIONS2.5.1. File Transfer Protocol2.5.2. Telnet2.5.3. Instant Messaging2.5.4. Videoconferencing2.6. IMPLICATIONS FOR MANAGEMENT2.7. SUMMARY2.8. KEY TERMS2.9. QUESTIONS2.10. EXERCISES2.11. HANDS-ON ACTIVITY2.11.1. Looking Inside Your HTTP Packets2.12. HANDS-ON ACTIVITY2.12.1. Tracing Your E-mail
3. PHYSICAL LAYER
3.1. INTRODUCTION3.2. CIRCUITS3.2.1. Circuit Configuration3.2.2. Data Flow3.2.3. Multiplexing3.2.4. How DSL Transmits Data3.3. COMMUNICATION MEDIA3.3.1. Guided Media3.3.2. Wireless Media3.3.3. Media Selection3.4. DIGITAL TRANSMISSION OF DIGITAL DATA3.4.1. Coding3.4.2. Transmission Modes3.4.3. Digital Transmission3.4.4. How Ethernet Transmits Data3.5. ANALOG TRANSMISSION OF DIGITAL DATA3.5.1. Modulation3.5.2. Capacity of a Circuit3.5.3. How Modems Transmit Data3.6. DIGITAL TRANSMISSION OF ANALOG DATA3.6.1. Translating from Analog to Digital3.6.2. How Telephones Transmit Voice Data3.6.3. How Instant Messenger Transmits Voice Data3.6.4. Voice over Internet Protocol (VoIP)3.7. IMPLICATIONS FOR MANAGEMENT3.8. SUMMARY3.9. KEY TERMS3.10. QUESTIONS3.11. EXERCISES3.12. HANDS-ON ACTIVITY3.12.1. Looking Inside Your Cable3.13. HANDS-ON ACTIVITY3.13.1. Making MP3 Files
4. DATA LINK LAYER
4.1. INTRODUCTION4.2. MEDIA ACCESS CONTROL4.2.1. Controlled Access4.2.2. Contention4.2.3. Relative Performance4.3. ERROR CONTROL4.3.1. Sources of Errors4.3.2. Error Prevention4.3.2.1. Error Detection4.3.3. Error Correction via Retransmission4.3.4. Forward Error Correction4.3.5. Error Control in Practice4.4. DATA LINK PROTOCOLS4.4.1. Asynchronous Transmission4.4.2. Synchronous Transmission4.5. TRANSMISSION EFFICIENCY4.6. IMPLICATIONS FOR MANAGEMENT4.7. SUMMARY4.8. KEY TERMS4.9. QUESTIONS4.10. EXERCISES4.11. HANDS-ON ACTIVITY4.11.1. Capturing Packets on Your Network

5. NETWORK AND TRANSPORT LAYERS
5.1. INTRODUCTION5.2. TRANSPORT AND NETWORK LAYER PROTOCOLS5.2.1. Transmission Control Protocol (TCP)5.2.2. Internet Protocol (IP)5.3. TRANSPORT LAYER FUNCTIONS5.3.1. Linking to the Application Layer5.3.2. Segmenting5.3.3. Session Management5.4. ADDRESSING5.4.1. Assigning Addresses5.4.2. Address Resolution5.5. ROUTING5.5.1. Types of Routing5.5.2. Routing Protocols5.5.3. Multicasting5.6. TCP/IP EXAMPLE5.6.1. Known Addresses, Same Subnet5.6.2. Known Addresses, Different Subnet5.6.3. Unknown Addresses5.6.4. TCP Connections5.6.5. TCP/IP and Network Layers5.7. IMPLICATIONS FOR MANAGEMENT5.8. SUMMARY5.9. KEY TERMS5.10. QUESTIONS5.11. EXERCISES5.12. HANDS-ON ACTIVITY5.12.1. Using TCP/IP5.12.1.1. IPCONFIG: Reading your computer's settings5.12.1.2. PING: Finding other computers5.12.1.3. ARP: Displaying Physical Addresses5.12.1.4. NSLOOKUP: Finding IP Addresses5.12.1.5. DNS Cache5.12.1.6. TRACERT: Finding Routes through the Internet5.13. HANDS-ON ACTIVITY5.13.1. Watching TCP/IP in Action
III. NETWORK TECHNOLOGIES
6. LOCAL AREA NETWORKS
6.1. INTRODUCTION6.1.1. Why Use a LAN?6.1.2. Dedicated-Server versus Peer-to-Peer LANs6.2. LAN COMPONENTS6.2.1. Network Interface Cards6.2.2. Network Cables6.2.3. Network Hubs and Switches6.2.4. Network Operating Systems6.3. TRADITIONAL ETHERNET [IEEE 802.3]6.3.1. Topology6.3.2. Media Access Control6.3.3. Types of Ethernet6.4. SWITCHED ETHERNET6.4.1. Topology6.4.2. Media Access Control6.4.3. Performance Benefits6.5. THE BEST PRACTICE LAN DESIGN6.6. IMPROVING LAN PERFORMANCE6.6.1. Improving Server Performance6.6.2. Improving Circuit Capacity6.6.3. Reducing Network Demand6.7. IMPLICATIONS FOR MANAGEMENT6.8. SUMMARY6.9. KEY TERMS6.10. QUESTIONS6.11. EXERCISES6.12. HANDS-ON ACTIVITY6.12.1.6.12.1.1. Windows File Sharing6.12.1.2. Windows Printer Sharing6.13. HANDS-ON ACTIVITY6.13.1. Tracing Ethernet
7. WIRELESS LOCAL AREA NETWORKS
7.1. INTRODUCTION7.2. WLAN COMPONENTS7.2.1. Network Interface Cards7.2.2. Access Points7.2.3. Radio Frequencies7.3. WI-FI7.3.1. Topology7.3.2. Media Access Control7.3.3. Types of Wi-Fi7.3.4. Wi-Fi as Public Internet Access7.4. WIMAX7.4.1. Topology7.4.2. Media Access Control7.4.3. Types of WiMAX7.5. BLUETOOTH7.5.1. Topology7.5.2. Media Access Control7.6. THE BEST PRACTICE WLAN DESIGN7.6.1. Recommendations7.6.2. Physical WLAN Design7.6.3. WLAN Security7.7. IMPROVING WLAN PERFORMANCE7.7.1. Improving Device Performance7.7.2. Improving Circuit Capacity7.7.3. Reducing Network Demand7.8. IMPLICATIONS FOR MANAGEMENT7.9. SUMMARY7.10. KEY TERMS7.11. QUESTIONS7.12. EXERCISES7.13. HANDS-ON ACTIVITY7.13.1. War-Driving and War-Walking
8. BACKBONE NETWORKS
8.1. INTRODUCTION8.2. BACKBONE NETWORK COMPONENTS8.2.1. Switches8.2.2. Routers8.2.3. Gateways8.2.4. A Caution8.3. BACKBONE NETWORK ARCHITECTURES8.3.1. Backbone Architecture Layers8.3.2. Switched Backbones8.3.3. Routed Backbones8.3.4. Virtual LANs8.4. THE BEST PRACTICE BACKBONE DESIGN8.5. IMPROVING BACKBONE PERFORMANCE8.5.1. Improving Computer and Device Performance8.5.2. Improving Circuit Capacity8.5.3. Reducing Network Demand8.6. IMPLICATIONS FOR MANAGEMENT8.7. SUMMARY8.8. KEY TERMS8.9. QUESTIONS8.10. EXERCISES8.11. HANDS-ON ACTIVITY8.11.1. Network Mapping8.11.1.1. Mapping A Small Network8.11.1.2. Mapping A Large Network
9. METROPOLITAN AND WIDE AREA NETWORKS
9.1. INTRODUCTION9.2. CIRCUIT-SWITCHED NETWORKS9.2.1. Basic Architecture9.2.2. Plain Old Telephone Service9.2.3. ISDN9.3. DEDICATED-CIRCUIT NETWORKS9.3.1. Basic Architecture9.3.2. T Carrier Services9.3.3. Synchronous Optical Network9.4. PACKET-SWITCHED NETWORKS9.4.1. Basic Architecture9.4.2. X.259.4.3. Asynchronous Transfer Mode9.4.4. Frame Relay9.4.5. Ethernet Services9.5. VIRTUAL PRIVATE NETWORKS9.5.1. Basic Architecture9.5.2. VPN Types9.5.3. How VPNs Work9.6. THE BEST PRACTICE MAN/WAN DESIGN9.7. IMPROVING MAN/WAN PERFORMANCE9.7.1. Improving Device Performance9.7.2. Improving Circuit Capacity9.7.3. Reducing Network Demand9.8. IMPLICATIONS FOR MANAGEMENT9.9. SUMMARY9.10. KEY TERMS9.11. QUESTIONS9.12. EXERCISES9.13. HANDS-ON ACTIVITY9.13.1. Examining Wide Area Neworks9.14. HANDS-ON ACTIVITY9.14.1. Examining VPNs with Wireshark9.15. HANDS-ON ACTIVITY9.15.1. Examining VPNs with Tracert
10. THE INTERNET
10.1. INTRODUCTION10.2. HOW THE INTERNET WORKS10.2.1. Basic Architecture10.2.2. Connecting to an ISP10.2.3. The Internet Today10.3. INTERNET ACCESS TECHNOLOGIES10.3.1. DSL10.3.2. Cable Modems10.3.3. Fixed Wireless10.3.4. Mobile Wireless10.3.5. Future Technologies10.4. INTERNET GOVERNANCE10.5. INTERNET210.6. IMPLICATIONS FOR MANAGEMENT10.7. SUMMARY10.8. KEY TERMS10.9. QUESTIONS10.10. EXERCISES10.11. HANDS-ON ACTIVITY10.11.1. Seeing the Internet
IV. NETWORK MANAGEMENT
11. NETWORK SECURITY
11.1. INTRODUCTION11.1.1. Why Networks Need Security11.1.2. Types of Security Threats11.1.3. Network Controls11.2. RISK ASSESSMENT11.2.1. Develop a Control Spreadsheet11.2.2. Identify and Document the Controls11.2.3. Evaluate the Network's Security11.3. ENSURING BUSINESS CONTINUITY11.3.1. Virus Protection11.3.2. Denial-of-Service Protection11.3.3. Theft Protection11.3.4. Device Failure Protection11.3.5. Disaster Protection11.4. INTRUSION PREVENTION11.4.1. Security Policy11.4.2. Perimeter Security and Firewalls11.4.3. Server and Client Protection11.4.4. Encryption11.4.5. User Authentication11.4.6. Preventing Social Engineering11.4.7. Intrusion Prevention Systems11.4.8. Intrusion Recovery11.5. BEST PRACTICE RECOMMENDATIONS11.6. IMPLICATIONS FOR MANAGEMENT11.7. SUMMARY11.8. KEY TERMS11.9. QUESTIONS11.10. EXERCISES11.11. HANDS-ON ACTIVITY11.11.1. Securing Your Computer11.11.1.1. Business Continuity11.11.1.2. Intrusion Prevention11.12. HANDS-ON ACTIVITY11.12.1. Testing Your Computer's Intrusion Prevention
12. NETWORK DESIGN
12.1. INTRODUCTION12.1.1. The Traditional Network Design Process12.2.2. The Building-Block Network Design Process12.2. NEEDS ANALYSIS12.2.1. Geographic Scope12.2.2. Application Systems12.2.3. Network Users12.2.4. Categorizing Network Needs12.2.5. Deliverables12.3. TECHNOLOGY DESIGN12.3.1. Designing Clients and Servers12.3.2. Designing Circuits and Devices12.3.3. Network Design Tools12.3.4. Deliverables12.4. COST ASSESSMENT12.4.1. Request for Proposal12.4.2. Selling the Proposal to Management12.4.3. Deliverables12.5. DESIGNING FOR NETWORK PERFORMANCE12.5.1. Managed Networks12.5.2. Network Circuits12.5.3. Network Devices12.5.4. Minimizing Network Traffic12.6. IMPLICATIONS FOR MANAGEMENT12.7. SUMMARY12.8. KEY TERMS12.9. QUESTIONS12.10. EXERCISES12.11. HANDS-ON ACTIVITY12.11.1. Network Design Software12.12. HANDS-ON ACTIVITY12.12.1. Monitoring AT&T's WAN
13. NETWORK MANAGEMENT
13.1. INTRODUCTION13.2. ORGANIZING THE NETWORK MANAGEMENT FUNCTION13.2.1. The Shift to LANs and the Internet13.2.2. Integrating LANs, WANs, and the Internet13.2.3. Integrating Voice and Data Communications13.3. CONFIGURATION MANAGEMENT13.3.1. Configuring the Network and Client Computers13.3.2. Documenting the Configuration13.4. PERFORMANCE AND FAULT MANAGEMENT13.4.1. Network Monitoring13.4.2. Failure Control Function13.4.3. Performance and Failure Statistics13.4.4. Improving Performance13.5. END USER SUPPORT13.5.1. Resolving Problems13.5.2. Providing End User Training13.6. COST MANAGEMENT13.6.1. Sources of Costs13.6.2. Reducing Costs13.7. IMPLICATIONS FOR MANAGEMENT13.8. SUMMARY13.9. KEY TERMS13.10. QUESTIONS13.11. EXERCISES13.12. HANDS-ON ACTIVITY13.12.1. Network Monitoring
V. APPENDICES
A. CONNECTOR CABLES
A.1. RS232 (DB-25)/RS449 (DB-9)A.2. NULL MODEM CABLE CONNECTIONSA.3. DATA SIGNALING/SYNCHRONIZATIONA.4. ETHERNET AND RJ-45A.4.1. 10Base-TA.4.2. 100Base-TA.4.3. 1 GbEA.5. UNIVERSAL SERIAL BUSA.6. FIREWIRE
B. SPANNING TREE PROTOCOL
C. IP TELEPHONY
D. CELLULAR TECHNOLOGIES
E. TCP/IP GAME
E.1. INTRODUCTIONE.1.1. General RulesE.2. APPLICATION LAYERE.2.1. ActivitiesE.2.2. Tools NeededE.2.3. Sending Outgoing MessagesE.2.4. Responding to Incoming MessagesE.2.5. List of MessagesE.3. TRANSPORT LAYERE.3.1. ActivitiesE.3.2. Tools NeededE.3.3. Accepting Outgoing Messages from the Application LayerE.3.4. Accepting Incoming Messages from the Network LayerE.4. NETWORK LAYERE.4.1. ActivitiesE.4.2. Tools NeededE.4.3. Accepting Outgoing Messages from the Transport LayerE.4.4. Accepting Incoming Messages from the Data Link LayerE.5. DATA LINK LAYERE.5.1. ActivitiesE.5.2. Tools NeededE.5.3. Accepting Outgoing Messages from the Network LayerE.5.4. Accepting Incoming Messages from the Physical LayerE.6. PHYSICAL LAYERE.6.1. ActivitiesE.6.2. Tools NeededE.6.3. Accepting Messages from the Data Link LayerE.6.4. Accepting Messages from the Physical Layer of Another ComputerE.7. NOTE TO INSTRUCTORSE.7.1. BackgroundE.8. PREPARING TO TEACH THE GAMEE.9. TEACHING THE GAMEE.9.1. Discussion Questions
F. WINDOWS SERVER
F.1. MANAGING USER ACCOUNTSF.1.1. Creating UsersF.1.2. Setting User PropertiesF.1.3. Creating GroupsF.1.4. Adding Users to GroupsF.2. MANAGING FILE SHARINGF.2.1. Creating a Shared FolderF.2.2. Enabling SharingF.2.3. Defining Security
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Business Data Communications and Networking

by Jerry FitzGerald, Alan Dennis

Part IV. NETWORK MANAGEMENT

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