This new edition aligns to the recent changes made to the first of the two courses recommended for CCNA study. The book and companion CD-ROM are created in a more modular fashion, breaking down concepts into smaller, easier-to-absorb blocks of information. The CD-ROM testing engine also includes simulation-based questions as well as ICND questions.

CCENT/CCNA ICND1 Official Exam Certification Guide Second Edition *Master ICND1 640-822 exam topics with the official study guide *Assess your knowledge with chapter-opening quizzes *Review key concepts with Exam Preparation Tasks *Practice with hundreds of exam questions on the CD-ROM Wendell Odom, CCIEA (R) No. 1624 CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition, is a best of breed CiscoA (R) exam study guide that focuses specifically on the objectives for the CCENTaA A and CCNAA (R) ICND1 exam. This fully updated edition presents complete reviews and a more challenging and realistic exam preparation experience. Senior instructor and best-selling author Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. The material is presented in a concise manner, focused on increasing your understanding of exam topics and preparing you for the numerous challenges the exams present. CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition, presents you with an organized test preparation routine through the use of proven series elements and techniques. Do I Know This Already? quizzes open each chapter and allow you to decide how much time you need to spend on each section. Chapter-ending Exam Preparation Tasks sections help you drill on key concepts you must know thoroughly and help increase your speed in answering questions, a difficult hurdle many exam candidates face on the new exams. A Final Preparation chapter guides you through tools and resources to help you craft your final study plan. Special troubleshooting sections help you master the complex scenarios you will face on the exam. The companion CD-ROM contains a powerful testing engine that allows you to focus on individual topic areas or take complete, timed exams. The assessment engine also tracks your performance and provides feedback on a chapter-by-chapter basis, presenting question-by-question remediation to the text. The bonus DVD contains more than 60 minutes of personal video mentoring from the author focused mainly on bringing difficult subnetting concepts to life.Well-regarded for its level of detail, assessment features, and challenging practice questions, this book provides you with more detailed information and more realistic practice exercises than any other CCNA study guide, enabling you to succeed on the exam the first time. CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition, is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. Wendell Odom, CCIEA (R) No. 1624, has been in the networking industry since 1981. He currently teaches QoS, MPLS, and CCNA courses for Skyline Advanced Technology Services (www.skyline-ats.com). Wendell has worked as a network engineer, consultant, systems engineer, and instructor and course developer, and has taught authorized Cisco courses for the majority of the last 14 years.The official study guide helps you master all the topics on the CCENT and CCNA ICND1 exam, including *TCP/IP and OSI networking models *Operating Cisco routers and LAN switches *Ethernet switch configuration and troubleshooting*Wireless LANs *IP addressing and subnetting *Routing protocols *Router configuration and troubleshooting *Network Security *WAN concepts and configuration Companion CD-ROM The CD-ROM contains an electronic copy of the book and 200 practice questions for the ICND1 and full CCNA exams, including simulation and testlet questions, all available in study mode, test mode, and flash card format. BONUS DVD The DVD contains more than 60 minutes of personal instruction from the author. This volume is part of the Exam Certification Guide Series from Cisco PressA (R). Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day nears. Category: Cisco Press-Cisco Certification Covers: CCENT and CCNA ICND1 Exam 640-822

• Part I Networking Fundamentals 3 Chapter 1 Introduction to Computer Networking Concepts 5 Perspectives on Networking 5 The Flintstones Network: The First Computer Network? 8 Chapter 2 The TCP/IP and OSI Networking Models 17 Do I Know This Already? Quiz 18 Foundation Topics 21 The TCP/IP Protocol Architecture 22 The TCP/IP Application Layer 23 The TCP/IP Transport Layer 25 The TCP/IP Internet Layer 27 The TCP/IP Network Access Layer 28 Data Encapsulation Terminology 30 The OSI Reference Model 32 Comparing OSI and TCP/IP 32 OSI Layers and Their Functions 34 OSI Layering Concepts and Benefits 35 OSI Encapsulation Terminology 36 Exam Preparation Tasks 38 Review all the Key Topics 38 Complete the Tables and Lists from Memory 38 Definitions of Key Terms 38 OSI Reference 39 Chapter 3 Fundamentals of LANs 41 Do I Know This Already? Quiz 41 Foundation Topics 45 An Overview of Modern Ethernet LANs 45 A Brief History of Ethernet 48 The Original Ethernet Standards: 10BASE2 and 10BASE5 48 Repeaters 50 Building 10BASE-T Networks with Hubs 51 Ethernet UTP Cabling 52 UTP Cables and RJ-45 Connectors 52 Transmitting Data Using Twisted Pairs 54 UTP Cabling Pinouts for 10BASE-T and 100BASE-TX 55 1000BASE-T Cabling 58 Improving Performance by Using Switches Instead of Hubs 58 Increasing Available Bandwidth Using Switches 61 Doubling Performance by Using Full-Duplex Ethernet 62 Ethernet Layer 1 Summary 63 Ethernet Data-Link Protocols 63 Ethernet Addressing 64 Ethernet Framing 65 Identifying the Data Inside an Ethernet Frame 67 Error Detection 68 Exam Preparation Tasks 69 Review All the Key Topics 69 Complete the Tables and Lists from Memory 69 Definitions of Key Terms 69 Chapter 4 Fundamentals of WANs 71 Do I Know This Already? Quiz 71 Foundation Topics 74 OSI Layer 1 for Point-to-Point WANs 74 WAN Connections from the Customer Viewpoint 77 WAN Cabling Standards 78 Clock Rates, Synchronization, DCE, and DTE 80 Building a WAN Link in a Lab 81 Link Speeds Offered by Telcos 82 OSI Layer 2 for Point-to-Point WANs 83 HDLC 83 Point-to-Point Protocol 85 Point-to-Point WAN Summary 85 Frame Relay and Packet-Switching Services 86 The Scaling Benefits of Packet Switching 86 Frame Relay Basics 87 Exam Preparation Tasks 91 Review All the Key Topics 91 Complete the Tables and Lists from Memory 91 Definitions of Key Terms 91 Chapter 5 Fundamentals of IP Addressing and Routing 93 Do I Know This Already? Quiz 93 Foundation Topics 98 Overview of Network Layer Functions 98 Routing (Forwarding) 99 PC1's Logic: Sending Data to a Nearby Router 100 R1 and R2's Logic: Routing Data Across the Network 100 R3's Logic: Delivering Data to the End Destination 100 Network Layer Interaction with the Data Link Layer 101 IP Packets and the IP Header 102 Network Layer (Layer 3) Addressing 103 Routing Protocols 104 IP Addressing 105 IP Addressing Definitions 105 How IP Addresses Are Grouped 106 Classes of Networks 107 The Actual Class A, B, and C Network Numbers 109 IP Subnetting 110 IP Routing 114 Host Routing 114 Router Forwarding Decisions and the IP Routing Table 115 IP Routing Protocols 118 Network Layer Utilities 121 Address Resolution Protocol and the Domain Name System 121 DNS Name Resolution 122 The ARP Process 122 Address Assignment and DHCP 123 ICMP Echo and the ping Command 125 Exam Preparation Tasks 126 Review All the Key Topics 126 Complete the Tables and Lists from Memory 127 Definitions of Key Terms 127 Chapter 6 Fundamentals of TCP/IP Transport, Applications, and Security 129 Do I Know This Already? Quiz 129 Foundation Topics 133 TCP/IP Layer 4 Protocols: TCP and UDP 133 Transmission Control Protocol 134 Multiplexing Using TCP Port Numbers 135 Popular TCP/IP Applications 138 Error Recovery (Reliability) 140 Flow Control Using Windowing 141 Connection Establishment and Termination 142 Data Segmentation and Ordered Data Transfer 144 User Datagram Protocol 145 TCP/IP Applications 146 QoS Needs and the Impact of TCP/IP Applications 146 The World Wide Web, HTTP, and SSL 149 Universal Resource Locators 150 Finding the Web Server Using DNS 150 Transferring Files with HTTP 152 Network Security 153 Perspectives on the Sources and Types of Threats 154 Firewalls and the Cisco Adaptive Security Appliance (ASA) 158 Anti-x 160 Intrusion Detection and Prevention 160 Virtual Private Networks (VPN) 161 Exam Preparation Tasks 163 Review All the Key Topics 163 Complete the Tables and Lists from Memory 163 Definitions of Key Terms 163 Part II LAN Switching 165 Chapter 7 Ethernet LAN Switching Concepts 167 Do I Know This Already? Quiz 167 Foundation Topics 171 LAN Switching Concepts 171 Historical Progression: Hubs, Bridges, and Switches 171 Switching Logic 174 The Forward Versus Filter Decision 175 How Switches Learn MAC Addresses 177 Flooding Frames 178 Avoiding Loops Using Spanning Tree Protocol 179 Internal Processing on Cisco Switches 180 LAN Switching Summary 182 LAN Design Considerations 183 Collision Domains and Broadcast Domains 183 Collision Domains 183 Broadcast Domains 184 The Impact of Collision and Broadcast Domains on LAN Design 185 Virtual LANs (VLAN) 187 Campus LAN Design Terminology 188 Ethernet LAN Media and Cable Lengths 191 Exam Preparation Tasks 194 Review All the Key Topics 194 Complete the Tables and Lists from Memory 194 Definitions of Key Terms 195 Chapter 8 Operating Cisco LAN Switches 197 Do I Know This Already? Quiz 197 Foundation Topics 200 Accessing the Cisco Catalyst 2960 Switch CLI 200 Cisco Catalyst Switches and the 2960 Switch 201 Switch Status from LEDs 202 Accessing the Cisco IOS CLI 205 CLI Access from the Console 206 Accessing the CLI with Telnet and SSH 208 Password Security for CLI Access 208 User and Enable (Privileged) Modes 210 CLI Help Features 211 The debug and show Commands 213 Configuring Cisco IOS Software 214 Configuration Submodes and Contexts 215 Storing Switch Configuration Files 217 Copying and Erasing Configuration Files 220 Initial Configuration (Setup Mode) 221 Exam Preparation Tasks 226 Review All the Key Topics 226 Complete the Tables and Lists from Memory 226 Definitions of Key Terms 226 Command References 226 Chapter 9 Ethernet Switch Configuration 231 Do I Know This Already? Quiz 231 Foundation Topics 235 Configuration of Features in Common with Routers 235 Securing the Switch CLI 235 Configuring Simple Password Security 236 Configuring Usernames and Secure Shell (SSH) 239 Password Encryption 242 The Two Enable Mode Passwords 244 Console and vty Settings 245 Banners 245 History Buffer Commands 246 The logging synchronous and exec-timeout Commands 247