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CCENT Exam Prep (Exam 640-822)

Book Description

Your Complete Certification Solution

In this book you’ll learn how to:

  • Understand the foundations of network communication as described in the OSI and TCP/IP models

  • Accurately design and troubleshoot networks using IP subnetting skills

  • Understand the operational components and models of Cisco® routers and switches

  • Perform basic navigation and configurations using Cisco IOS® Software and Cisco Secure Device Manager

  • Apply techniques to secure networks

  • Implement and troubleshoot Distance Vector (RIPv2) routing protocols

  • Implement and troubleshoot NAT, DHCP, and DNS operation on a router

  • Implement and secure wireless LANs (WLANs)

  • Implement and verify basic WAN links

  • CD Features New Simulation Questions!

    The CD features innovative testing software powered by MeasureUp, an electronic copy of the book, and 75 minutes of video instruction that highlight five scenarios to help prepare for simlet questions on the new exams. The MeasureUp testing software gives you an effective tool to assess your readiness for the ICND1 exam:

  • Detailed explanations of correct and incorrect answers

  • Multiple test modes

  • Random questions and order of answers

  • Coverage of all CCENT™ ICND1 exam objectives

  • WRITTEN BY CCENT Experts!

    Jeremy Cioara (CCIE®, CCVP™, CCSP®) works in many facets of the Cisco networking realm. He is an accomplished instructor, author, and consultant. Jeremy is the CIO of AdTEC Networks and works as a network consultant focusing on Cisco network and voice-over-IP (VoIP) implementations.

    Dave Minutella (CCNP®, CCDP®, INFOSEC, CISSP, CTP, MCSA, MCDST, Security+, Network+, A+) has been working in the IT and telecom industry for over 14 years. He currently serves as Vice President of Educational Services for Training Camp.

    Heather Stevenson (CCNP) has more than 7 years of experience in the IT industry and is currently a Senior Network Engineer at a global manufacturing company.

    www.examcram.com

    ISBN-13: 978-0-7897-3716-8

    ISBN-10: 0-7897-3716-7

    Table of Contents

    1. Copyright
      1. Dedications
    2. About the Authors
    3. Acknowledgments
    4. We Want to Hear from You!
    5. Reader Services
    6. Cisco ICND1 Exam Objectives
      1. Exam Description
      2. Exam Topics
        1. Describe the operation of data networks
        2. Implement a small switched network
        3. Implement an IP addressing scheme and IP services to meet network requirements for a small branch office
        4. Implement a small routed network
        5. Explain and select the appropriate administrative tasks required for a WLAN
        6. Identify security threats to a network and describe general methods to mitigate those threats
        7. Implement and verify WAN links
    7. Introduction
      1. How This Book Helps You
      2. Network Hardware and Software Requirements
      3. Advice on Taking the Exam
    8. 1. Standard Internetworking Models
      1. Introduction
      2. What Is an Internetwork?
      3. Types of Internetworks
        1. Local Area Network (LAN)
        2. Metropolitan Area Network (MAN)
        3. Wide Area Network (WAN)
        4. Storage Area Network (SAN)
        5. Virtual Private Network (VPN)
      4. Open Systems Interconnection (OSI) Model
        1. Upper Layers
        2. Application Layer
        3. Presentation Layer
        4. Session Layer
        5. Lower Layers
        6. Transport Layer
        7. Network Layer
        8. Data Link Layer
          1. Media Access Control (MAC)
          2. Logical Link Control (LLC)
        9. Physical Layer
        10. OSI Layered Communications
      5. TCP/IP Model
        1. Application Layer
        2. Transport Layer
          1. TCP
          2. UDP
        3. Internet Layer
          1. IP
          2. ICMP
          3. ARP, RARP, and Proxy ARP
        4. Network Interface Layer
      6. Cisco 3-Layer Hierarchical Model
        1. Access Layer
        2. Distribution Layer
        3. Core Layer
      7. Chapter Summary
        1. Key Terms
      8. Apply Your Knowledge
        1. Exercises
          1. 1.1. OSI Layered Model Identification
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    9. 2. Physical Layer Networking Concepts
      1. Introduction
      2. Network Topologies
        1. The Bus Topology
        2. The Ring Topology
        3. The Star Topology
        4. The Mesh Topology
      3. Cabling
        1. Coaxial Cable
        2. Twisted-Pair Cable
          1. Straight-Through Cable
          2. Cross-Over Cable
          3. Rolled Cable
        3. Fiber-Optic Cable
      4. Wireless
        1. Wireless Fidelity (Wi-Fi)
        2. Infrared
        3. Bluetooth
      5. Physical Layer Devices
        1. Repeaters
        2. Hubs
        3. Network Interfaces
      6. Chapter Summary
        1. Key Terms
      7. Apply Your Knowledge
        1. Exercises
          1. 2.1. UTP Cable Categories
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    10. 3. Data Link Networking Concepts
      1. Introduction
      2. Data Link Protocols
        1. Token Ring
        2. FDDI
        3. Ethernet at the Data Link Layer
          1. Ethernet Addressing
          2. Ethernet Framing
      3. Physical Ethernet Standards
        1. Ethernet
          1. 10BASE2
          2. 10BASE5
          3. 10BASE-T
          4. 10BASE-FL
        2. Fast Ethernet
          1. 100BASE-T4
          2. 100BASE-TX
          3. 100BASE-FX
        3. Gigabit Ethernet
          1. 1000BASE-T 802.3ab
          2. 1000BASE-X 802.3z
        4. 10-Gigabit Ethernet (10GbE)
        5. Long Reach Ethernet
      4. Data Link Layer Devices
        1. Bridges
        2. Switches
      5. Duplex
      6. Microsegmentation
      7. Chapter Summary
        1. Key Terms
      8. Apply Your Knowledge
        1. Exercises
          1. 3.1. IEEE 802.3 Ethernet Standards
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    11. 4. General Network Security
      1. Introduction
      2. Classes of Attack
        1. Access Attacks
          1. Password Attacks
          2. Trust Exploitation
          3. Port Redirection
          4. Man-in-the-Middle Attacks
        2. Reconnaissance Attacks
          1. Packet Sniffers
          2. Ping Sweeps
          3. Port Scans
          4. Information Queries
        3. Denial of Service (DoS) Attacks
          1. Distributed DoS (DDoS)
          2. TCP SYN
          3. Smurf Attack
      3. Mitigating Network Threats
        1. AAA
        2. Cisco ACLs
        3. Cisco IOS Secure Management Features
          1. SSH
          2. SNMP
          3. Syslog
          4. NTP
        4. Encryption Protocols
        5. Security Appliances and Applications
      4. Chapter Summary
        1. Key Terms
      5. Apply Your Knowledge
        1. Exercise
          1. 4.1 . Mitigation Methods
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    12. 5. IP at the Network Layer
      1. Introduction
      2. Network Layer Functions
      3. IP Addressing and Formats
        1. Binary
          1. Converting Binary to Decimal
          2. Converting Decimal to Binary
        2. Hexadecimal
          1. Converting Decimal to Hexadecimal
        3. IP Address Classes
        4. Subnet Masks
        5. Private (RFC 1918) Addressing
      4. Subnetting IP
        1. Calculating Hosts in a Subnet
        2. Calculating Networks in a Subnet
          1. Zero Subnet Rule
        3. The Increment
        4. Determining the Range of Valid IPs
      5. Network Layer Devices
        1. Routers
        2. Layer 3 Switches
      6. Chapter Summary
        1. Key Terms
      7. Apply Your Knowledge
        1. Exercises
          1. 5.1. Converting Binary to Decimal
          2. 5.2. Converting Decimal to Binary
          3. 5.3. Converting Decimal to Hexadecimal
          4. 5.4. Binary Chart
          5. 5.5. Identify the Network ID
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    13. 6. Introduction to Cisco Routers and Switches
      1. Introduction
      2. Interfaces and Modules
        1. LAN Interfaces
        2. WAN Interfaces
          1. BRI
          2. Synchronous Serial
          3. Asynchronous Serial
          4. HSSI
          5. T1 Controller Card
          6. Data Communications Equipment (DCE)
          7. Data Terminal Equipment (DTE)
      3. Cisco Memory Components
        1. ROM
        2. Flash
        3. RAM
        4. NVRAM
      4. Cisco Internetworking Operating System
        1. Feature Sets
        2. IOS Image File Naming
      5. Cisco Router Models and Features
      6. Cisco Switch Models and Features
      7. Chapter Summary
        1. Key Terms
      8. Apply Your Knowledge
        1. Exercises
          1. 6.1 . Cisco Memory Components
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    14. 7. Foundation Cisco IOS Operations
      1. Introduction
      2. Terminal Options
        1. Console Port
        2. Auxiliary Port
        3. Telnet
        4. HTTP and HTTPS
        5. SSH
      3. Router/Switch Startup Procedures
        1. POST
        2. Bootstrap
          1. ROMmon
        3. IOS Loading
        4. Configuration Loading
          1. Setup Mode
          2. Password Recovery
      4. Navigating the IOS
        1. User EXEC
        2. Privileged EXEC
        3. Global Configuration
          1. Interface Configuration
          2. Line Configuration
        4. Context-Sensitive Help
        5. Abbreviations
        6. Shortcut Keys
        7. Common Syntax Errors
      5. Chapter Summary
        1. Key Terms
      6. Apply Your Knowledge
        1. Exercises
          1. 7.1. Navigating a New Router
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    15. 8. Foundation Cisco Configurations
      1. Introduction
      2. Global Configuration
        1. Altering the Boot Sequence
        2. Changing the Hostname
        3. Creating a Login Banner
        4. Assigning a Password for Privileged EXEC Mode
        5. Domain Name–Specific Commands
        6. Enabling SSH
      3. Line Configurations
        1. Securing Console Access to User EXEC
        2. Securing Auxiliary Access to User EXEC
        3. Securing Telnet and SSH Access to User EXEC
      4. Router Interface Configurations
        1. Assigning an IP Address
        2. Enabling the Interface
        3. LAN-Specific Commands
        4. WAN-Specific Commands
      5. Saving Configurations
      6. Using the show Command to Get Information
        1. Verifying Your Configurations
        2. Viewing Interface Statuses and Statistics
          1. show interfaces Command
          2. show ip interface brief Command
          3. show controller Command
        3. IOS File Version show Commands
      7. Troubleshooting Commands
      8. Backing Up and Restoring Configurations and IOS Using TFTP
      9. Neighbor Discovery with CDP
      10. Using Telnet for Virtual Terminal Access
        1. Terminal Monitor
      11. IOS DHCP
      12. Chapter Summary
        1. Key Terms
      13. Apply Your Knowledge
        1. Exercises
          1. 8.1. Configuring a New Router
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    16. 9. Understanding the Cisco SDM
      1. Introduction
      2. Getting Started
      3. Global Configurations
        1. Changing the Hostname, Banner, Domain Name, and Secret Password
        2. Router Access
        3. DNS
        4. DHCP
      4. Router Interface Configurations
        1. Assigning an IP Address
        2. Enabling the Interface
        3. Saving and Verifying Your Configurations
      5. Monitoring
      6. Chapter Summary
        1. Key Terms
      7. Apply Your Knowledge
        1. Exercise
          1. 9.1. SDM Configuration
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    17. 10. Introduction to Routing and Routing Protocols
      1. Introduction
      2. The Default Gateway
        1. Verifying and Troubleshooting the Default Gateway
      3. Routing Sources
        1. Administrative Distance
      4. Static Routes
        1. Configuring Static Routes
        2. Floating Static Routes
      5. Default Routes
      6. Configuring Static and Default Routes with SDM
      7. Verifying Static and Default Routes
        1. Dynamic Routing Protocols
        2. Routing Metrics
        3. Classful and Classless Routing Updates
        4. VLSM
          1. Route Summarization
        5. Interior and Exterior Gateway Routing Protocols
        6. Distance Vector Routing Protocols
        7. Link-State Routing Protocols
        8. Advanced Distance Vector/Hybrid Routing Protocols
      8. The Routing Table Revisited
      9. Routing Redistribution
      10. Chapter Summary
        1. Key Terms
      11. Apply Your Knowledge
        1. Exercises
          1. 10.1. Create a Static and Default Route
          2. 10.2. Create a Summary Route
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    18. 11. Distance Vector Routing Protocols
      1. Introduction
        1. Distance Vector Operations
        2. Routing Loops
      2. Routing Loop Mitigation
        1. Counting to Infinity
        2. Split Horizon
        3. Route Poison, Poison Reverse, and Hold-Down Timers
        4. Triggered Updates
        5. Invalid/Dead Timers
      3. RIP
        1. RIP Characteristics
        2. RIP Configuration
        3. Passive Interfaces
        4. RIPv2 Characteristics
        5. RIPv2 Configuration
        6. Configuring RIP with SDM
        7. RIP Verification
        8. Troubleshooting RIP
      4. Chapter Summary
        1. Key Terms
      5. Apply Your Knowledge
        1. Exercises
          1. 11.1. Configure RIPv2 Router A
          2. 11.2. Configure RIPv2 Router B
          3. 11.3. Verify Routing
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    19. 12. Enabling Internet Connectivity with NAT
      1. Introduction
      2. NAT Concepts
        1. Static NAT
        2. Dynamic NAT
        3. NAT Overload and Port Address Translation
      3. NAT Terminology
      4. Configuring NAT Using Cisco SDM
        1. Configuring NAT Overload
          1. Advanced NAT Wizard
          2. Edit NAT Configuration
      5. Verifying NAT Configuration
      6. Troubleshooting NAT
      7. Chapter Summary
        1. Key Terms
        2. Review Questions
      8. Apply Your Knowledge
        1. Exam Questions
        2. Answers to Review Questions
        3. Answers to Exam Questions
        4. Suggested Reading and Resources
    20. 13. Foundation Switching Operations
      1. Introduction
        1. Switching Functionality
      2. Frame Transmission Methods
        1. Store-and-Forward
        2. Cut-Through
        3. Fragment-Free
      3. Half- and Full-Duplex Connections
      4. Switching Design
      5. Spanning Tree Protocol
        1. Root Bridge
        2. Root Ports
        3. Designated Ports
        4. Blocked Ports
      6. Port State Transitions
      7. Initial Switch Configurations
        1. Assigning a Management IP Address to a Switch
        2. Defining a Default Gateway
        3. IP Assignment Using DHCP
        4. Configuring Multiple Switch Interfaces
        5. Verifying Spanning Tree Protocol
      8. Troubleshooting Basic Switch Connectivity
      9. Chapter Summary
        1. Key Terms
      10. Apply Your Knowledge
        1. Exercises
          1. 13.1. Basic Switch Configuration
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    21. 14. Implementing Switch Security
      1. Introduction
      2. Securing Physical Access to the Catalyst Switch
      3. Securing Terminal Access to the Catalyst Switch
        1. To Telnet or Not to Telnet
        2. Additional IOS Security Practices
      4. Layer 2 Security
        1. Port Security
          1. Static MAC with Port Security
          2. Verifying Port Security
        2. “See”DP
      5. Chapter Summary
        1. Key Terms
      6. Apply Your Knowledge
        1. Exercises
          1. 14.1. The Impregnable IOS
          2. 14.2. Layer 2 Security To-Do
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    22. 15. Understanding Wireless Networking
      1. Introduction
      2. The Business Case
      3. The Players in the 802.11 Market
      4. Entering the Radio Frequency World
        1. Understanding Wireless Transmission
        2. Unlicensed RF Bands
        3. The Key to Successful Wireless: Channel Surfing
      5. The 802.11 Standards Family
        1. Party Like It’s 1999: 802.11a and 802.11b
        2. 2003 Delivers: 802.11g
        3. The Next Generation: 802.11n
      6. Chapter Summary
        1. Key Terms
      7. Apply Your Knowledge
        1. Exercise
          1. 15.1. Designing a Wireless Network
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Readings and Resources
    23. 16. Wireless Security and Implementation Considerations
      1. Introduction
      2. Understanding the Threats
        1. War Driving
        2. Direct Hacking
        3. Employee Ignorance
      3. Deploying a Secure Wireless Network
        1. Wireless Encryption
          1. Wired Equivalent Privacy (WEP)
          2. Wi-Fi Protected Access (WPA)
          3. Wi-Fi Protected Access, Reloaded (WPA2 and 802.11i)
        2. Wireless Authentication (802.1x)
        3. Wireless Intrusion Prevention System (IPS)
      4. Wireless Implementation Guidelines
        1. Understanding Wireless Topologies
        2. Understanding Wireless Data Rates
        3. General Wireless Implementation Steps
        4. Wireless Troubleshooting
          1. Client Troubleshooting
          2. Wireless Access Point Troubleshooting
      5. Chapter Summary
        1. Key Terms
      6. Apply Your Knowledge
        1. Review Questions
        2. Exam Questions
        3. Answers to Review Questions
        4. Answers to Exam Questions
        5. Suggested Readings and Resources
    24. 17. Wide Area Network Connections
      1. Introduction
      2. WAN Connection Types
        1. Leased Lines
          1. In the Field
        2. Circuit-Switched Networks
        3. Packet-Switched Networks
        4. Broadband
        5. Virtual Private Networks (VPNs)
        6. Metropolitan Ethernet (Metro Ethernet)
      3. The WAN Physical Layer
      4. WAN Data Link Encapsulations
        1. Serial Line Internet Protocol (SLIP)
        2. Point-to-Point Protocol (PPP)
        3. Cisco High-Level Data Link Control (HDLC)
        4. X.25 Link Access Procedure, Balanced (LAPB)
        5. Frame Relay
        6. Asynchronous Transfer Mode (ATM)
        7. PPP over Ethernet (PPPoE) and PPP over ATM (PPPoA)
      5. Cisco HDLC
      6. PPP
        1. Sub-Layer 1: ISO HDLC
        2. Sub-Layer 2: Link Control Protocol (LCP)
          1. Authentication
            1. PAP
            2. CHAP
          2. Callback
          3. Compression
            1. Stacker
            2. Predictor
            3. Microsoft Point-to-Point Compression
          4. Multilink
        3. Sub-Layer 3: Network Control Protocol
      7. Configuring PPP
        1. Authentication
        2. Compression
      8. Verifying PPP
      9. Troubleshooting PPP
      10. Chapter Summary
        1. Key Terms
      11. Apply Your Knowledge
        1. Exercises
          1. 15.1. Troubleshooting PPP Connections
        2. Review Questions
        3. Exam Questions
        4. Answers to Review Questions
        5. Answers to Exam Questions
        6. Suggested Reading and Resources
    25. Fast Facts
      1. OSI Model in Review
        1. Application Protocols Supported by the Application Layer
      2. Network Domains
      3. Cabling, Lines, and Services
      4. MAC Addressing
      5. Framing and Duplex Types
      6. WAN Interfaces
      7. Memory Types
      8. IOS File Naming Conventions
      9. Utilities Using ICMP
      10. Network Security
        1. Access Attacks
        2. Reconnaissance Attacks
        3. Denial of Service (DoS) Attacks
      11. Mitigating Network Threats
      12. IP Addressing
        1. Classless Addressing
        2. Private Ranges
        3. Subnetting
      13. IPv6
        1. Types of IPv6 Addresses
        2. Integrating IPv4 and IPv6
      14. Layer 3 Functions
      15. IOS Terminal Access Methodologies
      16. IOS Boot Processes
      17. IOS Navigation
        1. Context-Sensitive Help
        2. Terminal Editing Keys
        3. Syntax Errors
      18. Global Configuration Commands
      19. Securing the IOS
        1. SSH
      20. Interface Configuration Commands
      21. Switch Commands
      22. The Copy Command
      23. The Show Command
        1. Interface Status
      24. Cisco Discovery Protocol
      25. Telnet
      26. DHCP
      27. Switches
        1. Duplex Connections
        2. Port Security
      28. Routing Characteristics
        1. Routing Sources
        2. Static and Default Routes
      29. Dynamic Routing Protocols
        1. Routing Metrics
        2. Interior and Exterior Gateway Routing Protocols
        3. Classful and Classless Routing Updates
        4. Routing Protocol Classes
        5. Redistribution
      30. Distance Vector Routing Loop Mitigation
      31. RIP and RIPv2
        1. RIP Configuration
          1. RIPv2 Configuration
          2. Verifying and Troubleshooting RIP
      32. Wireless Networking
      33. Wireless Security and Implementation
      34. Network Address Translation (NAT)
      35. Wide-Area Networks
    26. Practice Exam
    27. Answers to Practice Exam
      1. Answers at a Glance
      2. Answers with Explanations
    28. What’s on the CD-ROM
      1. Multiple Test Modes
        1. Study Mode
        2. Certification Mode
        3. Custom Mode
      2. Attention to Exam Objectives
      3. Installing the CD
      4. Creating a Shortcut to the MeasureUp Practice Tests
      5. Technical Support
    29. Glossary