You are previewing CCENT Exam Cram (Exam 640-822).
O'Reilly logo
CCENT Exam Cram (Exam 640-822)

Book Description

In this book, you learn how to:

  • Develop perfect fluency in subnetting

  • Understand the OSI model and the Cisco three-layer hierarchical model

  • Connect Cisco equipment, make initial configurations, and connect to other devices to build a network

  • Configure Cisco routers and back up and restore your Cisco IOS Software configurations

  • Implement, verify, and troubleshoot a small, switched network

  • Configure and verify a basic WAN serial connection

  • Understand and apply wireless LAN (WLAN) concepts

  • Mitigate network security threats and secure network devices

  • Configure static routes and RIPv2

  • Connect a small office to the Internet

  • WRITTEN BY CCNA/CCENT Experts!

    Michael Valentine has been in the IT field for 12 years, focusing on network design and implementation. He is currently a Cisco trainer with Skyline Advanced Technology Services and specializes in Cisco Unified Communications instruction as well as CCNA and CCNP courses.

    Andrew Whitaker is the director of enterprise InfoSec and networking and senior training instructor for Training Camp. He has achieved several Cisco certifications and has written on several Cisco topics.

    This book includes a CD-ROM that features:

  • Complete coverage of CCENT exam objectives

  • Realistic exam questions for effective practice

  • Detailed explanations of correct and incorrect answers

  • Multiple exam modes

  • Flash Card format

  • An electronic copy of the book

  • Table of Contents

    1. Copyright
      1. Dedication
    2. About the Authors
    3. Acknowledgments
    4. Tell Us What You Think!
    5. Reader Services
    6. Introduction
      1. Taking a Certification Exam
      2. Tracking Your Certification Status
      3. How to Prepare for an Exam
      4. What This Book Will Not Do
      5. What This Book Is Designed to Do
      6. About This Book
        1. Chapter Formats
        2. Contacting the Authors
    7. Self-Assessment
      1. CCENT/CCNA in the Real World
        1. The Ideal CCENT/CCNA Candidate
        2. Put Yourself to the Test
          1. Educational Background
          2. Hands-on Experience
          3. Testing Your Exam Readiness
          4. Assessing Your Readiness for the CCENT Exam
    8. 1. Networking Fundamentals
      1. Introduction
      2. Components and Terms
      3. Topologies
      4. LAN Technologies
        1. Ethernet
      5. WAN Technologies
        1. Dedicated Leased Line Connections
        2. Circuit-Switched Connections
        3. Packet-Switched Connections
        4. Cell-Switched Connections
      6. Wireless Networks
      7. Other Network Technologies
      8. Exam Prep Questions
      9. Answers to Exam Prep Questions
    9. 2. Network Models
      1. Introduction
      2. Cisco Hierarchical Model
        1. Access Layer
        2. Distribution Layer
        3. Core Layer
        4. Advantages of the Three-Layer Model
      3. OSI Model
        1. Layer 7: The Application Layer
        2. Layer 6: The Presentation Layer
        3. Layer 5: The Session Layer
        4. Layer 4: The Transport Layer
          1. Reliable Communication with TCP
          2. The TCP Sliding Window
          3. Port Numbers
          4. Unreliable Communication with UDP
        5. Layer 3: The Network Layer
        6. Layer 2: The Data Link Layer
        7. Layer 1: The Physical Layer
          1. Sending Data Between Hosts
        8. TCP/IP Model
      4. Exam Prep Questions
      5. Answers to Exam Prep Questions
    10. 3. Concepts in IP Addressing
      1. Introduction
      2. Binary
      3. Hexadecimal
      4. Conversion Between Binary, Hex, and Decimal
        1. Decimal to Hexadecimal Conversions
        2. Hexadecimal to Decimal Conversions
      5. IP Address Components
        1. Address Class
        2. Default Subnet Mask
        3. The Network Field
        4. The Host Field
        5. Non-Default Masks
        6. The Subnet Field
      6. Subnetting
        1. Address Class and Default Mask
        2. The Increment
        3. Number of Hosts
        4. The Broadcast ID
        5. Number of Subnets
        6. Working with Subnetting Questions
          1. Determining Host Requirements
          2. Determining Subnet Requirements
          3. Determining Increment-based Requirements
        7. The Subnetting Chart
      7. Exam Prep Questions
      8. Answers to Exam Prep Questions
    11. 4. Working with Cisco Equipment
      1. Introduction
      2. Products
      3. External Connections
        1. Console
        2. Aux Port
        3. Ethernet Port
        4. Serial Port
        5. Other Connections
      4. Connecting and Configuring Cisco Devices
        1. Device Memory Locations
        2. IOS Startup Process
        3. Setup Mode
        4. Configuration Register
        5. Password Recovery
          1. Password Recovery
        6. Command Line Modes
        7. Command Shortcuts
      5. Context-Sensitive Help
        1. Basic Switch Configuration
          1. Setting the Hostname
          2. Setting a Management IP Address
          3. Setting Speed and Duplex on Ethernet Ports
        2. Basic Router Configuration
          1. Serial Port Configuration
          2. Enabling Interfaces
      6. Securing Routers and Switches
        1. Configuring SSH Access to Your Router
      7. Exam Prep Questions
      8. Answers to Exam Prep Questions
    12. 5. Managing Your Router
      1. Introduction
      2. IOS Naming Conventions
      3. Back Up and Restore IOS
      4. Backup and Restore Configurations
      5. Troubleshooting and Remote Management
        1. Telnet
        2. Secure Shell (SSH)
        3. CDP
        4. ICMP
      6. Exam Prep Questions
      7. Answers to Exam Prep Questions
    13. 6. Basic Catalyst Switch Operations and Configuration
      1. Introduction
      2. Bridging and Switching
        1. Functions of Bridges and Switches
          1. Address Learning
          2. Frame Forwarding
        2. The Differences Between Switches and Bridges
        3. Switching Modes
          1. Store and Forward
          2. Cut Through
          3. Fragment Free
          4. Switch Connections
          5. Duplex Configuration
        4. STP
      3. Exam Prep Questions
      4. Answers to Exam Prep Questions
    14. 7. Introduction to Wide-Area Networks
      1. Introduction
      2. Encapsulation Types
      3. Cisco HDLC
      4. PPP
        1. Components
          1. Authentication with PAP and CHAP
        2. Configuration
        3. Verification and Troubleshooting
      5. Frame Relay
        1. Concepts and Terminology
          1. Virtual Circuits and Network Design
          2. DLCI
          3. LMI
          4. CIR
          5. BECN and FECN
          6. Inverse-Arp
          7. NBMA
        2. The Split Horizon Problem
          1. Subinterfaces
        3. Configuration
        4. Verification and Troubleshooting
      6. Network Address Translation
        1. NAT Terminology
        2. Applications, Advantages, and Disadvantages of NAT
        3. Static NAT
        4. Dynamic NAT
        5. PAT
          1. Verification and Troubleshooting NAT and PAT
      7. Exam Prep Questions
      8. Answers to Exam Prep Questions
    15. 8. Wireless LANs
      1. Introduction
      2. WLAN Standards
        1. Unlicensed Radio Bands
        2. 802.11
        3. 802.11a
        4. 802.11b
        5. 802.11g
        6. 802.11n
      3. WLAN Operational Modes
        1. Ad Hoc Mode
        2. Infrastructure Mode
          1. Autonomous Mode
          2. Lightweight Mode
      4. Basic Service Set and Extended Service Set
        1. BSS
        2. ESS
      5. WLAN Security
        1. WLAN Security Threats
        2. WLAN Security Methods
        3. WLAN Security Standards
          1. WEP
          2. The Cisco Interim Solution
          3. WPA
          4. 802.11i/WPA2
      6. Basic WLAN Configuration Steps
      7. Exam Prep Questions
      8. Answers to Exam Prep Questions
    16. 9. Basic Network Security
      1. Introduction
      2. The Need for Security
      3. Mitigation Steps
        1. Reconnaissance Attacks
        2. Access Attacks
        3. Denial of Service Attacks
      4. Common Security Appliances
      5. Best Practices
      6. Exam Prep Questions
      7. Answers to Exam Prep Questions
    17. 10. Basic Routing
      1. Introduction
        1. Static Routes
        2. Default Routes
        3. Dynamic Routes
          1. Administrative Distance
          2. Metrics
          3. Distance Vector Routing Protocols
            1. Controlling Routing Loops
          4. Link State Routing Protocols
          5. The Cisco Hybrid: EIGRP
      2. RIP
        1. Characteristics of RIP
        2. Implementing RIP
        3. Verifying and Troubleshooting RIP
      3. Exam Prep Questions
      4. Answers to Exam Prep Questions
    18. 11. Small-Office Internet Connection
      1. Introduction
      2. Basic Configuration Using the Cisco Router and Security Device Manager (SDM)
        1. Setting Hostname, Domain, and Login Credentials
        2. Configuring IP Addressing Using SDM Express
        3. Configuring the DHCP Server Using SDM Express
        4. Setting Up the Wan Interface in SDM Express
        5. Configuring NAT Using SDM Express
        6. Firewall Option
        7. Security Configuration Checklist
        8. SDM Express Configuration Summary
          1. Reconnecting After SDM Express Applies Changes
          2. Reconnecting to the SDM Interface
        9. Configuring a Default Route in SDM
        10. Testing Connectivity Using the SDM Interface
      3. Basic Switch Configuration Using the CLI
        1. Securing the Switch
        2. Configuring a Management IP and Default Gateway
      4. Exam Prep Questions
      5. Answers to Exam Prep Questions
    19. Practice Exam 1
      1. Hints and Pointers
      2. Practice Exam #1
    20. Practice Exam 1 Answer Key
    21. Practice Exam 2
      1. Hints and Pointers
      2. Practice Exam #2
    22. Answers to Practice Exam 2
    23. A. 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
    24. B. Need to Know More?
      1. Introduction
      2. CCENT and Basic Networking
      3. CCNA/ICND2 and Other Advanced Topics
    25. Glossary
      1. A
      2. B
      3. C
      4. D
      5. E
      6. F
      7. G
      8. H
      9. I
      10. K
      11. L
      12. M
      13. N
      14. O
      15. P
      16. R
      17. S
      18. T
      19. U
      20. V
      21. W
    26. Exam Cram: The CCENT Cram Sheet
      1. OSI Model
      2. TCP and UDP
        1. CDP
      3. LAN Technology
      4. Switching
      5. Boot Sequence for Router/Switch
      6. Securing Your Router
      7. Configuring SSH
      8. WAN
        1. IPSec
      9. Basic Security
      10. Wireless LANs
      11. Network Address Translation
        1. Terminology
      12. PPP
        1. Configuration of PPP
      13. Frame Relay
      14. Troubleshooting Commands and Outputs