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CCENT/CCNA: ICND1 100-105 Certification Guide

Book Description

Become familiar with ICND1 (100-105) exam objectives, and learn how to get ready for the exam

About This Book
  • A step by step guide that will build you skills from basic concepts to completely understanding network communication
  • Comprehensive coverage to help you implement the knowledge you've gained in real-world scenarios
  • Take practice questions and mock tests to check how prepared you are for the CCENT exam
Who This Book Is For

If you are a Network Administrator, Network Technician, Networking professional, or would simply like to prepare for your CCENT certification, then this book is for you. Some basic understanding of networks and how they work would be helpful. Sufficient information will be provided to those new to this field.

What You Will Learn
  • Get to grips with the computer network concepts
  • Understand computer network components and learn to create a computer network
  • Understand switching and learn how to configure a switch
  • Understand routing and learn how to configure a router
  • Understand network services and the maintenance process
  • Learn how to troubleshoot networking issues
  • Become familiar with, and learn how to prepare for, the ICND1 100-105 exam
In Detail

CCENT is the entry-level certification for those looking to venture into the networking world. This guide will help you stay up-to date with your networking skills. This book starts with the basics and will take you through everything essential to pass the certification exam. It extensively covers IPv4 and IPv6 addressing, IP data networks, switching and routing, network security, and much more—all in some detail. This guide will provide real-world examples with a bunch of hands-on labs to give you immense expertise in important networking tasks, with a practical approach. Each chapter consists of practice questions to help you take up a challenge from what you have procured. This book ends with mock tests with several examples to help you confidently pass the certification. This Certification Guide consists of everything you need to know in order to pass the ICND 1 100-105 Exam, thus obtaining a CCENT certification. However, practicing with real switches and routers or a switch or router simulator will help you succeed.

Style and approach

This book is for everyone! It will help beginners who are taking their first steps into the world of computer networks. At the same time, this book can be used by intermediate and advanced network administrators to recap computer network concepts. It will be a handy certification guide for anyone who is studying and preparing to take the Interconnecting Cisco Networking Devices Part 1 (100-105) exam, thus obtaining CCENT certification, which will be a handy professional asset.

Downloading the example code for this book You can download the example code files for all Packt books you have purchased from your account at http://www.PacktPub.com. If you purchased this book elsewhere, you can visit http://www.PacktPub.com/support and register to have the files e-mailed directly to you.

Table of Contents

  1. Title Page
  2. Copyright and credits
    1. CCENT/CCNA: ICND1 100-105 Certification Guide
  3. Dedication
  4. Packt Upsell
    1. Why subscribe?
    2. PacktPub.com
  5. Contributors
    1. About the author
    2. About the reviewer
    3. Packt is searching for authors like you
  6. Preface
    1. Who this book is for
    2. What this book covers
    3. To get the most out of this book
      1. Download the color images
      2. Conventions used
    4. Get in touch
      1. Reviews
  7. Introduction to Computer Networks
    1. From ARPANET to internet
    2. What is a computer network?
      1. Requirements for designing a computer network
    3. Types of computer networks
      1. Personal area network (PAN)
      2. Local area network (LAN)
      3. Metropolitan area network (MAN)
      4. Wide area network (WAN)
        1. Intranet
        2. Extranet
    4. Computer network topologies
      1. Physical topology
        1. Bus
        2. Ring
        3. Star
        4. Extended star
        5. Hierarchical
        6. Mesh
      2. Logical topology
    5. Computer network components
      1. Clients
      2. Servers
      3. Hosts and nodes
      4. Network interface
      5. Peripheral devices
      6. Applications and shared data
      7. Hubs and switches
      8. Routers
    6. Infrastructure components
      1. Firewall
      2. Wireless access point
      3. Wireless access controller
    7. Computer network architectures
      1. Peer-to-peer networking (P2P)
      2. Client/server networking
    8. Network operating system (NOS)
      1. Windows
      2. Linux
      3. macOS X Server
    9. Network medium
      1. Twisted pairs
      2. Coaxial
      3. Fibre optic
      4. Infrared and Bluetooth
      5. Radio waves
      6. Satellite
    10. Converged networks
      1. Growing complexity of networks
      2. Elements of converged networks
      3. Access, distribution, and core layers
    11. Network trends
    12. Summary
    13. Questions
  8. Communication in Computer Networks
    1. How do computers communicate?
      1. Message encoding
      2. Message formatting and encapsulation
      3. Message size
      4. Message timing
    2. Message delivery types
      1. Unicast transmission
      2. Multicast transmission
      3. Broadcast transmission
    3. Types of communication channels
      1. Simplex
      2. Half-duplex
      3. Full-duplex
    4. Communication protocols
      1. Characteristics of communication protocols
        1. Connection-oriented protocols
        2. Connectionless protocols
        3. Circuit switching versus packet switching
      2. Well-known communication protocols
    5. OSI and TCP/IP model overview
      1. TCP/IP protocol model
      2. OSI reference model
    6. OSI layers and their protocols
      1. Physical layer protocols
      2. Data link layer protocols
      3. Network layer protocols
      4. Transport layer protocols
      5. Session layer protocols
      6. Presentation layer protocols
      7. Application layer protocols
    7. Ethernet communication technology
      1. Ethernet history
      2. Ethernet protocols
      3. Ethernet frame
      4. Ethernet MAC addresses
      5. Ethernet's CSMA CD vs. Ethernet's CSMA CA
    8. The IP addresses and subnets
      1. IPv4 network addresses
        1. Public IP addresses
        2. Private IP addresses
        3. Loopback IP address
        4. Automatic Private IP Addressing (APIPA)
        5. Unicast, multicast, and broadcast addresses
        6. Class A addresses
        7. Class B addresses
        8. Class C addresses
        9. Class D addresses
        10. Class E addresses
      2. IPv6 network addresses
        1. Global unicast addresses
        2. Link-local addresses
        3. Unique local addresses
        4. Loopback address
        5. "This host, this network" address
        6. Multicast addresses
        7. Anycast
        8. Autoconfiguration
      3. Subnetting
        1. Classful subnetting
        2. Classless subnetting
        3. IPv6 subnetting
    9. Summary
    10. Questions
  9. Introduction to Switching
    1. What is switch?
      1. Switch essentials
      2. MAC address table
      3. MAC learning and aging
      4. Frame switching
      5. Frame flooding
    2. Switching general concepts
      1. Ingress and egress ports
      2. Source and destination MAC addresses
        1. Unicast MAC address
        2. Multicast MAC address
        3. Broadcast MAC address
    3. Switched networks
      1. The role of switched networks
      2. Features of the switch
        1. Fixed configuration switches
        2. Modular configuration switches
        3. Stackable configuration switches
    4. Frame forwarding methods
      1. Store-and-forward switching
      2. Cut-through switching
        1. Fast-forward switching
        2. Fragment-free switching
    5. Switching domains
      1. Collision domains
      2. Broadcast domains
      3. Network congestion
    6. Switch port settings
      1. Duplex and speed settings
      2. Auto-MDIX
    7. Overview of VLANs
      1. VLAN segmentation
      2. VLANs in a multiswitched environment
        1. VLAN trunks
        2. Inter-VLAN operation
    8. Ethernet's frame overview
      1. Ethernet frame encapsulation
      2. Ethernet frame fields
      3. Ethernet frame processing
    9. Switch security
      1. Secure remote access
        1. Telnet
        2. SSH
      2. Port security operation
    10. Summary
    11. Questions
  10. Setting Up the Switch
    1. Basic switch configuration
      1. Configuration with initial settings
        1. Boot sequence
        2. LED indicators
        3. Connecting to a switch and running initial configuration
        4. Configuring basic management access
      2. Configuring ports
    2. Configuring VLANs
    3. Configuring VLAN trunks
    4. Configuring legacy inter-VLAN routing
      1. Scenario – Router with multiple interfaces
      2. Verifying VLAN information on a switch
    5. Configuring router-on-a-stick inter-VLAN routing
      1. Scenario – Router with a single interface
      2. Verifying VLAN information on a switch
    6. Configuring remote access
      1. Configuring Telnet
      2. Configuring SSH
    7. Configuring switchport security
    8. Summary
    9. Questions
  11. Introduction to Routing
    1. Routing concepts
      1. Understanding host routing
        1. Host forwarding decisions
        2. Default gateway
        3. Host routing tables
    2. Routing operations
      1. Switching packets
        1. Router switching functions
      2. Sending packets
        1. Packet routing
        2. Forward to next-hop
        3. Reaching the destination
      3. Path determination
        1. Routing decision
        2. Selecting the best path
        3. Network Load Balancing (NLB)
        4. Administrative distance (AD)
    3. What is a router?
      1. A router is a computer
      2. Router's CPU and OS
      3. Anatomy of a router
      4. Connecting to a router
      5. LAN and WAN interfaces
    4. Boot up the router
      1. Router's boot up process
      2. Bootset files
    5. Router routing tables
      1. Understanding packet forwarding
      2. IPv4 routing table
      3. Directly connected routing table entries
      4. Remote network routing table entries
      5. Next-hop IP address
    6. Routing types
      1. Static routing
        1. Static route applications
      2. Dynamic routing
        1. Dynamic routing protocols
        2. Routing table terms
    7. Summary
    8. Questions
  12. Setting up the Router
    1. Connecting the router to a PC and turning it on
      1. Router LED indicators
      2. Console access
      3. Turning on the router
      4. Show version output
    2. Router's initial configuration
      1. Configuring basic router settings
      2. Configuring IPv4  and IPv6 addresses on router interfaces
    3. Configuring static routes and default static routes
      1. Configuring IPv4 static routes and default static routes
      2. Configuring IPv6 static routes and default static routes
    4. Configuring Routing Information Protocol (RIP)
    5. InterVLAN configuration
    6. Router-on-a-stick interVLAN configuration
    7. Summary
    8. Questions
  13. Networking Services and Maintenance
    1. Dynamic Host Configuration Protocol overview
      1. Assigning IPv4 addresses dynamically
        1. Configuring DHCPv4
      2. Assigning IPv6 addresses dynamically
        1. Configuring stateless DHCPv6
        2. Configuring Stateful DHCPv6
    2. Network Address Translator overview
      1. Configuring static NAT
      2. Configuring dynamic NAT
      3. Configuring PAT
      4. Configuring port forwarding
      5. NAT and IPv6
    3. Network Time Protocol overview
      1. Configuring and verifying NTP
    4. Cisco Discovery Protocol and Link-Layer Discovery Protocol overview
      1. Device discovery with CDP
      2. Device discovery with LLDP
    5. System logging overview
      1. Configuring syslog
    6. Device maintenance
      1. Router and switch file maintenance
        1. Router file systems
        2. Switch file systems
        3. Backing up and restoring text files
        4. Backing up and restoring to/from TFTP
        5. Using USB ports on a Cisco router
        6. Backing up and restoring to/from a USB flash drive
        7. Password recovery using ROMMON
      2. IOS system files
        1. IOS 15.0 system image packaging
        2. IOS image filename
      3. IOS image management
        1. TFTP servers as a backup location
        2. Steps to back up an IOS image to a TFTP server
        3. Copying an IOS image to a device
        4. The boot system command
      4.  Software licensing
        1. Licensing overview
        2. Licensing process
      5. License verification and management
        1. License verification
        2. Activating an evaluation right-to-use license
        3. Backing up the license
        4. Uninstalling the license
    7. Traffic management
    8. Summary
    9. Questions
  14. Network Troubleshooting
    1. Troubleshooting methodologies
      1. Basic approaches
      2. Resolve or escalate?
      3. Verifying and monitoring solutions
    2. Troubleshooting scenarios
      1. IP addressing issues on networking devices
      2. IP addressing issues on end devices
      3. Default gateway issues
      4. Troubleshooting DNS issues
    3. Troubleshooting cables and interfaces
      1. Cable problems
      2. Duplex operation
      3. Duplex mismatch
    4. Switch troubleshooting
      1. Recovering from a system crash
      2. Network access layer issues
      3. Troubleshooting network access layer issues
      4. Ports in error-disabled state
    5. Router troubleshooting
      1. Verifying IPv4 interface settings
      2. Verifying IPv6 interface settings
      3. The show history command
      4. Troubleshooting a missing route
      5. Solving a connectivity problem
    6. Troubleshooting VLANs
      1. IP addressing issues with VLANs
    7. Troubleshooting Access Control Lists
      1. Processing packets with ACLs
      2. Common IPv4 standard ACL errors
    8. Troubleshooting DHCP
      1. Troubleshooting DHCPv4
      2. Troubleshooting DHCPv6
    9. Troubleshooting NAT
      1. The show ip NAT commands
      2. The debug ip NAT command
    10. Basic network performance
      1. The ping command
      2. The traceroute and tracert commands
      3. The show commands
      4. Command syntax
      5. The debug command
    11. Network security
      1. Security threats and vulnerabilities
      2. Network attacks
      3. Network attack mitigation
      4. Device security
    12. Summary
    13. Questions
  15. Studying and Preparing for ICND 1 (100-105) Exam
    1. What is the ICND 1 (100-105) exam?
    2. What are the ICND 1 (100-105) exam topics?
      1. Topic 1.0–Network fundamentals (20%)
      2. Topic 2.0 - LAN switching fundamentals (26%)
      3. Topic 3.0 -  Routing fundamentals (25%)
      4. Topic 4.0 - Infrastructure services (15%)
      5. Topic 5.0 – Infrastructure maintenance (14%)
    3. What to expect in the ICND 1 (100-105) exam
    4. How to prepare for the ICDN 1 (100-105) exam
    5. How to register for the ICND 1 (100-105) exam?
    6. On the day of the ICND 1 (100-105) exam
    7. Post-ICND 1 (100-105) exam certification path
  16. Appendix A: Answers to Chapter Questions
    1. Chapter 1–Answers
    2. Chapter 2—Answers
    3. Chapter 3—Answers
    4. Chapter 4—Answers
    5. Chapter 5—Answers
    6. Chapter 6—Answers
    7. Chapter 7—Answers
    8. Chapter 8 — Answers
  17. Appendix B: Cisco Device Icons
    1. Cisco network topology icons
  18. Appendix C: Numbering Systems and Conversions
    1. Binary numbering system
      1. Decimal to binary conversion
      2. Binary to decimal conversion
    2. Octal numbering system
      1. Decimal to octal conversion
    3. Hexadecimal numbering system
      1. Decimal to hexadecimal conversion
  19. Appendix D: Boolean Algebra
    1. AND operation
    2. OR operation
    3. NOT operation
  20. Appendix E: Subnetting
    1. Example—Class A subnetting
    2. Example—Class B subnetting
    3. Example—Class C subnetting
  21. Appendix F: Cisco Packet Tracer
    1. Downloading Packet Tracer
    2. Installing Packet Tracer
  22. Appendix G: Graphical Network Simulator-3 (GNS3)
    1. Downloading GNS3
    2. Installing GNS3
  23. Other Books you may enjoy