larger cover

Add To My Wish List

Register your product to gain access to bonus material or receive a coupon.

Network Fundamentals: CCNA Exploration Companion Guide

Book

  • Sorry, this book is no longer in print.
Not for Sale
  • Description
  • Sample Content
  • Updates
  • Copyright 2012
  • Edition: 1st
  • Book
  • ISBN-10: 1-58713-348-2
  • ISBN-13: 978-1-58713-348-0

Each new purchase of an Exploration Companion guide comes with an exclusive coupon code that can be used to Save 65% on these two additional study resources:

1.     CCENT 640-822 Network Simulator: Software Download (www.ciscopress.com/title/1587202174)

2.     Network Fundamentals Companion Guide eBook (www.ciscopress.com/title/0132877449)

 


Network Fundamentals, CCNA Exploration Companion Guide is the official supplemental textbook for the Network Fundamentals course in the Cisco® Networking Academy® CCNA® Exploration curriculum version 4. The course, the first of four in the new curriculum, is based on a top-down approach to networking. The Companion Guide, written and edited by Networking Academy instructors, is designed as a portable desk reference to use anytime, anywhere. The book’s features reinforce the material in the course to help you focus on important concepts and organize your study time for exams.

New and improved features help you study and succeed in this course:

  • Chapter objectives—Review core concepts by answering the focus questions listed at the beginning of each chapter.
  • Key terms—Refer to the updated lists of networking vocabulary introduced and highlighted in context in each chapter.
  • Glossary—Consult the comprehensive glossary with more than 250 terms.
  • Check Your Understanding questions and answer key—Evaluate your readiness with the updated end-of-chapter questions that match the style of questions you see on the online course quizzes. The answer key explains each answer.
  • Challenge questions and activities—Strive to ace more challenging review questions and activities designed to prepare you for the complex styles of questions you might see on the CCNA exam. The answer key explains each answer.  

How To—Look for this icon to study the steps you need to learn to perform certain tasks.

Packet Tracer Activities— Explore networking concepts in activities interspersed throughout some chapters using

Packet Tracer v4.1 developed by Cisco. The files for these activities are on the accompanying CD-ROM.

Also available for the Network Fundamentals Course

Network Fundamentals, CCNA Exploration Labs and Study Guide

ISBN-10: 1-58713-203-6

ISBN-13: 978-1-58713-203-2

Companion CD-ROM

The CD-ROM provides many useful tools and information to support your education:

  • Packet Tracer Activity exercise files v4.1
  • VLSM Subnetting Chart
  • Structured Cabling Exploration Supplement
  • Taking Notes: a .txt file of the chapter objectives
  • A Guide to Using a Networker’s Journal booklet
  • IT Career Information
  • Tips on Lifelong Learning in Networking

This book is part of the Cisco Networking Academy Series from Cisco Press®. The products in this series support and complement the Cisco Networking Academy online curriculum.

Table of Contents

Introduction

Chapter 1 Living in a Network-Centric World

Objectives

Key Terms

Communicating in a Network-Centric World

    Networks Supporting the Way We Live

    Examples of Today’s Popular Communication Tools

    Networks Supporting the Way We Learn

    Networks Supporting the Way We Work

    Networks Supporting the Way We Play

Communication: An Essential Part of Our Lives

    What Is Communication?

    Quality of Communication

The Network as a Platform

    Communicating over Networks

    Elements of a Network

    Converged Networks

The Architecture of the Internet

    The Network Architecture

    Fault-Tolerant Network Architecture

    Scalable Network Architecture

    Providing Quality of Service

    Providing Network Security

Trends in Networking

    Where Is It All Going?

    Networking Career Opportunities

Summary

Activities and Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 2 Communicating over the Network

Objectives

Key Terms

The Platform for Communications

    The Elements of Communication

    Communicating the Messages

    Components of the Network

    End Devices and Their Role on the Network

    Intermediary Devices and Their Role on the Network

    Network Media

LANs, WANs, and Internetworks

    Local-Area Networks

    Wide-Area Networks

    The Internet: A Network of Networks

    Network Representations

Protocols

    Rules That Govern Communications

    Network Protocols

    Protocol Suites and Industry Standards

    Interaction of Protocols

    Technology-Independent Protocols

Using Layered Models

    The Benefits of a Layered Model

    Protocol and Reference Models

    TCP/IP Model

    Communication Process

    Protocol Data Units and Encapsulation

    Sending and Receiving Process

    OSI Model

    Comparing the OSI Model to the TCP/IP Model

Network Addressing

    Addressing in the Network

    Getting Data to the End Device

    Getting Data Through the Internetwork

    Getting Data to the Right Application

Summary

Activities and Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 3 Application Layer Functionality and Protocols

Objectives

Key Terms

Applications: The Interface Between the Networks

    OSI and TCP/IP Model

    Application Layer Software

    User Applications, Services, and Application Layer Protocols

    Application Layer Protocol Functions

Making Provisions for Applications and Services

    Client/Server Model

    Servers

    Application Layer Services and Protocols

    Peer-to-Peer (P2P) Networking and Applications

Application Layer Protocols and Services Examples

    DNS Services and Protocol

    WWW Service and HTTP

    E-Mail Services and SMTP/POP Protocols

    E-Mail Server Processes: MTA and MDA

    FTP

    DHCP

    File-Sharing Services and SMB Protocol

    P2P Services and Gnutella Protocol

    Telnet Services and Protocol

Summary

Activities and Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 4 OSI Transport Layer

Objectives

Key Terms

Roles of the Transport Layer

    Purpose of the Transport Layer

    Supporting Reliable Communication

    TCP and UDP

    Port Addressing

    Segmentation and Reassembly: Divide and Conquer

TCP: Communicating with Reliability

    Making Conversations Reliable

    TCP Server Processes

    TCP Connection Establishment and Termination

    TCP Three-Way Handshake

    TCP Session Termination

    TCP Acknowledgment with Windowing

    TCP Retransmission

    TCP Congestion Control: Minimizing Segment Loss

UDP: Communicating with Low Overhead

    UDP: Low Overhead Versus Reliability

    UDP Datagram Reassembly

    UDP Server Processes and Requests

    UDP Client Processes

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 5 OSI Network Layer

Objectives

Key Terms

IPv4

    Network Layer: Communication from Host to Host

    IPv4: Example Network Layer Protocol

    IPv4 Packet: Packaging the Transport Layer PDU

    IPv4 Packet Header

Networks: Dividing Hosts into Groups

    Creating Common Groups

    Why Separate Hosts into Networks?

    Dividing Networks from Networks

Routing: How Data Packets Are Handled

    Device Parameters: Supporting Communication Outside the Network

    IP Packets: Carrying Data End to End

    Gateway: The Way Out of the Network

    Route: A Path to a Network

    Destination Network

    Next Hop: Where the Packet Goes Next

    Packet Forwarding: Moving the Packet Toward Its Destination

Routing Processes: How Routes Are Learned

    Static Routing

    Dynamic Routing

    Routing Protocols

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 6 Addressing the Network: IPv4

Objectives

Key Terms

IPv4 Addresses

    Anatomy of an IPv4 Address

    Binary-to-Decimal Conversion

    Decimal-to-Binary Conversions

    Addressing Types of Communication: Unicast, Broadcast, Multicast

IPv4 Addresses for Different Purposes

    Types of Addresses in an IPv4 Network Range

    Subnet Mask: Defining the Network and Host Portions of the Address

    Public and Private Addresses

    Special Unicast IPv4 Addresses

    Legacy IPv4 Addressing

Assigning Addresses

    Planning to Address the Network

    Static or Dynamic Addressing for End-User Devices

    Selecting Device Addresses

    Internet Assigned Numbers Authority (IANA)

    ISPs

Calculating Addresses

    Is the Host on My Network?

    Calculating Network, Hosts, and Broadcast Addresses

    Basic Subnetting

    Subnetting: Dividing Networks into Right Sizes

    Subnetting a Subnet

Testing the Network Layer

    Ping 127.0.0.1: Testing the Local Stack

    Ping Gateway: Testing Connectivity to the Local LAN

    Ping Remote Host: Testing Connectivity to Remote LAN

    Traceroute (tracert): Testing the Path

    ICMPv4: The Protocol Supporting Testing and Messaging

Overview of IPv6

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 7 OSI Data Link Layer

Objectives

Key Terms

Data Link Layer: Accessing the Media

    Supporting and Connecting to Upper-Layer Services

    Controlling Transfer Across Local Media

    Creating a Frame

    Connecting Upper-Layer Services to the Media

    Standards

MAC Techniques: Placing Data on the Media

    MAC for Shared Media

    MAC for Nonshared Media

    Logical Topology Versus Physical Topology

MAC: Addressing and Framing Data

    Data Link Layer Protocols: The Frame

    Framing: Role of the Header

    Addressing: Where the Frame Goes

    Framing: Role of the Trailer

    Sample Data Link Layer Frames

Putting It All Together: Following Data Through an Internetwork

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 8 OSI Physical Layer

Objectives

Key Terms

Physical Layer: Communication Signals

    Purpose of the Physical Layer

    Physical Layer Operation

    Physical Layer Standards

    Physical Layer Fundamental Principles

Physical Signaling and Encoding: Representing Bits

    Signaling Bits for the Media

    Encoding: Grouping Bits

    Data-Carrying Capacity

Physical Media: Connecting Communication

    Types of Physical Media

    Copper Media

    Media Connectors

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 9 Ethernet

Objectives

Key Terms

Overview of Ethernet

    Ethernet: Standards and Implementation

    Ethernet: Layer 1 and Layer 2

    Logical Link Control: Connecting to the Upper Layers

    MAC: Getting Data to the Media

    Physical Implementations of Ethernet

Ethernet: Communication Through the LAN

    Historic Ethernet

    Legacy Ethernet

    Current Ethernet

    Moving to 1 Gbps and Beyond

Ethernet Frame

    Frame: Encapsulating the Packet

    Ethernet MAC Address

    Hexadecimal Numbering and Addressing

    Another Layer of Addressing

    Ethernet Unicast, Multicast, and Broadcast

Ethernet MAC

    MAC in Ethernet

    CSMA/CD: The Process

    Ethernet Timing

    Interframe Spacing and Backoff

Ethernet Physical Layer

    10- and 100-Mbps Ethernet

    1000-Mbps Ethernet

    Ethernet: Future Options

Hubs and Switches

    Legacy Ethernet: Using Hubs

    Ethernet: Using Switches

    Switches: Selective Forwarding

Address Resolution Protocol (ARP)

    Resolving IPv4 Addresses to MAC Addresses

    Maintaining a Cache of Mappings

    ARP Broadcast Issues

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 10 Planning and Cabling Networks

Objectives

Key Terms

LANs: Making the Physical Connection

    Choosing the Appropriate LAN Device

    Device Selection Factors

Device Interconnections

    LAN and WAN: Getting Connected

    Making LAN Connections

    Making WAN Connections

Developing an Addressing Scheme

    How Many Hosts in the Network?

    How Many Networks?

    Designing the Address Standard for Your Internetwork

Calculating the Subnets

    Calculating Addresses: Case 1

    Calculating Addresses: Case 2

Device Interconnections

    Device Interfaces

    Making the Device Management Connection

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Chapter 11 Configuring and Testing Your Network

Objectives

Key Terms

Configuring Cisco Devices: IOS Basics

    Cisco IOS

    Access Methods

    Configuration Files

    Introducing Cisco IOS Modes

    Basic IOS Command Structure

    Using CLI Help

    IOS Examination Commands

    IOS Configuration Modes

Applying a Basic Configuration Using Cisco IOS

    Naming Devices

    Limiting Device Access: Configuring Passwords and Banners

    Managing Configuration Files

    Configuring Interfaces

Verifying Connectivity

    Test the Stack

    Testing the Interface

    Testing the Local Network

    Testing Gateway and Remote Connectivity

    Tracing and Interpreting Trace Results

Monitoring and Documenting Networks

    Basic Network Baselines

    Capturing and Interpreting Trace Information

    Learning About the Nodes on the Network

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Appendix Check Your Understanding and Challenge Questions Answer Key

Glossary

Cisco Press Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from Cisco Press and its family of brands. I can unsubscribe at any time.

Overview

Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about Cisco Press products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites; develop new products and services; conduct educational research; and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@ciscopress.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security

Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children

This site is not directed to children under the age of 13.

Marketing

Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.

Choice/Opt-out

Users can always make an informed choice as to whether they should proceed with certain services offered by Cisco Press. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.ciscopress.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links

This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020


Other Things You Might Like

CCNA 200-301 Official Cert Guide Library
CCNA 200-301 Official Cert Guide Library, 2nd Edition
By Wendell Odom, David Hucaby, Jason Gooley
Book   $63.99
31 Days Before your Cisco Certified Support Technician (CCST) Networking 100-150 Exam: A Day-By-Day Review Guide for the CCST-Networking Certification Exam
31 Days Before your Cisco Certified Support Technician (CCST) Networking 100-150 Exam: A Day-By-Day Review Guide for the CCST-Networking Certification Exam
By Allan Johnson
Book   $31.99
Networking Essentials Companion Guide v3: Cisco Certified Support Technician (CCST) Networking 100-150
Networking Essentials Companion Guide v3: Cisco Certified Support Technician (CCST) Networking 100-150, 2nd Edition
By Cisco Networking Academy
eBook   $77.39