Cisco Networking Academy Program CCNA 3.0 Training Edition

1269FMf1.book Page xi Tuesday, April 15, 2003 10:40 AMxiLab 11-2: Configuring PATObjective313313Background / Preparation 314Configuration Reference Sheet for This Lab316Lab 11-3: Configuring Static NAT Addresses318Objectives318Background / Preparation318Lab 11-4: Verifying NAT and PAT ConfigurationObjectives322Background / Preparation 322Configuration Reference Sheet for This LabLab 11-5: Troubleshooting NAT and PATObjectives327327Background / Preparation 328Configuration Reference Sheet for This LabLab 11-6: Configuring DHCPObjective332332Background / Preparation332Lab 11-7: Configuring DHCP RelayObjectives325336Background / Preparation336335331322

1269FMf1.book Page i Tuesday, April 15, 2003 10:40 AMCisco Networking Academy ProgramCCNA 3.0 Training EditionCisco Press201 West 103rd StreetIndianapolis, Indiana 46290 USAwww.ciscopress.com

04.03.1054b CP Family Overview4/15/0311:31 AMPage 13Cisco Press Product Family OverviewCisco Press works in conjunction with the Cisco Systems Worldwide Education Group to developthe only official books and resources for the Cisco Networking Academy Program. There are threetypes of core Networking Academy textbooks that Cisco Press publishes—Companion Guides, LabCompanions, and Engineering Journals and Workbooks. These materials enhance your students’learning experiences and lend support to you and the web-based curriculum developed for theCisco Networking Academy Program.Companion GuidesThe Companion Guide textbook serves as the main volume for thecourse. These comprehensive texts contain key objectives,Skillbuilder activities, figures and tables, margin notes, chaptersummaries, and “Check Your Understanding” review questions.CD-ROMs that contain additional enrichment tools such as practiceexam questions within a customizable test engine, e-LabActivities, PhotoZooms, and instructional videos are included withthe hardbound textbook. Often Companion Guides also includeadditional chapters and exercises that reach beyond the onlinecurriculum.Lab CompanionsPractice the concepts presented in the correlating CompanionGuide. The Lab Companion serves as a tool for hands-on practicewithin the lab environment and can used for homework and tests.Most Lab Companions contain bonus labs or additional questionsfor further study.Engineering Journal and WorkbooksHave your students begin the best-practice method of keeping anengineering journal for the workplace with this resource tool thatincludes training exercises to reinforce classroom learning. Eachchapter includes review questions and focus questions to preparestudents for the corresponding course exam.

04.03.1054dCG Features.fs4/15/0311:33 AMPage 14Cisco Press Companion Guide FeaturesInterior DesignInterior design features of Cisco PressCompanion Guides support your teaching efforts and present components thatare distinctive, readily identified, andfacilitate better comprehension of coursecontent.110Chapter 2: How Computers WorkDRAM—Inexpensive and somewhat slow, and requires an uninterrupted powersupply to maintain its data. When the power is turned off, the data is lost.TEST TIPSometimes, it is necessary to adjust the system BIOS (CMOS) toenable the use of parity RAM or nonparityRAM, depending onthe type of motherboard. The relevantinformation is foundin the system’smanual.Margin NotesImportant and interesting concepts are highlighted using various types of margin notes:RAM can be installed on the motherboard, either as a permanent fixture or in the formof small chips, referred to as SIMMs (single inline memory modules) or DIMMs (dualinline memory modules). SIMMs and DIMMs are removable cards that can be replacedwith larger or smaller increments of memory. Although having more memory installedin your computer is a good thing, most system boards have limitations on the amountand type of RAM that can be added or supported. Some systems might require thatonly SIMMs be used, while others might require that SIMMs be installed in matchedsets of two or four modules at a time. Additionally, some systems use only RAM withparity (built-in error checking) while others use nonparity RAM (having no errorchecking capability).Identifying SIMMs and DIMMsA SIMM plugs into the motherboard with a 72-pin or 30-pin connector. The pins connect to the system bus, creating an electronic path through which memory data canflow to and from other system components. Two 72-pin SIMMs can be installed in acomputer that supports 64-bit data flow. With a SIMM board, the pins on oppositesides of the module board are connected to each other, forming a single row of contacts, as shown in Figure 2-10. Test tips identify facts students need toknow for certification exam successFigure 2-10 A 72-Pin SIMM Notes mark ideas and concepts studentswill find interesting Cautions instruct students when to becareful or risk damage to equipment Warnings indicate dangersand hazards students must know for theirpersonal safetyBook FeaturesIn addition to distinctive design elements, Cisco Pressbuilds the following book features into everyCompanion Guide:NOTESIMMs are availablein 30-pin and 72-pinversions, whileDIMMs take the formof larger, 168-pincircuit boards.A DIMM plugs into the system’s memory bank using a 168-pin connector. The pinsestablish a connection with the system bus, creating an electronic path through whichdata can flow between the memory chip and other system components. A single 168pin DIMM supports 64-bit (nonparity) and 72-bit (parity) data flow. This configuration is now being used in the latest generation of 64-bit systems. Recall that parityrefers to error-checking capability built into the RAM chip to ensure data integrity.An important feature is that the pins on a DIMM board are not connected side to side(as with SIMMs); the pins form two sets of contacts, as shown in Figure 2-11.Figures and TablesFigures and tables are clearly rendered and labeled,and are plainly positioned near corresponding text,making it easy for students to refer to them whilestudying.

04.03.1054dCG Features.fs4/15/0311:33 AMPage 25108Chapter 2: How Computers WorkLab Activity 2.3.6 Identifying Computer Expansion SlotsIdentify safety issues, specifications, and components relating to expansionslots. You should also be able to list the advantages and disadvantages of eachexpansion slot.Worksheet 2.3.5 Expansion SlotsThis worksheet reviews expansion slots, including the definition and the different types utilized.Bus TypesAll the basic components of the computer are connected by communication paths thatare referred to as buses. The system bus is a parallel collection of conductors that carrydata and control signals from one component to the other. Recall that the conductorsin modern computers are actually metallic traces on the circuit board.The major system bus types, which can be identified based on the type of informationthey carry, are as follows:Skill BuildersMake a connection between theory and practicewith the aid of skill builders. Clearly marked byicons, skill builders refer to worksheets and labactivities from the corresponding Lab Companionthat reinforce hands-on training. References to thecompanion CD-ROM for PhotoZooms of actualequipment and instructional videos on complextopics are also included within chapters.Address bus—This is a unidirectional pathway, which means that informationcan only flow one way. The function of the address bus is to carry addresses generated by the CPU to the memory and I/O elements of the computer. The numberof conductors in the bus determines the size of the address bus; this, in turn,determines the number of memory locations and I/O elements that the microprocessor can address.Data bus—Unlike the address bus, the data bus is a bidirectional pathway fordata flow, which means that information can flow in two directions. Data canflow along the data bus from the CPU to memory during a write operation, anddata can move from the computer memory to the CPU during a read operation.However, should two devices attempt to use the bus at the same time, data errorsoccur. Any device connected to the data bus must have the capability to temporarily put its output on hold (a floating state) when it is not involved in an operation with the processor. The data bus size, measured in bits, represents thecomputer’s word size. Generally, the larger the bus size, the faster your system.Common data bus sizes are 8 bits or 16 bits (older systems) and 32 bits (newsystems). Currently under development are 64-bit data bus systems.Control bus—Carries the control and timing signals needed to coordinate theactivities of the entire computer. Control bus signals, unlike information carriedby the data and address buses, are not necessarily related to each other. Some areObjectivesEach chapter starts with a succinct list of objectives thatshould be mastered by the end of the chapter.Chapter SummariesAppearing at the end of each chapter, chapter summariesprovide topic synopses and serve as study aids.Key TermsKey terms are clearly introduced within text, thenlisted at the end of each chapter for quick review,and compiled within a glossary of terms for easyreference.“Check Your Understanding” Review QuestionsReinforce concepts and assess knowledge before movingon to subsequent chapters with these review questionspresented at the end of each chapter.Key Elements of CCNA 3.0 Texts from Cisco PressCompanion Guides include expanded coverage on complex CCNA topics exclusive content that extends the curriculum strong textbook pedagogy and learning aids clear references to practical activities withinLab CompanionsExpanded CD-ROMs within Companion Guidesincorporate more CCNA preparation questionsLab Companions contain bonus labs on complex CCNA topics a new reduced priceEngineering Journal and Workbooks have concept and focus questions vocabulary exercisesOverall, CCNA 3.0 textbooks are mapped fully to revised 3.0 curriculum new e-Lab Activities written by the curriculum developers additional tools such as the only textbooks approved by Cisco Systems–PhotoZooms–instructional videos

04.03.1054c CP IRC Info4/15/0311:32 AMPage 16Instructor Resource Center (IRC) InformationVisit the Cisco Press Networking Academy Instructor Resource Center at www.ciscopress.com/irc forproduct information, release news, and details on how to sample the classroom textbook companions.Networking Academy Newsletter Registration InformationWhile visiting the Instructor Resource Center, sign up for the Cisco Press Networking Academy e-mailnewsletter. This monthly newsletter is filled with upcoming release information and other importantnew for Networking Academy instructors. Click “newsletter” to learn more.How to Request a Cisco Press Review CopyU.S. Review Copy RequestsOption I—Request a review copyYou may request a review copy of the current andupcoming Networking Academy products by visiting www.ciscopress. com/networkingacademyand following these easy steps:Step 1 Browse the Academy catalog and selectthe book you would like to review.Step 2 Click on “Request a Review Copy”beneath the “More Information” bar.Step 3 Select your customer type and followthe instructions given. Your Prentice Hallrepresentative will be automaticallynotified to follow up and sample.Option II—Contact your Prentice HallRepresentativeCisco Press is a division of Pearson Educationand is represented in the U.S. by the PrenticeHall Education sales force. We have specializedour sales departments to provide the best serviceto you.To locate your U.S. Prentice Hall representativeInstructors in high schools and vocational/technicalschools may reach their sales and service representatives by calling (866) 466-2539 (toll free).Instructors in two-year colleges, communitycolleges, and four-year universities may contacttheir Prentice Hall sales and service representativeby calling (800) 526-0485 (toll free) or by visitingwww.prenhall.com/replocator to locate theirrepresentative.International review copy requestsCisco Press is represented internationallythrough a global network of Pearson companiesand partners. Visit www.ciscopress.com/irc andclick on “Review Copies” for instructions on howto request a deskcopy.How to Order Cisco Press ResourcesU.S. OrdersTo place a book order, call the Pearson Customer Service line at (800) 922-0579 with your PO numberand the ISBN(s) of the title(s) you would like to order. If you do not already have an account withPearson, your sales representative will be located and an account will be established. You may alsofax your order to (800) 445-6991.International OrdersPlease visit www.ciscopress.com/international for a complete listing of Pearson contacts for CiscoNetworking Academy Program orders outside the United States.Use the order form on the following page to help prepare your class adoption requestfor your school bookstore or school administrator.

04.03.1054a Training Ed4/15/0311:30 AMPage 1Cisco PressOrder FormUse this form as you prepare the CCNA order for your bookstore.School NameInstructorDepartmentCourse Name/Section NameExpected EnrollmentTitleISBNU.S. Net Price*Quantity0-13121-711-9 80.100-13113-557-0 65.250-13113-553-8 59.85CCNA 1 and 2—Third Editions from Cisco PressDiscounted Value Packs—Order and SaveCCNA 1 and 2 Complete PackCompanion Guide, Lab Companion,Engineering Journal and WorkbookCCNA 1 and 2 Lab PackCompanion Guide, Lab CompanionCCNA 1 and 2 Engineering PackCompanion Guide, Engineering Journaland WorkbookIndividual TitlesCCNA 1 and 2 Companion Guide, Third Edition1-58713-110-2 50.00CCNA 1 and 2 Lab Companion, Third Edition1-58713-111-0 22.46CCNA 1 and 2 Engineering Journaland Workbook, Third Edition1-58713-112-9 16.460-13121-712-7 80.100-13113-556-2 65.250-13113-554-6 59.85CCNA 3 and 4—Third Editions from Cisco PressDiscounted Value Packs—Order and SaveCCNA 3 and 4 Complete PackCompanion Guide, Lab Companion,Engineering Journal and WorkbookCCNA 3 and 4 Lab PackCompanion Guide, Lab CompanionCCNA 3 and 4 Engineering PackCompanion Guide, Engineering Journaland WorkbookIndividual TitlesCCNA 3 and 4 Companion Guide, Third Edition1-58713-113-7 50.00CCNA 3 and 4 Lab Companion, Third Edition1-58713-114-5 22.46CCNA 3 and 4 Engineering Journaland Workbook, Third Edition1-58713-115-3 16.46* For pricing outside of the U.S., please contact your local Pearson representative or sendan email to international@pearsoned.com.Cisco Press also has titles and discount value packages available for the other Cisco NetworkingAcademy Program courses. Ask your Prentice Hall representative for more details.7

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1269FMf1.book Page 9 Tuesday, April 15, 2003 10:40 AMBridging CCNA v2.0 and CCNA v3.0CCNA1Module 3—Networking MediaLesson 3.2: Optical MediaSee Chapter 3, “Networking Media,” of the Cisco Press Companion Guide, ThirdEdition, for more information.Optical fiber is the most frequently used medium for the longer, high-bandwidth, pointto-point transmissions required on LAN backbones and on WANs. Using optical media,light is used to transmit data over a thin glass fiber or plastic. Electrical signals cause afiber-optic transmitter to generate the light signals sent down the fiber. The receiver produces electrical signals at the far end of the fiber. However, there is no electricity in thefiber-optic cable itself. In fact, the glass used in fiber-optic cable is a very good electricalinsulator.Optical fiber is used in networks because of the following: Fiber is not susceptible to lightning, electromagnetic interference (EMI), or radiofrequency interference (RFI), and it does not generate EMI or RFI. Fiber has much greater bandwidth capabilities than other media. Fiber allows significantly greater transmission distances and excellent signal quality because very little signal attenuation occurs. Fiber is more secure than other media because it is difficult to tap into a fiber andeasy to detect someone placing a tap on the fiber. Current fiber transmitter and receiver technologies can be replaced by newer,faster devices as they are developed so that greater transmission speeds can beachieved over existing fiber links with no need to replace the fiber. Fiber costs less than copper for long-distance applications.

1269FMf1.book Page 10 Tuesday, April 15, 2003 10:40 AM10Bridging CCNA v2.0 and CCNA v3.0 The raw material that fiber is made from is sand, a very plentiful substance. With fiber, there are no grounding concerns as there are when signaling usingelectricity. Fiber is light in weight and easily installed. Fiber has better resistance to environmental factors, such as water, than copperwire. Lengths of fiber can easily be spliced together for very long cable runs.For these reasons, when very large numbers of bits need to be sent over distancesgreater than 100 meters, fiber-optic cable is often used.This section explains the basics of fiber-optic cable. You learn about how fibers canguide light for long distances. You also learn about the types of cable used, how fiber isinstalled, the type of connectors and equipment used with fiber-optic cable, and howfiber is tested to ensure that it functions properly.The light used in optical-fiber networks is one type of electromagnetic energy. Whenan electric charge moves back and forth, or accelerates, a type of energy called electromagnetic energy is produced. This energy in the form of waves can travel through avacuum, the air, and through some materials such as glass. An important property ofany energy wave is the wavelength, as shown in Figure 1.Figure 1 WavelengthsThe part of an optical fiber through which light rays travel is called the core of thefiber and is shown in Figure 2. Light rays can only enter the core if their angle is insidethe numeric aperture of the fiber. Likewise, after the rays have entered the core of thefiber, a light ray can follow only a limited number of optical paths through the fiber.These optical paths are called modes. If the diameter of the fiber core is large enoughso that there are many paths that light can take through the fiber, the fiber is calledmultimode fiber. Single-mode fiber has a much smaller core that only allows light raysto travel along one mode inside the fiber, as shown in Figure 3.

1269FMf1.book Page 11 Tuesday, April 15, 2003 10:40 AMCCNA1Figure 2 Fiber-Optic CableFigure 3 Multimode and Single-Mode FiberLesson 3.3: Wireless MediaSee Chapter 3, “Networking Media,” of the Cisco Press Companion Guide, ThirdEd

From CCNA 3 and 4 Lab Companion, Chapter 10, VLAN Trunking Protocol 247 Lab 10-1: Trunking with ISL 247 Objectives 248 Background / Preparation 248 Lab 10-2: Trunking with 802.1q 254 1269FMf1.book Page ix Tuesday, April 15, 2003 10:40 AM