CCNA学习指南Cisco Certified Network Associate(Exam 640-801)(英文版附光盘) 下载 pdf 百度网盘 epub 免费 2025 电子版 mobi 在线

本书以*版的CCNA认证考试(Exam 640-801)为目标，内容不但覆盖核心考试640-801的所有考试要点，而且还涵盖了CCNA INTRO(Exam 640-821)和ICND(Exam 640-811)的所有考试要点，并且尽可能详细地介绍了CCNA应试者所应该掌握的所有技能。

本书在介绍考试要点时针对每个考试目标，使用了大量的插图、表格、试验、测试等，使读者在牢固掌握知识点的同时，轻松地获得丰富的实践经验。

本书由具有丰富CCNA考试经验的专家编写，是参加CCNA考试人员的考试教材。

1 Networking Technologies

Networks

Components

Locations

Topologies

Physical Versus Logical Topologies

Meshing

Network Types

Local Area Networks

Wide Area Networks

Metropolitan Area Networks

Storage Area Networks

Content Networks

Intranets, Extranets, and Internets

Virtual Private Networks

Two-Minute Drill

Self Test

Self Test Answers

2 Networking Concepts

OSI Reference Model

Advantages

Layer Definitions

Devices

Data Link Layer

Data Link Layer Addressing

Ethernet

Data Link Devices: Bridges

Data Link Devices: Switches

Network Layer

Layer-3 Addressing

Routing Tables

Advantages of Routers

Transport Layer

Reliable Connections

Unreliable Connections

Connection Multiplexing

Flow Control

Transferring Information Between Computers

Going Down the Protocol Stack

Going Up the Protocol Stack

Two Segment Example

Hierarchical Network Model

Core. Layer

Distribution Layer

Access Layer

Connections

Two-Minute Drill

Self Test

Self Test Answers

3 IP Addressing

TCP/IP Protocol Stack

Application Layer

Transport Layer

Internet Layer

IP Addressing Introduction

Bit Values

Hexadecimal Conversion

Classes of Addresses

IP Address Components

Subnetting

Subnet Masks

Subnet Masks Values

Planning IP Addressing

Step 1: Figure Out Network and Host Requirements

Step 2: Satisfy Host and Network Requirements

Step 3: Figure Out the Subnet Mask

Step 4: Figure Out the Network Addresses

Step 5: Figure Out the Directed Broadcast Addresses

Step 6; Figure Out the Host Addresses

Exercise 3-1: Planning IP Addressing Exercise

Figuring Out IP Address Components

Six Step Approach For Figuring Out IP Address Components

Example #1 For Figuring Out IP Address Components

Example #2 For Figuring Out IP Address Components

Example #3 For Figuring Out IP Address Components

Exercise 3-2: Determining Network, Directed Broadcast,

and Host Components

Two-Minute Drill

Self Test

Self Test Answers

4 Preparing Network Connections

Cisco's Networking Products

Hubs

Switches

Routers

Chassis Information

Catalyst 1.900 Switch

Catalyst 2950 Switch

Routers

Connections

Console Port

Hardware Interfaces

Cabling

Ethernet Cabling

WAN Cabling

Two-Minute Drill

Self Test

Self Test Answers

5 Basic Switch and Router Configuration

IOS Introduction

Device Startup

Accessing the Command-Line Interface (CLI)

EXEC Modes

IOS Basics

Command Abbreviation and Completion

Context-Sensitive Help

Command Output

Entering Commands

IOS Feature Example

Exercise 5-1: Using IOS Features

Basic Switch Configuration

Accessing the CLI

EXEC Modes

Accessing Configuration Mode

Configuration Files

Verifying Switch Operation

Exercise 5-2: Configuring the 1900 Switch

Exercise 5-3: Configuring the 2950 Switches

Basic Router Configuration

Setup Mode

Configuration Mode

Verifying a Router's Operation

Router Configuration Files

Exercise 5-4: Using the CLI to Set Up a Basic

Router Configuration

Two-Minute Drill

Self Test

Self Test Answers

6 Managing Your Network Device

Router Hardware Components

Read-Only Memory (ROM)

Other Components

Router Bootup Process

Bootstrap Program

Configuration Register

Router Configuration Files

Saving Configuration Files

Restoring Configuration Files

Creating and Deleting Configuration Files

Configuration File Nomenclature

Review of Configuration Files

Exercise 6-1: Manipulating Your Router's

Configuration Files

Changes in Your Network

Adding Devices

Changing Devices

Router IOS Image Files

Naming Conventions for IOS Images

Before Upgrading the IOS Image

Backing Up an IOS Image

Loading an IOS Image

IOS Troubleshooting

Cisco Discovery Protocol (CDP)

Layer-3 Connectivity Testing

Layer-7 Connectivity Testing

Debug Overview

Exercise 6-2: Using the Router's Troubleshooting Tools

Two-Minute Drill

Self Test

Self Test Answers

7 Bridging and Switching

Bridges and Switches

Bridging vs. Switching

Methods of Switching

Switch Connections

Functions of Bridging and Switching

Learning Function

Forwarding Function

Loops

The Spanning Tree Protocol

Bridge Protocol Data Units

Root Bridge

Root Port

Designated Port

Port States

Layer-2 Convergence

Rapid Spanning Tree Protocol

Simple STP Example

1900 and 2950 Configuration

Default Configuration

Quick Review

Basic Interface Configuration

Exercise 7-1: Basic Interface Configuration

MAC Addresses and Port Security

Exercise 7-2: CAM Tables

Backing Up and Restoring Your 1900's Configuration

Two-Minute Drill

Self Test

Self Test Answers

8 Virtual LANs

Virtual LAN Overview

Subnets and VLANs

Scalability

VLAN Membership

VLAN Connections

Access-Link Connections

Trunk Connections

Per-VLAN STP

VLAN Trunk Protocol

VTP Modes

VTP Messages

VTP Pruning

1900 and 2950 VLAN Configuration

Configuring VTP

Configuring Trunks

Exercise 8-1: Configuring Trunks on Your Switches

Creating VLANs

Basic Troubleshooting of VLANs and Trunks

Exercise 8-2: Configuring VLANs on Your Switches

Two-Minute Drill

Self Test

Self Test Answers

9 Routing Introduction

Types of Routes

Autonomous Systems

Administrative Distance

Static Routes

Static Route Configuration

Default Route Configuration

Default Routes and Distance Vector Protocols

Verifying Static Route Configuration

Exercise 9-1: Static Route Configuration

Router-on-a-Stick

Subinterface Configuration

Interface Encapsulation

Example Configuration

Dynamic Routing Protocols

Routing Metrics

Distance Vector Protocols

Link State Protocols

Hybrid Protocols

Problems with Distance Vector Protocols

Problem: Convergence

Problem: Routing Loops

Exercise 9-2: Basic IP and Routing Troubleshooting

Two-Minute Drill

Self Test

Self Test Answers

10 Configuring Distance Vector Protocols

IP Routing Protocol Basics

The router Command

The network Command

IP RIP

Characteristics of RIPv1 and RIPv2

Configuring IP RIP

Troubleshooting IP RIP

Exercise 10-1: Configuring RIP

Exercise 10-2: Basic RIP Troubleshooting

IP IGRP

Configuring IP IGRP

Troubleshooting IP IGRP

Two-Minute Drill

Self Test

Self Test Answers

11 Configuring Advanced Routing Protocols

OSPF

Characteristics of OSPF

Configuring OSPF

Troubleshooting OSPF

Exercise 11-1: Configuring OSPF

Exercise 11-2: Troubleshooting OSPF

EIGRP

Characteristics of EIGRP

Configuring EIGRP

Troubleshooting EIGRP

Two-Minute Drill

SelfTest

Self Test Answers

12 Advanced IP Addressing

VLSM

Features of VLSM

Addressing with VLSM

VLSM Example 1

VLSM Example 2

Route Summarization

Advantages of Summarization

Classless Interdomain Routing

Hierarchical Addressing

Routing and Subnet Masks

The Routing Table

Performing Summarization

Exercise 12-1: Performing Route Summarization

Two-Minute Drill

SelfTest

Self Test Answers

13 IP Access Lists

ACL Overview

Definition

Types

Processing

Basic ACL Configuration

Activating an ACL

Editing Entries

Wildcard Masks

Special Wildcard-Masks

Examples

Types of ACLs

Standard Numbered ACLs

Exercise 13-1: Configunng Standard Numbered ACLs

Extended Numbered ACLs

Named ACLs

Access List Verification

Placement of ACLs

Standard ACLs

Extended ACLs

Two-Minute Drill

SelfTest

Self Test Answers

14 Advanced IP Features

Address Translation Overview

Running Out of Addresses

Types of Address Translation

Advantages of Address Translation

Disadvantages of Address Translation

Address Translation Configuration

NAT Configuration

PAT Configuration

Load Distribution Configuration

Address Translation Verification

Exercise 14-1: Configuring Address Translation

Dynamic Host Configuration Protocol

DHCP Devices and Operation

DHCP Server Configuration

DHCP Client Configuration

DHCP Verification

Two-Minute Drill

Self Test

Self Test Answers

15 WAN Introduction

Wide Area Networking Overview

Equipment and Components

Connection Types

WAN Interfaces on Cisco Routers

Encapsulation Methods

HDLC

Frame Type

Configuring HDLC

PPP

PPP Components

Configuring PPP

Troubleshooting PPP

PPP Authentication

Exercise 15-1: Configuring PPP

Exercise 15-2: Basic PPP Troubleshooting

Two-Minute Drill

Self Test

Self Test Answers

16 Frame Relay

Virtual Circuits (VCs)

Full-Meshed Design

Advantages of VCs

Types of VCs

Supported Serial Connections

Terminology and Operation

LMI

DLCIs

VC Circuit Data Rates

Congestion Control

Frame Relay Configuration

LMI Configuration

Troubleshooting LMI

PVC Configuration

Exercise 16-1: Configuring Frame Relay

Nonbroadcast Multiaccess

Topology Types

Split Horizon Issues

Solutions to Split Horizon Problems

Subinterfaces

Exercise 16-2: Configuring Frame Relay with Subinterfaces

Two-Minute Drill

Self Test

Self Test Answers

17 ISDN

ISDN Introduction

ISDN Connections

ISDN Standards

Functional Groups and Reference Points

ISDN Interface Configuration

Switch Types

ISDN SPIDs

PRI Commands

Verifying Connections

Exercise 17-1: Configuring ISDN Switch Connectivity

Legacy Dial-on-Demand Routing

DDR Process

Legacy DDR Configuration

Legacy DDR Verification

Using debug for Troubleshooting

Troubleshooting Steps

Dialer Profiles and DDR

Dialer Profile Components

Configuring Dialer Profiles

Dialer Profile Example

Two-Minute Drill

Self Test

Self Test Answers

A About the CD

System Requirements

Electronic Book

CertCams

Flashcard Software

Boson Utilities and Boson Test Demos

B Exam Readiness Checklist

Glossary

Index

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