9781587147142

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Cisco Press has the only study guides approved by Cisco for the new CCNA certification. The new edition of the best-selling two-book value-priced CCNA 200-301 Official Cert Guide Library includes updated content, new online practice exercises, more than 600 practice exam questions, and more than 2 hours of video training–PLUS the CCNA Network Simulator Lite Editions with 34 free Network Simulator labs (available via download on the companion web site).

CCNA 200-301 Official Cert Guide Library is a comprehensive review and practice package for the latest CCNA exam and is the only self-study resource approved by Cisco. The two books contained in this package, CCNA 200-301 Official Cert Guide, Volume 1 and CCNA 200-301 Official Cert Guide, Volume 2, present complete reviews and a more challenging and realistic preparation experience. The books have been fully updated to refresh the content for the latest CCNA exam topics and to enhance certain key topics that are critical for exam success.

Best-selling author Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.

Wendell Odom, CCIE No. 1624 (Emeritus), has been in the networking industry since 1981. He has worked as a network engineer, consultant, systems engineer, instructor, and course developer; he currently works writing and creating certification study tools. He is the author of all editions of the CCNA R&S and CCENT Cert Guides from Cisco Press. He has written books about topics from networking basics, certification guides throughout the years for CCENT, CCNA R&S, CCNA DC, CCNP ROUTE, CCNP QoS, and CCIE R&S. He helped develop the popular Pearson Network Simulator. He maintains study tools, links to his blogs, and other resources at www.certskills.com.

CCNA 200-301 Official Cert Guide, Volume 1

Introduction

Your Study Plan

Part I Introduction to Networking

Chapter 1 Introduction to TCP/IP Networking

“Do I Know This Already?” Quiz

Foundation Topics

Perspectives on Networking

TCP/IP Networking Model

History Leading to TCP/IP

Overview of the TCP/IP Networking Model

TCP/IP Application Layer

TCP/IP Transport Layer

TCP/IP Network Layer

TCP/IP Data-Link and Physical Layers

Data Encapsulation Terminology

Names of TCP/IP Messages

OSI Networking Model and Terminology

Chapter Review

Chapter 2 Fundamentals of Ethernet LANs

“Do I Know This Already?” Quiz

Foundation Topics

An Overview of LANs

Typical SOHO LANs

Typical Enterprise LANs

The Variety of Ethernet Physical Layer Standards

Consistent Behavior over All Links Using the Ethernet Data-Link Layer

Building Physical Ethernet LANs with UTP

Transmitting Data Using Twisted Pairs

Breaking Down a UTP Ethernet Link

UTP Cabling Pinouts for 10BASE-T and 100BASE-T

UTP Cabling Pinouts for 1000BASE-T

Building Physical Ethernet LANs with Fiber

Fiber Cabling Transmission Concepts

Using Fiber with Ethernet

Sending Data in Ethernet Networks

Ethernet Data-Link Protocols

Sending Ethernet Frames with Switches and Hubs

Chapter Review

Chapter 3 Fundamentals of WANs and IP Routing

“Do I Know This Already?” Quiz

Foundation Topics

Wide-Area Networks

Leased-Line WANs

Ethernet as a WAN Technology

IP Routing

Network Layer Routing (Forwarding) Logic

How Network Layer Routing Uses LANs and WANs

How IP Addressing Helps IP Routing

How IP Routing Protocols Help IP Routing

Other Network Layer Features

Using Names and the Domain Name System

The Address Resolution Protocol

ICMP Echo and the ping Command

Chapter Review

Part I Review

Part II Implementing Ethernet LANs

Chapter 4 Using the Command-Line Interface

“Do I Know This Already?” Quiz

Foundation Topics

Accessing the Cisco Catalyst Switch CLI

Cisco Catalyst Switches

Accessing the Cisco IOS CLI

CLI Help Features

The debug and show Commands

Configuring Cisco IOS Software

Configuration Submodes and Contexts

Storing Switch Configuration Files

Copying and Erasing Configuration Files

Chapter Review

Chapter 5 Analyzing Ethernet LAN Switching

“Do I Know This Already?” Quiz

Foundation Topics

LAN Switching Concepts

Overview of Switching Logic

Forwarding Known Unicast Frames

Learning MAC Addresses

Flooding Unknown Unicast and Broadcast Frames

Avoiding Loops Using Spanning Tree Protocol

LAN Switching Summary

Verifying and Analyzing Ethernet Switching

Demonstrating MAC Learning

Switch Interfaces

Finding Entries in the MAC Address Table

Managing the MAC Address Table (Aging, Clearing)

MAC Address Tables with Multiple Switches

Chapter Review

Chapter 6 Configuring Basic Switch Management

“Do I Know This Already?” Quiz

Foundation Topics

Securing the Switch CLI

Securing User Mode and Privileged Mode with Simple Passwords

Securing User Mode Access with Local Usernames and Passwords

Securing User Mode Access with External Authentication Servers

Securing Remote Access with Secure Shell

Enabling IPv4 for Remote Access

Host and Switch IP Settings

Configuring IPv4 on a Switch

Configuring a Switch to Learn Its IP Address with DHCP

Verifying IPv4 on a Switch

Miscellaneous Settings Useful in the Lab

History Buffer Commands

The logging synchronous, exec-timeout, and no ip domain-lookup Commands

Chapter Review

Chapter 7 Configuring and Verifying Switch Interfaces

“Do I Know This Already?” Quiz

Foundation Topics

Configuring Switch Interfaces

Configuring Speed, Duplex, and Description

Configuring Multiple Interfaces with the interface range Command

Administratively Controlling Interface State with shutdown

Removing Configuration with the no Command

Autonegotiation

Analyzing Switch Interface Status and Statistics

Interface Status Codes and Reasons for Nonworking States

Interface Speed and Duplex Issues

Common Layer 1 Problems on Working Interfaces

Chapter Review

Part II Review

Part III Implementing VLANs and STP

Chapter 8 Implementing Ethernet Virtual LANs

“Do I Know This Already?” Quiz

Foundation Topics

Virtual LAN Concepts

Creating Multiswitch VLANs Using Trunking

Forwarding Data Between VLANs

VLAN and VLAN Trunking Configuration and Verification

Creating VLANs and Assigning Access VLANs to an Interface

VLAN Trunking Protocol

VLAN Trunking Configuration

Implementing Interfaces Connected to Phones

Troubleshooting VLANs and VLAN Trunks

Access VLANs Undefined or Disabled

Mismatched Trunking Operational States

The Supported VLAN List on Trunks

Mismatched Native VLAN on a Trunk

Chapter Review

Chapter 9 Spanning Tree Protocol Concepts

“Do I Know This Already?” Quiz

Foundation Topics

STP and RSTP Basics

The Need for Spanning Tree

What Spanning Tree Does

How Spanning Tree Works

Configuring to Influence the STP Topology

Details Specific to STP (and Not RSTP)

STP Activity When the Network Remains Stable

STP Timers That Manage STP Convergence

Changing Interface States with STP

Rapid STP Concepts

Comparing STP and RSTP

RSTP and the Alternate (Root) Port Role

RSTP States and Processes

RSTP and the Backup (Designated) Port Role

RSTP Port Types

Optional STP Features

Chapter Review

Chapter 10 RSTP and EtherChannel Configuration

“Do I Know This Already?” Quiz

Foundation Topics

Understanding RSTP Through Configuration

The Need for Multiple Spanning Trees

STP Modes and Standards

The Bridge ID and System ID Extension

How Switches Use the Priority and System ID Extension

RSTP Methods to Support Multiple Spanning Trees

Other RSTP Configuration Options

Configuring Layer 2 EtherChannel

Configuring a Manual Layer 2 EtherChannel

Configuring Dynamic EtherChannels

Physical Interface Configuration and EtherChannels

EtherChannel Load Distribution

Chapter Review

Part III Review

Part IV IPv4 Addressing

Chapter 11 Perspectives on IPv4 Subnetting

“Do I Know This Already?” Quiz

Foundation Topics

Introduction to Subnetting

Subnetting Defined Through a Simple Example

Operational View Versus Design View of Subnetting

Analyze Subnetting and Addressing Needs

Rules About Which Hosts Are in Which Subnet

Determining the Number of Subnets

Determining the Number of Hosts per Subnet

One Size Subnet Fits All–Or Not

Make Design Choices

Choose a Classful Network

Choose the Mask

Build a List of All Subnets

Plan the Implementation

Assigning Subnets to Different Locations

Choose Static and Dynamic Ranges per Subnet

Chapter Review

Chapter 12 Analyzing Classful IPv4 Networks

“Do I Know This Already?” Quiz

Foundation Topics

Classful Network Concepts

IPv4 Network Classes and Related Facts

Number of Hosts per Network

Deriving the Network ID and Related Numbers

Unusual Network IDs and Network Broadcast Addresses

Practice with Classful Networks

Practice Deriving Key Facts Based on an IP Address

Practice Remembering the Details of Address Classes

Chapter Review

Chapter 13 Analyzing Subnet Masks

“Do I Know This Already?” Quiz

Foundation Topics

Subnet Mask Conversion

Three Mask Formats

Converting Between Binary and Prefix Masks

Converting Between Binary and DDN Masks

Converting Between Prefix and DDN Masks

Practice Converting Subnet Masks

Identifying Subnet Design Choices Using Masks

Masks Divide the Subnet’s Addresses into Two Parts

Masks and Class Divide Addresses into Three Parts

Classless and Classful Addressing

Calculations Based on the IPv4 Address Format

Practice Analyzing Subnet Masks

Chapter Review

Chapter 14 Analyzing Existing Subnets

“Do I Know This Already?” Quiz

Foundation Topics

Defining a Subnet

An Example with Network 172.16.0.0 and Four Subnets

Subnet ID Concepts

Subnet Broadcast Address

Range of Usable Addresses

Analyzing Existing Subnets: Binary

Finding the Subnet ID: Binary

Finding the Subnet Broadcast Address: Binary

Binary Practice Problems

Shortcut for the Binary Process

Brief Note About Boolean Math

Finding the Range of Addresses

Analyzing Existing Subnets: Decimal

Analysis with Easy Masks

Predictability in the Interesting Octet

Finding the Subnet ID: Difficult Masks

Finding the Subnet Broadcast Address: Difficult Masks

Practice Analyzing Existing Subnets

A Choice: Memorize or Calculate

Chapter Review

Part IV Review

Part V IPv4 Routing

Chapter 15 Operating Cisco Routers

“Do I Know This Already?” Quiz

Foundation Topics

Installing Cisco Routers

Installing Enterprise Routers

Installing SOHO Routers

Enabling IPv4 Support on Cisco Router Interfaces

Accessing the Router CLI

Router Interfaces

Router Auxiliary Port

Chapter Review

Chapter 16 Configuring IPv4 Addresses and Static Routes

“Do I Know This Already?” Quiz

Foundation Topics

IP Routing

IPv4 Routing Process Reference

An Example of IP Routing

Configuring IP Addresses and Connected Routes

Connected Routes and the ip address Command

The ARP Table on a Cisco Router

Configuring Static Routes

Static Network Routes

Static Host Routes

Floating Static Routes

Static Default Routes

Troubleshooting Static Routes

IP Forwarding with the Longest Prefix Match

Using show ip route to Find the Best Route

Using show ip route address to Find the Best Route

Interpreting the IP Routing Table

Chapter Review

Chapter 17 IP Routing in the LAN

“Do I Know This Already?” Quiz

Foundation Topics

VLAN Routing with Router 802.1Q Trunks

Configuring ROAS

Verifying ROAS

Troubleshooting ROAS

VLAN Routing with Layer 3 Switch SVIs

Configuring Routing Using Switch SVIs

Verifying Routing with SVIs

Troubleshooting Routing with SVIs

VLAN Routing with Layer 3 Switch Routed Ports

Implementing Routed Interfaces on Switches

Implementing Layer 3 EtherChannels

Troubleshooting Layer 3 EtherChannels

Chapter Review

Chapter 18 Troubleshooting IPv4 Routing

“Do I Know This Already?” Quiz

Foundation Topics

Problem Isolation Using the ping Command

Ping Command Basics

Strategies and Results When Testing with the ping Command

Using Ping with Names and with IP Addresses

Problem Isolation Using the traceroute Command

traceroute Basics

Telnet and SSH

Common Reasons to Use the IOS Telnet and SSH Client

IOS Telnet and SSH Examples

Chapter Review

Part V Review

Part VI OSPF

Chapter 19 Understanding OSPF Concepts

“Do I Know This Already?” Quiz

Foundation Topics

Comparing Dynamic Routing Protocol Features

Routing Protocol Functions

Interior and Exterior Routing Protocols

Comparing IGPs

Administrative Distance

OSPF Concepts and Operation

OSPF Overview

Becoming OSPF Neighbors

Exchanging the LSDB Between Neighbors

Calculating the Best Routes with SPF

OSPF Areas and LSAs

OSPF Areas

How Areas Reduce SPF Calculation Time

Chapter Review

Chapter 20 Implementing OSPF

“Do I Know This Already?” Quiz

Foundation Topics

Implementing Single-Area OSPFv2

OSPF Single-Area Configuration

Wildcard Matching with the network Command

Verifying OSPF Operation

Verifying OSPF Configuration

Configuring the OSPF Router ID

Implementing Multiarea OSPF

Using OSPFv2 Interface Subcommands

OSPF Interface Configuration Example

Additional OSPFv2 Features

OSPF Passive Interfaces

OSPF Default Routes

OSPF Metrics (Cost)

OSPF Load Balancing

Chapter Review

Chapter 21 OSPF Network Types and Neighbors

“Do I Know This Already?” Quiz

Foundation Topics

OSPF Network Types

The OSPF Broadcast Network Type

The OSPF Point-to-Point Network Type

OSPF Neighbor Relationships

OSPF Neighbor Requirements

Issues That Prevent Neighbor Adjacencies

Issues That Allow Adjacencies but Prevent IP Routes

Chapter Review

Part VI Review

Part VII IP Version 6

Chapter 22 Fundamentals of IP Version 6

“Do I Know This Already?” Quiz

Foundation Topics

Introduction to IPv6

The Historical Reasons for IPv6

The IPv6 Protocols

IPv6 Routing

IPv6 Routing Protocols

IPv6 Addressing Formats and Conventions

Representing Full (Unabbreviated) IPv6 Addresses

Abbreviating and Expanding IPv6 Addresses

Representing the Prefix Length of an Address

Calculating the IPv6 Prefix (Subnet ID)

Finding the IPv6 Prefix

Working with More-Difficult IPv6 Prefix Lengths

Chapter Review

Chapter 23 IPv6 Addressing and Subnetting

“Do I Know This Already?” Quiz

Foundation Topics

Global Unicast Addressing Concepts

Public and Private IPv6 Addresses

The IPv6 Global Routing Prefix

Address Ranges for Global Unicast Addresses

IPv6 Subnetting Using Global Unicast Addresses

Assigning Addresses to Hosts in a Subnet

Unique Local Unicast Addresses

Subnetting with Unique Local IPv6 Addresses

The Need for Globally Unique Local Addresses

Chapter Review

Chapter 24 Implementing IPv6 Addressing on Routers

“Do I Know This Already?” Quiz

Foundation Topics

Implementing Unicast IPv6 Addresses on Routers

Static Unicast Address Configuration

Dynamic Unicast Address Configuration

Special Addresses Used by Routers

Link-Local Addresses

IPv6 Multicast Addresses

Miscellaneous IPv6 Addresses

Anycast Addresses

IPv6 Addressing Configuration Summary

Chapter Review

Chapter 25 Implementing IPv6 Routing

“Do I Know This Already?” Quiz

Foundation Topics

Connected and Local IPv6 Routes

Rules for Connected and Local Routes

Example of Connected IPv6 Routes

Examples of Local IPv6 Routes

Static IPv6 Routes

Static Routes Using the Outgoing Interface

Static Routes Using Next-Hop IPv6 Address

Static Default Routes

Static IPv6 Host Routes

Floating Static IPv6 Routes

Troubleshooting Static IPv6 Routes

The Neighbor Discovery Protocol

Discovering Neighbor Link Addresses with NDP NS and NA

Discovering Routers with NDP RS and RA

Using SLAAC with NDP RS and RA

Discovering Duplicate Addresses Using NDP NS and NA

NDP Summary

Chapter Review

Part VII Review

Part VIII Wireless LANs

Chapter 26 Fundamentals of Wireless Networks

“Do I Know This Already?” Quiz

Foundation Topics

Comparing Wired and Wireless Networks

Wireless LAN Topologies

Basic Service Set

Distribution System

Extended Service Set

Independent Basic Service Set

Other Wireless Topologies

Repeater

Workgroup Bridge

Outdoor Bridge

Mesh Network

RF Overview

Wireless Bands and Channels

APs and Wireless Standards

Chapter Review

Chapter 27 Analyzing Cisco Wireless Architectures

“Do I Know This Already?” Quiz

Foundation Topics

Autonomous AP Architecture

Cloud-based AP Architecture

Split-MAC Architectures

Comparing Wireless LAN Controller Deployments

Cisco AP Modes

Chapter Review

Chapter 28 Securing Wireless Networks

“Do I Know This Already?” Quiz

Foundation Topics

Anatomy of a Secure Connection

Authentication

Message Privacy

Message Integrity

Wireless Client Authentication Methods

Open Authentication

WEP

802.1x/EAP

Wireless Privacy and Integrity Methods

TKIP

CCMP

GCMP

WPA, WPA2, and WPA3

Chapter Review

Chapter 29 Building a Wireless LAN

“Do I Know This Already?” Quiz

Foundation Topics

Connecting a Cisco AP

Accessing a Cisco WLC

Connecting a Cisco WLC

Using WLC Ports

Using WLC Interfaces

Configuring a WLAN

Step 1. Configure a RADIUS Server

Step 2. Create a Dynamic Interface

Step 3. Create a New WLAN

Configuring WLAN Security

Configuring WLAN QoS

Configuring Advanced WLAN Settings

Finalizing WLAN Configuration

Chapter Review

Part VIII Review

Part IX Appendixes

Appendix A Numeric Reference Tables

Appendix B CCNA 200-301, Volume 1 Exam Updates

Appendix C Answers to the “Do I Know This Already?” Quizzes

Glossary

Online Appendixes

Appendix D Practice for Chapter 12: Analyzing Classful IPv4 Networks

Appendix E Practice for Chapter 13: Analyzing Subnet Masks

Appendix F Practice for Chapter 14: Analyzing Existing Subnets

Appendix G Practice for Chapter 22: Fundamentals of IP Version 6

Appendix H Practice for Chapter 24: Implementing IPv6 Addressing on Routers

Appendix I Study Planner

Appendix J Topics from Previous Editions

Appendix K Analyzing Ethernet LAN Designs

Appendix L Subnet Design

Appendix M Practice for Appendix L: Subnet Design

Appendix N Variable-Length Subnet Masks

Appendix O Spanning Tree Protocol Implementation

Appendix P LAN Troubleshooting

Appendix Q Troubleshooting IPv4 Routing Protocols

Appendix R Exam Topics Cross Reference

9780135792735 TOC 7/25/2019

CCNA 200-301 Official Cert Guide, Volume 2

Introduction xxvii

Part I IP Access Control Lists 3

Chapter 1 Introduction to TCP/IP Transport and Applications 4

“Do I Know This Already?” Quiz 4

Foundation Topics 6

TCP/IP Layer 4 Protocols: TCP and UDP 6

Transmission Control Protocol 7

User Datagram Protocol 16

TCP/IP Applications 16

Uniform Resource Identifiers 17

Finding the Web Server Using DNS 18

Transferring Files with HTTP 20

How the Receiving Host Identifies the Correct Receiving Application 21

Chapter Review 22

Chapter 2 Basic IPv4 Access Control Lists 24

“Do I Know This Already?” Quiz 24

Foundation Topics 26

IPv4 Access Control List Basics 26

ACL Location and Direction 26

Matching Packets 27

Taking Action When a Match Occurs 28

Types of IP ACLs 28

Standard Numbered IPv4 ACLs 29

List Logic with IP ACLs 29

Matching Logic and Command Syntax 31

Implementing Standard IP ACLs 34

Troubleshooting and Verification Tips 38

Practice Applying Standard IP ACLs 39

Practice Building access-list Commands 39

Reverse Engineering from ACL to Address Range 40

Chapter Review 41

Chapter 3 Advanced IPv4 Access Control Lists 44

“Do I Know This Already?” Quiz 44

Foundation Topics 46

Extended Numbered IP Access Control Lists 46

Matching the Protocol, Source IP, and Destination IP 46

Matching TCP and UDP Port Numbers 48

Extended IP ACL Configuration 51

Practice Building access-list Commands 54

Named ACLs and ACL Editing 54

Named IP Access Lists 54

Editing ACLs Using Sequence Numbers 56

Numbered ACL Configuration Versus Named ACL Configuration 58

ACL Implementation Considerations 59

Additional Reading on ACLs 60

Chapter Review 61

Part I Review 64

Part II Security Services 67

Chapter 4 Security Architectures 68

“Do I Know This Already?” Quiz 68

Foundation Topics 70

Security Terminology 70

Common Security Threats 72

Attacks That Spoof Addresses 72

Reconnaissance Attacks 77

Buffer Overflow Attacks 78

Malware 78

Human Vulnerabilities 79

Password Vulnerabilities 80

Controlling and Monitoring User Access 82

Developing a Security Program to Educate Users 83

Chapter Review 84

Chapter 5 Securing Network Devices 86

“Do I Know This Already?” Quiz 86

Foundation Topics 88

Securing IOS Passwords 88

Encrypting Older IOS Passwords with service password-encryption 89

Encoding the Enable Passwords with Hashes 90

Encoding the Passwords for Local Usernames 94

Controlling Password Attacks with ACLs 95

Firewalls and Intrusion Prevention Systems 95

Traditional Firewalls 96

Intrusion Prevention Systems (IPS) 99

Cisco Next-Generation Firewalls 100

Cisco Next-Generation IPS 102

Chapter Review 103

Chapter 6 Implementing Switch Port Security 106

“Do I Know This Already?” Quiz 106

Foundation Topics 108

Port Security Concepts and Configuration 108

Configuring Port Security 109

Verifying Port Security 112

Port Security MAC Addresses 113

Port Security Violation Modes 114

Port Security Shutdown Mode 115

Port Security Protect and Restrict Modes 117

Chapter Review 119

Chapter 7 Implementing DHCP 122

“Do I Know This Already?” Quiz 122

Foundation Topics 124

Dynamic Host Configuration Protocol 124

DHCP Concepts 125

Configuring DHCP Features on Routers and Switches 129

Identifying Host IPv4 Settings 133

Host Settings for IPv4 133

Host IP Settings on Windows 134

Host IP Settings on macOS 136

Host IP Settings on Linux 138

Chapter Review 140

Chapter 8 DHCP Snooping and ARP Inspection 144

“Do I Know This Already?” Quiz 144

Foundation Topics 146

DHCP Snooping 146

DHCP Snooping Concepts 146

DHCP Snooping Configuration 152

Dynamic ARP Inspection 156

DAI Concepts 156

Dynamic ARP Inspection Configuration 160

Chapter Review 166

Part II Review 168

Part III IP Services 171

Chapter 9 Device Management Protocols 172

“Do I Know This Already?” Quiz 172

Foundation Topics 174

System Message Logging (Syslog) 174

Sending Messages in Real Time to Current Users 174

Storing Log Messages for Later Review 175

Log Message Format 176

Log Message Severity Levels 177

Configuring and Verifying System Logging 178

The debug Command and Log Messages 180

Network Time Protocol (NTP) 181

Setting the Time and Timezone 182

Basic NTP Configuration 183

NTP Reference Clock and Stratum 185

Redundant NTP Configuration 186

NTP Using a Loopback Interface for Better Availability 188

Analyzing Topology Using CDP and LLDP 190

Examining Information Learned by CDP 190

Configuring and Verifying CDP 193

Examining Information Learned by LLDP 194

Configuring and Verifying LLDP 197

Chapter Review 199

Chapter 10 Network Address Translation 202

“Do I Know This Already?” Quiz 202

Foundation Topics 204

Perspectives on IPv4 Address Scalability 204

CIDR 205

Private Addressing 206

Network Address Translation Concepts 207

Static NAT 208

Dynamic NAT 210

Overloading NAT with Port Address Translation 211

NAT Configuration and Troubleshooting 213

Static NAT Configuration 213

Dynamic NAT Configuration 215

Dynamic NAT Verification 217

NAT Overload (PAT) Configuration 219

NAT Troubleshooting 222

Chapter Review 223

Chapter 11 Quality of Service (QoS) 226

“Do I Know This Already?” Quiz 226

Foundation Topics 228

Introduction to QoS 228

QoS: Managing Bandwidth, Delay, Jitter, and Loss 228

Types of Traffic 229

Voice and Video Applications 230

QoS as Mentioned in This Book 232

QoS on Switches and Routers 233

Classification and Marking 233

Classification Basics 233

Matching (Classification) Basics 234

Classification on Routers with ACLs and NBAR 235

Marking IP DSCP and Ethernet CoS 236

Defining Trust Boundaries 238

DiffServ Suggested Marking Values 239

Queuing 242

Round-Robin Scheduling (Prioritization) 243

Low Latency Queuing 243

A Prioritization Strategy for Data, Voice, and Video 245

Shaping and Policing 245

Policing 246

Shaping 248

Congestion Avoidance 250

TCP Windowing Basics 250

Congestion Avoidance Tools 251

Chapter Review 252

Chapter 12 Miscellaneous IP Services 254

“Do I Know This Already?” Quiz 254

Foundation Topics 256

First Hop Redundancy Protocol 256

The Need for Redundancy in Networks 257

The Need for a First Hop Redundancy Protocol 259

The Three Solutions for First-Hop Redundancy 260

HSRP Concepts 261

Simple Network Management Protocol 263

SNMP Variable Reading and Writing: SNMP Get and Set 264

SNMP Notifications: Traps and Informs 265

The Management Information Base 266

Securing SNMP 267

FTP and TFTP 268

Managing Cisco IOS Images with FTP/TFTP 268

The FTP and TFTP Protocols 275

TFTP Protocol Basics 279

Chapter Review 280

Part III Review 284

Part IV Network Architecture 287

Chapter 13 LAN Architecture 288

“Do I Know This Already?” Quiz 288

Foundation Topics 290

Analyzing Campus LAN Topologies 290

Two-Tier Campus Design (Collapsed Core) 290

Three-Tier Campus Design (Core) 293

Topology Design Terminology 295

Small Office/Home Office 295

Power over Ethernet (PoE) 297

PoE Basics 297

PoE Operation 298

PoE and LAN Design 299

Chapter Review 300

Chapter 14 WAN Architecture 302

“Do I Know This Already?” Quiz 302

Foundation Topics 304

Metro Ethernet 304

Metro Ethernet Physical Design and Topology 305

Ethernet WAN Services and Topologies 306

Layer 3 Design Using Metro Ethernet 309

Multiprotocol Label Switching (MPLS) 311

MPLS VPN Physical Design and Topology 313

MPLS and Quality of Service 314

Layer 3 with MPLS VPN 315

Internet VPNs 317

Internet Access 317

Internet VPN Fundamentals 321

VPN Comparisons 326

Chapter Review 326

Chapter 15 Cloud Architecture 328

“Do I Know This Already?” Quiz 328

Foundation Topics 330

Server Virtualization 330

Cisco Server Hardware 330

Server Virtualization Basics 331

Networking with Virtual Switches on a Virtualized Host 333

The Physical Data Center Network 334

Workflow with a Virtualized Data Center 335

Cloud Computing Services 336

Private Cloud (On-Premise) 337

Public Cloud 338

Cloud and the “As a Service” Model 339

WAN Traffic Paths to Reach Cloud Services 342

Enterprise WAN Connections to Public Cloud 342

A Scenario: Branch Offices and the Public Cloud 347

Chapter Review 350

Part IV Review 352

Part V Network Automation 355

Chapter 16 Introduction to Controller-Based Networking 356

“Do I Know This Already?” Quiz 357

Foundation Topics 358

SDN and Controller-Based Networks 358

The Data, Control, and Management Planes 358

Controllers and Software-Defined Architecture 362

Software Defined Architecture Summary 367

Examples of Network Programmability and SDN 367

OpenDaylight and OpenFlow 367

Cisco Application Centric Infrastructure (ACI) 369

Cisco APIC Enterprise Module 373

Summary of the SDN Examples 375

Comparing Traditional Versus Controller-Based Networks 375

How Automation Impacts Network Management 376

Comparing Traditional Networks with Controller-Based Networks 378

Chapter Review 379

Chapter 17 Cisco Software-Defined Access (SDA) 382

“Do I Know This Already?” Quiz 383

Foundation Topics 384

SDA Fabric, Underlay, and Overlay 384

The SDA Underlay 386

The SDA Overlay 390

DNA Center and SDA Operation 395

Cisco DNA Center 395

Cisco DNA Center and Scalable Groups 396

DNA Center as a Network Management Platform 400

DNA Center Similarities to Traditional Management 401

DNA Center Differences with Traditional Management 402

Chapter Review 403

Chapter 18 Understanding REST and JSON 406

“Do I Know This Already?” Quiz 406

Foundation Topics 408

REST-Based APIs 408

REST-Based (RESTful) APIs 408

Background: Data and Variables 410

REST APIs and HTTP 413

Example of REST API Call to DNA Center 417

Data Serialization and JSON 418

The Need for a Data Model with APIs 419

Data Serialization Languages 421

Interpreting JSON 423

Chapter Review 427

Chapter 19 Understanding Ansible, Puppet, and Chef 428

“Do I Know This Already?” Quiz 428

Foundation Topics 430

Device Configuration Challenges and Solutions 430

Configuration Drift 430

Centralized Configuration Files and Version Control 431

Configuration Monitoring and Enforcement 433

Configuration Provisioning 434

Ansible, Puppet, and Chef Basics 438

Ansible 438

Puppet 440

Chef 441

Summary of Configuration Management Tools 442

Chapter Review 442

Part V Review 444

Part VI Final Review 447

Chapter 20 Final Review 448

Advice About the Exam Event 448

Exam Event: Learn About Question Types 448

Exam Event: Think About Your Time Budget 450

Exam Event: A Sample Time-Check Method 451

Exam Event: One Week Away 451

Exam Event: 24 Hours Before the Exam 452

Exam Event: The Last 30 Minutes 452

Exam Event: Reserve the Hour After the Exam 453

Exam Review 454

Exam Review: Take Practice Exams 454

Exam Review: Find Knowledge Gaps 458

Exam Review: Practice Hands-On CLI Skills 460

Exam Review: Self-Assessment Pitfalls 462

Exam Review: Adjustments for Your Second Attempt 463

Exam Review: Other Study Tasks 464

Final Thoughts 464

Part VII Appendixes 467

Appendix A Numeric Reference Tables 469

Appendix B CCNA 200-301, Volume 2 Exam Updates 476

Appendix C Answers to the “Do I Know This Already?” Quizzes 478

Glossary 494

Online Appendixes

Appendix D Topics from Previous Editions

Appendix E Practice for Chapter 2: Basic IPv4 Access Control Lists

Appendix F Previous Edition ICND1 Chapter 35: Managing IOS Files

Appendix G Exam Topics Cross-Reference

Appendix H Study Planner

9781587147135 TOC 10/18/2019

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CCNA 200-301 Official Cert Guide Library

CCNA 200-301 Official Cert Guide Library

1587147149

Summary

Author Biography

Table of Contents

Supplemental Materials