Contents

Introduction

Day 31: Network Devices, Components, and Applications

CCENT 100-101 ICND1 Exam Topics

Key Points

Devices

Switches

Routers

Physical Layer

Network Media Forms and Standards

LAN Device Connection Guidelines

LANs and WANs

Networking Icons

Physical and Logical Topologies

Cisco Borderless Network

Hierarchy in a Borderless Network

Network Documentation

Classification of Network Applications

User Application Interaction

Common Network Applications

Growth of Network-Based Applications

Quality of Service

Increased Network Usage

The Impact of Voice and Video on the Network

Study Resources

Day 30: Networking Models and Data Flow

CCENT 100-101 ICND1 Exam Topics

Key Points

The OSI and TCP/IP Models

OSI Layers

TCP/IP Layers and Protocols

Protocol Data Units and Encapsulation

The TCP/IP Application Layer

The TCP/IP Transport Layer

TCP Header

Port Numbers

Error Recovery

Flow Control

Connection Establishment and Termination

UDP

The TCP/IP Internet Layer

The TCP/IP Network Access Layer

Data Encapsulation Summary

Study Resources

Day 29: Ethernet and Media Access Control

CCENT 100-101 ICND1 Exam Topics

Key Topics

Ethernet Overview

Legacy Ethernet Technologies

CSMA/CD

Legacy Ethernet Summary

Current Ethernet Technologies

UTP Cabling

Benefits of Using Switches

Ethernet Addressing

Ethernet Framing

The Role of the Physical Layer

Study Resources

Day 28: Switching Concepts and Operation

CCENT 100-101 ICND1 Exam Topics

Key Topics

Evolution to Switching

Switching Logic

Collision and Broadcast Domains

Frame Forwarding

Switch Forwarding Methods

Symmetric and Asymmetric Switching

Memory Buffering

Layer 2 and Layer 3 Switching

Accessing and Navigating the Cisco IOS

Connecting to Cisco Devices

CLI EXEC Sessions

Using the Help Facility

CLI Navigation and Editing Shortcuts

Command History

IOS Examination Commands

Subconfiguration Modes

Storing and Erasing Configuration Files

Study Resources

Day 27: Basic Switch Configuration

CCENT 100-101 ICND1 Exam Topics

Key Topics

Basic Switch Configuration Commands

Half-Duplex, Full-Duplex, and Port Speed

Automatic Medium-Dependent Interface Crossover (auto-MDIX)

Configuring SSH Access

Verifying Network Connectivity

Study Resources

Day 26: VLAN Concepts

CCENT 100-101 ICND1 Exam Topics

Key Points

VLAN Concepts

Traffic Types

Types of VLANs

Voice VLAN Example

Trunking VLANs

Dynamic Trunking Protocol

Study Resources

Day 25: VLAN and Trunking Configuration

CCENT 100-101 ICND1 Exam Topics

Key Points

Sample Topology

VLAN Configuration and Verification Commands

Configuring and Verifying Trunking

Study Resources

Day 24: The IPv4 Address

CCENT 100-101 ICND1 Exam Topics

Key Topics

IPv4 Addressing

Header Format

Classes of Addresses

Purpose of the Subnet Mask

Private and Public IP Addressing

Study Resources

Day 23: IPv4 Subnetting and VLSM

CCENT 100-101 ICND1 Exam Topics

Key Topics

Subnetting in Four Steps

Determine How Many Bits to Borrow

Determine the New Subnet Mask

Determine the Subnet Multiplier

List the Subnets, Host Ranges, and Broadcast Addresses

Subnetting Example 1

Subnetting Example 2

Subnetting Example 3

VLSM

Summarizing Subnet Addresses

Study Resources

Day 22: IPv6 Addressing Concepts

CCENT 100-101 ICND1 Exam Topics

Key Topics

Overview and Benefits of IPv6

The IPv6 Protocol

IPv6 Address Types

Unicast

Multicast

Anycast

Study Resources

Day 21: Implementing IPv6 Addressing

CCENT 100-101 ICND1 Exam Topics

Key Topics

Representing the IPv6 Address

Conventions for Writing IPv6 Addresses

Conventions for Writing IPv6 Prefixes

IPv6 Subnetting

Subnetting the Subnet ID

Subnetting into the Interface ID

EUI-64 Concept

Stateless Address Autoconfiguration

Migration to IPv6

Study Resources

Day 20: Basic Routing Concepts

CCENT 100-101 ICND1 Exam Topics

Key Topics

Packet Forwarding

Path Determination and Switching Function Example

Routing Methods

Classifying Dynamic Routing Protocols

IGP and EGP

Distance Vector Routing Protocols

Link-State Routing Protocols

Classful Routing Protocols

Classless Routing Protocols

Study Resources

Day 19: Dynamic Routing Protocols

CCENT 100-101 ICND1 Exam Topics

Key Topics

Dynamic Routing Metrics

Administrative Distance

IGP Comparison Summary

Routing Loop Prevention

Link-State Routing Protocol Features

Building the LSDB

Calculating the Dijkstra Algorithm

Convergence with Link-State Protocols

Study Resources

Day 18: Basic Router Configuration: IPv4

CCENT 100-101 ICND1 Exam Topics

Key Topic

Basic Router Configuration with IPv4

Study Resources

Day 17: Basic Router Configuration: IPv6

CCENT 100-101 ICND1 Exam Topics

Key Topic

Basic Router Configuration with IPv6

Verifying IPv4 and IPv6 Network Connectivity

Study Resources

Day 16: Static and Default Route Configuration

CCENT 100-101 ICND1 Exam Topics

Key Topics

Static and Default Routing Overview

IPv4 Static Route Configuration

IPv4 Static Routes Using the “Next-Hop” Parameter

IPv4 Static Routes Using the Exit Interface Parameter

IPv4 Default Route Configuration

IPv4 Summary Static Route Configuration

IPv6 Static Routing

IPv6 Static Route Configuration

IPv6 Default Route Configuration

IPv6 Summary Static Route Configuration

Study Resources

Day 15: Single-Area OSPFv2

CCENT 100-101 ICND1 Exam Topics

Key Topics

OSPF Operation

OSPF Message Format

OSPF Packet Types

Neighbor Establishment

Link-State Advertisements

OSPF DR and BDR

OSPF Algorithm

Link-State Routing Process

Single-Area OSPFv2 Configuration

The router ospf Command

The network Command

Router ID

Passive Interfaces

Modifying the OSPF Metric

Verifying OSPFv2

Study Resources

Day 14: Single-Area OSPFv3

CCENT 100-101 ICND1 Exam Topics

Key Topics

OSPFv2 Versus OSPFv3

Similarities Between OSPFv2 and OSPFv3

Differences Between OSPFv2 and OSPFv3

Single-Area OSPFv3 Configuration

The Router ID in OSPFv3

Verifying OSPFv3

Study Resources

Day 13: Inter-VLAN Routing Configuration

CCENT 100-101 ICND1 Exam Topics

Key Topics

Inter-VLAN Routing Concepts

Legacy Inter-VLAN Routing

Router on a Stick

Multilayer Switch

Router on a Stick Configuration and Verification

Multilayer Switch Inter-VLAN Routing Configuration and Verification

Creating Additional SVIs

Configuring a 2960 to Route Between VLANs

Study Resources

Day 12: DHCP Configuration

CCENT 100-101 ICND1 Exam Topics

Key Topics

DHCPv4

DHCPv4 Configuration Options

Configuring a Router as a DHCPv4 Server

Configuring a Router to Relay DHCPv4 Requests

Configuring a Router as a DHCPv4 Client

DHCPv6

SLAAC

Stateless DHCPv6

Stateful DHCPv6

Stateless and Stateful DHCPv6 Operation

DHCPv6 Configuration Options

Configuring a Router as a Stateless DHCPv6 Server

Configuring a Router as a Stateful DHCPv6 Server

Study Resources

Day 11: ACL Concepts

CCENT 100-101 ICND1 Exam Topics

Key Topics

ACL Operation

Defining an ACL

Processing Interface ACLs

List Logic with IP ACLs

Planning to Use ACLs

Types of ACLs

ACL Identification

ACL Design Guidelines

Study Resources

Day 10: Basic ACL Configuration

CCENT 100-101 ICND1 Exam Topics

Key Topics

Configuring Standard Numbered ACLs

Standard Numbered ACL: Permit Specific Network

Standard Numbered ACL: Deny a Specific Host

Standard Numbered ACL: Deny a Specific Subnet

Standard Numbered ACL: Deny Telnet or SSH Access to the Router

Configuring Extended Numbered ACLs

Extended Numbered ACL: Deny FTP from Subnets

Extended Numbered ACL: Deny Only Telnet from Subnet

Configuring Named ACLs

Standard Named ACL Steps and Syntax

Standard Named ACL: Deny a Single Host from a Given Subnet

Extended Named ACL Steps and Syntax

Adding Comments to Named or Numbered ACLs

Verifying ACLs

Study Resources

Day 9: NAT

CCENT 100-101 ICND1 Exam Topics

Key Topics

NAT Concepts

A NAT Example

Dynamic and Static NAT

NAT Overload

NAT Benefits

NAT Limitations

Configuring Static NAT

Configuring Dynamic NAT

Configuring NAT Overload

Verifying NAT

Troubleshooting NAT

NAT for IPv6

IPv6 Private Address Space

Purpose of NAT for IPv6

Study Resources

Day 8: Basic Device Security

CCENT 100-101 ICND1 Exam Topics

Key Topics

Network Security Overview

Physical Security

Types of Security Vulnerabilities

Mitigating Network Attacks

Security Best Practices

Securing the IOS

Passwords, Authentication, Timers, and SSH

Banners

Disable Services

HTTP Service

CDP

Small Services

Network Time Protocol

Study Resources

Day 7: Switch Security Configuration

CCENT 100-101 ICND1 Exam Topics

Key Topics

Configuring Port Security

Restoring a Port After a Violation

Changing the Native and Management VLANs

Shutting Down and Securing Unused Interfaces

Study Resources

Day 6: Troubleshoot IP Addressing Issues

CCENT 100-101 ICND1 Exam Topics

Key Topics

Troubleshooting Methodology

Default Gateway

Duplicate IP Addresses

DHCP Issues

Resolve IPv4 Address Conflicts

Test Connectivity Using a Static IP Address

Verify Switch Port Configuration

Test DHCPv4 Operation on the Same Subnet or VLAN

Inter-VLAN Routing and IP Addressing Issues

Study Resources

Day 5: Troubleshoot VLAN Issues

CCENT 100-101 ICND1 Exam Topics

Key Topics

VLAN Troubleshooting

Disabled VLANs

Study Resources

Day 4: Troubleshoot Trunking Issues

CCENT 100-101 ICND1 Exam Topics

Key Topics

Trunking Troubleshooting Overview

Check Both Ends of a Trunk

Check Trunking Operational States

Study Resources

Day 3: Troubleshoot ACL Issues

CCENT 100-101 ICND1 Exam Topics

Key Topics

Troubleshooting ACLs

Problem 1: Host Has No Connectivity

Problem 2: Denied Protocols

Problem 3: Telnet Is Allowed #1

Problem 4: Telnet Is Allowed #2

Problem 5: Telnet Is Allowed #3

Study Resources

Day 2: Troubleshoot Layer 1 Issues

CCENT 100-101 ICND1 Exam Topics

Key Topics

Media Issues

Interface Status and the Switch Configuration

Interface Status Codes

Duplex and Speed Mismatches

Common Layer 1 Problems On “Up” Interfaces

CDP as a Troubleshooting Tool

Study Resources

Day 1: CCENT Skills Review and Practice

Key Topics

Introduction

Topology Diagram

Addressing Table

VLANs and Port Assignments Table

ISP Configuration

Implementation

IPv4 Addressing Configuration Requirements

HQ-Sw Configuration Requirements

HQ Configuration Requirements

B1 and B2 Configuration Requirements

Staff

Verification

Your Notes

Answer Scripts

CCENT Skills Challenge

Exam Day

What You Need for the Exam

What You Should Receive After Completion

Summary

Post-Exam Information

Receiving Your Certificate

Determining Career Options

Examining Certification Options

If You Failed the Exam

Summary

Index

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