CCENT Schedule
CCENT Cost
Who should attend CCENT?
Channel Partner / Reseller
Customer
Employee
Anyone looking to further their networking knowledge.
CCENT Course Objectives
Upon completing this course, the learner will be able to meet these overall objectives:
Describe how networks function, identifying major components, function of network components, and the OSI reference model
Using the host-to-host packet delivery process, describe issues related to increasing traffic on an Ethernet LAN and identify
switched LAN technology solutions to Ethernet networking issues
Describe the reasons for extending the reach of a LAN and the methods that can be used, with a focus on RF wireless access
Describe the reasons for connecting networks with routers and how routed networks transmit data through networks using TCP / IP
Describe the function of WANs, the major devices of WANs, and configure PPP encapsulation, static and dynamic routing, PAT, and RIP routing
Use the command-line interface to discover neighbors on the network and manage the router start up and configuration
CCENT Course Syllabus
PDF Available
Interconnecting Cisco Networking Devices, Part 1, Volume 1:
Course Introduction
Overview
Learner Skills and Knowledge
Course Goal and Objectives
Course Flow
Additional References
Cisco Glossary of Terms
Your Training Curriculum
Training Curriculum
Building a Simple Network
Overview
Module Objectives
Exploring the Functions of Networking
Overview
Objectives
What is a Network?
Common Physical Components of a Network
Interpreting a Network Diagram
Resource-Sharing Functions and Benefits
Network User Applications
Impact of User Applications on the Network
Characteristics of a Network
Logical vs. Physical Topologies
Logical Topologies
Physical Topologies
Bus Topology
Star and Extended-Star Topologies
Star Topology
Extended-Star Topology
Ring Topologies
Single-Ring Topology
Double-Ring Topology
Mesh and Partial-Mesh Topologies
Full-Mesh Topology
Partial-Mesh Topology
Connection to the Internet
Summary
Securing the Network
Overview
Objectives
Need for Network Security
Balancing Network Security Requirements
Adversaries, Adversary Motivations, and Classes of Attack
Classes of Attack
Mitigating Common Threats
Physical Installations
Reconnaissance Attacks
Access Attacks
Password Attacks
Summary
References
Understanding the Host-to-Host Communications Model
Overview
Objectives
Understanding Host-to-Host Communications
OSI Reference Model
OSI Model Layers and Their Functions
Layer 1: The Physical Layer
Layer 2: The Data Link Layer
Layer 3: The Network Layer
Layer 4: The Transport Layer
Layer 5: The Session Layer
Layer 6: The Presentation Layer
Layer 7: The Application Layer
Encapsulation and De-Encapsulation
Encapsulation
Example: Sending a Package Through a Postal Service
De-Encapsulation
Example: Receiving a Package
Peer-to-Peer Communication
TCP/IP Suite
Summary
Understanding the TCP/IP Internet Layer
Overview
Objectives
Internet Protocol
Example: Delivering a Letter Through a Postal Service
IP Addressing
IP Address Fields
IP Address Classes
Class A
Class B
Class C
Reserved IP Addresses
Network Address
Directed Broadcast Address
Local Broadcast Address
Local Loopback Address
Autoconfiguration IP Addresses
Network ID
Host ID
Public and Private IP Addresses
Public IP Addresses
Private IP Addresses
Dynamic Host Configuration Protocol
Domain Name System
Using Common Host Tools to Determine the IP Address of a Host
Summary
Understanding the TCP/IP Transport Layer
Overview
Objectives
Transport Layer Functions
Example: UDP- Sending Regular Mail
Example: TCP- Sending Certified Mail
Session Multiplexing
Identifying the Applications
Segmentation
Flow Control
Connection-Oriented Transport Protocol
Reliability
Reliable vs. Best-Effort
Reliable (Connection-Oriented)
Best-Effort (Connectionless)
User Datagram Protocol
Example: Sending Advertising Flyers
Transmission Control Protocol
TCP Header
TCP/IP Applications
Passing Network to Transport
Passing Transport to Applications
Well-known Ports
Registered Ports
Dynamically Assigned Ports
Establishing a Connection with a Peer System
Three-Way Handshake
Flow Control
Acknowledgement
Windowing
TCP Acknowledgement
Windowing
Fixed Windowing
Example: Throwing a Ball
TCP Sliding Windowing
Maximize Throughput
Global Synchronization
TCP Sequence Number and Acknowledgement Numbers
Summary
Exploring the Packet Delivery Process
Overview
Objectives
Layer 1 Devices and Their Function
Layer 2 Devices and Their Function
Layer 2 Addressing
Layer 3 Devices and Their Function
Layer 3 Addressing
Mapping Physical Addressing to Network Addressing
ARP Table
Host-to-Host Packet Delivery
Function of the Default Gateway
Using Common Host Tools to Determine the Path Between Two Hosts Across a Network
Summary
Understanding Ethernet
Overview
Objectives
Definition of a LAN
Examples: A Small Office LAN and an Enterprise LAN
Components of a LAN
Functions of a LAN
How Large is a LAN?
Ethernet
Ethernet LAN Standards
LLC Sublayer
MAC Sublayer
Ethernet Frames
Ethernet Frame Addressing
Ethernet Addresses
MAC Addresses and Binary-Hexadecimal Numbers
Summary
Connecting to an Ethernet LAN
Overview
Objectives
Ethernet Network Interface Cards
Ethernet Media and Connection Requirements
Connection Media
UTP Implementation
Summary
Module Summary
References
Module Self-Check
Module Self-Check Answer Key
Ethernet LANs
Overview
Module Objectives
Understanding the Challenges of Shared LANs
Overview
Objectives
Ethernet LAN Segments
Extending a LAN Segment
Collisions
Collision Domains
Role of CSMA/CD in Ethernet
Summary
Solving Network Challenges with Switched LAN Technology
Overview
Objectives
Typical Causes of Network Congestion
Bridges – Early Solutions to Network Congestion
How Switches Segment the Ethernet Network
Switches
Switches vs. Bridges
Switching in Action
LANs Using Switched Technology
Summary
Exploring the Packet Delivery Process
Overview
Objectives
Layer 2 Addressing
Layer 3 Addressing
Host-to-Host Packet Delivery
Summary
Operating Cisco IOS Software
Overview
Objectives
Cisco IOS Software Features and Functions
Configuring Network Devices
External Configuration Sources
Cisco IOS Command-Line Interface Functions
Entering the EXEC Modes
Keyboard Help in the CLI
Enhanced Editing Commands
Command History
Summary
Starting a Switch
Overview
Objectives
Physical Startup of the Catalyst Switch
Switch LED Indicators
Viewing Initial Bootup Output from the Switch
Logging in to the Switch
Configuring a Switch from the Command Line
Showing the Switch Initial Startup Status
MAC Address Table Management
Summary
Understanding Switch Security
Overview
Objectives
Physical and Environmental Threats
Configuring Password Security
Configuring the Login Banner
Telnet vs. SSH Access
Port Security Configuration
Securing Unused Ports
Summary
Maximizing the Benefits of Switching
Overview
Objectives
Microsegmentation
Example: Getting a Dedicated On-Ramp
Duplex Communication
Half Duplex
Full Duplex
Example: Data Conversations
Duplex Interface Configuration
Example: Showing Duplex Options
The Need for Different Media Rates in an Enterprise Network
Physical Redundancy in an Ethernet LAN
Example: Loops in a Switched Network
Loop Resolution with Spanning Tree Protocol
Summary
Troubleshooting Switch Issues
Overview
Objectives
Using a Layered Approach
Identifying and Resolving Common Port Issues
Identifying and Resolving Media Issues
Identifying and Resolving Common Configuration Issues
Summary
Module Summary
Module Self-Check
Module Self-Check Answer Key
Wireless LANs
Overview
Module Objectives
Exploring Wireless Networking
Overview
Objectives
Business Case for WLAN Services
Differences Between WLANs and LANs
RF Transmission
Organizations that Define WLANs
ITU-R Local FCC Wireless
IEEE 802.11 Standards Comparison
Wi-Fi Certification
Summary
Understanding WLAN Security
Overview
Objectives
WLAN Security Threats
Mitigating Security Threats
Evolution of WLAN Security
Wireless Client Association
How 802. 1X Works on WLANs
WPA and WPA2 Modes
Enterprise Mode
Personal Mode
Summary
Implementing a WLAN
Overview
Objectives
IEEE 802.11 Topology Building Blocks
BSA Wireless Topology
Wireless Topology Data Rates
Access Point Configuration
Steps to Implement a Wireless Network
Wireless Clients
Wireless Troubleshooting
Summary
VoIP Requirements
Overview
Objectives
VoIP Requirements in Switched Networks
Summary
Module Summary
Module Self-Check
Module Self-Check Answer Key
Interconnecting Cisco Networking Devices, Part 1, Volume 2:
LAN Connections
Overview
Module Objectives
Exploring the Functions of Routing
Overview
Objectives
Routers
Path Determination
Routing tables
Routing Table Information
Routing Update Messages
Static, Dynamic, Directly Connected, and Default Routes
Dynamic Routing Protocols
Routing Metrics
Routing Methods
Summary
Understanding Binary Basics
Overview
Objectives
Decimal and Binary Systems
Powers of 2
Least Significant Bit and Most Significant Bit
Base-2 Conversion System
Decimal and Binary Numbers Chart
Decimal-to-Binary Conversion
Binary-to-Decimal Conversion
Summary
Constructing a Network Addressing Scheme
Overview
Objectives
Subnetworks
Two-Level and Three-Level Addresses
Subnet Creation
How End Systems Use Subnet Masks
How Routers Use Subnet Masks
Mechanics of Subnet Mask Operation
Octet Values of a Subnet Mask
Computing Usable Subnetworks and Hosts
Computing Hosts for a Class C Subnetwork
Computing Hosts for a Class B Subnetwork
Computing Hosts for a Class A Subnetwork
Applying Subnet Mask Operation
Determining the Network Addressing Scheme
Class C Example
Class B Example
Class A Example
Summary
Starting a Cisco Router
Overview
Objectives
Initial Startup of a Cisco Router
Initial Setup of a Cisco Router
Logging into the Cisco Router
Showing the Router Initial Startup Status
Summary
Configuring a Cisco Router
Overview
Objectives
Cisco Router Configuration Modes
Configuring a Cisco Router from the CLI
Configuring Cisco Router Interfaces
Configuring the Cisco Router IP Address
Verifying the Interface Configuration
Summary
Exploring the Packet Delivery Process
Overview
Objectives
Layer 2 Addressing
Layer 3 Addressing
Host-to-Host Packet Delivery
Using the show ip arp Command
Using Common Cisco IOS Tools
Summary
Understanding Cisco Router Security
Overview
Objectives
Physical and Environmental Threats
Configuring Password Security
Configuring the Login Banner
Telnet and SSH Access
Summary
Using Cisco SDM
Overview
Objectives
Cisco SDM Overview
Cisco SDM User Interface
Configuring Your Router to Support Cisco SDM
Start Cisco SDM
The More Link
Configuration Overview
Cisco SDM Wizards
Summary
Using a Cisco Router as a DHCP Server
Overview
Objectives
Understanding DHCP
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPPACK
Using a Cisco Router as a DHCP Server
Using a Cisco SDM to Enable the DHCP Server Function
Monitoring DHCP Server Functions
Summary
Accessing Remote Devices
Overview
Objectives
Establishing a Telnet or SSH Connection
Telnet
Secure Shell
Suspending and Resuming a Telnet Session
Closing a Telnet Session
Alternate Connectivity Tests
Summary
Module Summary
Module Self-Check
Module Self-Check Answer Key
WAN Connections
Overview
Module Objectives
Understanding WAN Technologies
Overview
Objectives
What is a WAN?
Why Are WANs Necessary?
How is a WAN Different from a LAN?
WAN Access and the OSI Reference Model
WAN Devices
WAN Cabling
Role of Routers in WANs
WAN Data-Link Protocols
Metro Ethernet
WAN Communication Link Options
Private WAN Connection Options
Public WAN Connection Options
Last Mile and Long Range WAN Technologies
Summary
Enabling the Internet Connection
Overview
Objectives
Packet-Switched Communication Links
Digital Subscriber Line
DSL Types and Standards
DSL Considerations
Cable
Global Internet: The Largest WAN
Obtaining an Interface Address from a DHCP Server
Introducing NAT and PAT
Differences Between NAT and NAT Overload
Translating Inside Source Addresses
Example: Translating Inside Source Addresses
Example: Overloading an Inside Global Address
Configuring the DHCP Client and PAT
Verifying the DHCP Client Configuration
Verifying the NAT and PAT Configuration
Summary
Enabling Static Routing
Overview
Objectives
Routing Overview
Static and Dynamic Route Comparison
When to Use Static Routes
Static Route Configuration
Example: Static Routes
Example: Configuring Static Routes
Default Route Forwarding Configuration
Static Route Configuration Verification
Example: Verifying the Static Route Configuration
Summary
Configuring Serial Encapsulation
Overview
Objectives
Circuit-Switched Communication Links
Public Switched Telephone Network
Point-to-Point Communication Links
Bandwidth
Point-to-Point Communication Considerations
High-Level Data Link Control Protocol
Verifying Serial HDLC Encapsulation
Example: Verifying HDLC Encapsulation Configuration
Point-to-Point Protocol
PPP Layered Architecture
Example: PPP Configuration
Serial PPP Encapsulation Configuration Verification
Summary
Enabling RIP
Overview
Objectives
Dynamic Routing Protocol Overview
Features of Dynamic Routing Protocols
Example: Administrative Distance
Classless vs. Classful Routing
Distance Vector Route Selection
Example: Distance Vector Routing Protocols
Example: Sources of Information and Discovering Routes
RIP Features
RIPv1 and RIPv2 Comparison
Dynamic Routing Configuration Tasks
RIP Configuration
Example: RIP Configuration
RIP Configuration Verification
Example: Verifying the RIP Configuration
RIP Configuration Troubleshooting
Example: Debug ip rip Command
Summary
Module Summary
Module Self-Check
Module Self-Check Answer Key
Network Environment Management
Overview
Module Objectives
Discovering Neighbors on the Network
Overview
Objectives
Creating a Network Map of the Environment
Cisco Discovery Protocol
Information Obtained with Cisco Discovery Protocol
Link Layer Discovery Protocol
Implementation of Cisco Discovery Protocol
Using the show cdp neighbors Command
Monitoring and Maintaining Cisco Discovery Protocol
Summary
Managing Cisco Router Startup and Configuration
Overview
Objectives
Internal Router Components
Stages of the Router Power-On Boot Sequence
How a Device Locates and Loads Cisco IOS Image and Configuration Files
Configuration Register
Summary
Managing Cisco Devices
Overview
Objectives
Cisco IOS File System and Devices
Managing Cisco IOS Images
Cisco IOS copy Command
Managing Device Configuration Files
Using show and debug Commands on Cisco Devices
Summary
Module Summary
Module Self-Check
Module Self-Check Answer Key
Interconnecting Cisco Networking Devices
Lab Guide
Overview
This guide presents instructions and other information concerning the lab activities for this course. You can find the solutions in the Lab Activity Answer Key.
Outline
This guide includes these activities:
- Lab 1-1: Using Windows Applications as Network Tools
- Lab 1-2: Observing the TCP Three-Way Handshake
- Lab 1-3: Observing Extended PC Network Information
- Lab 2-1: Connecting to Remote Lab Equipment
- Lab 2-2: Performing Switch Startup and Initial Configuration
- Lab 2-3: Enhancing the Security of Initial Switch Configuration
- Lab 2-4: Operating and Configuring a Cisco IOS Device
- Lab 4-1: Converting Decimal to Binary, and Binary to Decimal
- Lab 4-2: Classifying Network Addressing
- Lab 4-3: Computing Usable Subnetworks and Hosts
- Lab 4-4: Calculating Subnet Masks
- Lab 4-5: Performing Initial Router Startup
- Lab 4-6: Performing Initial Router Configuration
- Lab 4-7: Enhancing the Security of Initial Router configuration
- Lab 4-8: Using Cisco SDM to Configure DHCP Server Function
- Lab 4-9: Managing Remote Access Sessions
- Lab 5-1: Connecting to the Internet
- Lab 5-2: Connecting to the Main Office
- Lab 5-3: Enabling Dynamic Routing to the Main Office
- Lab 6-1: Using Cisco Discovery Protocol
- Lab 6-2: Managing and Router Startup Options
- Lab 6-3: Managing Cisco Devices
- Lab 6-4: Confirming the Reconfiguration of the Branch Network
- Answer Key
