Module 12: Wireless

Overview

Networking Without Wires

Connecting to a Wireless Network

Working with Offline Files

Lesson 1: Networking Without Wires

What Is a Wireless Network?

Wireless Network Technologies

Wireless Network Security Options

What Is a Wireless Network?

A wireless network:

Wireless networks can work in 2 modes:

Uses radio waves instead of wiresUses radio waves instead of wires

Enables users to roamEnables users to roam

Adds additional security headachesAdds additional security headaches

Ad hocAd hoc

InfrastructureInfrastructure

Wireless Network Technologies

Standard Speeds up to

Pros Cons

802.11a54 Mbps

Fast Speed

Many simultaneous users

Uses 5 GHz frequency

Short-range signals

Not compatible with 802.11b

802.11b 11 MbpsCheap

Good signal range

Slower speeds

Fewer simultaneous users

Uses 2.4 GHz frequency

Interference

802.11g54 Mbps

More simultaneous users

Best signal range

Compatible with 802.11b

Uses 2.4 GHz frequency

Interference

More expensive than 802.11b

Wireless Network Security Options

Option Features

Wired Equivalent Privacy (WEP)

Open system or shared key authentication

RC4 encryption

Wi-Fi Protected Access

(WPA or WPA-2)

User and computer authentication

RC4 with IV Encryption

802.1x Authentication Physical port authentication

Lesson 2: Connecting to a Wireless Network

Hardware for Connecting to a Wireless Network

Wireless Signal Strength

Demonstration: Connecting to a Wireless Network

Process for Troubleshooting a Wireless Network Connection

Hardware for Connecting to a Wireless Network

Connect and configure a WAPConnect and configure a WAP

Configure a client computer to connect to the wireless network Configure a client computer to connect to the wireless network

Wireless Signal Strength

To improve signal strength, move the computer:To improve signal strength, move the computer:

Closer to the WAP Closer to the WAP

Away from devices that might cause interference Away from devices that might cause interference

Demonstration: Connecting to a Wireless Network

Your instructor will demonstrate how to:

Connect to a Wireless Network

Connect to an Unlisted Wireless Network

Process for Troubleshooting a Wireless Network Connection

To run the Windows Network Diagnostics:To run the Windows Network Diagnostics:

Resolve the problem Resolve the problem 55

Identify the problem Identify the problem 44

Review the informationReview the information33

Diagnose the connection Diagnose the connection 22

Attempt to connect to a network Attempt to connect to a network 11

Lesson 3: Working with Offline Files

What Are Offline Files?

Options for Configuring Offline Files

Options for Making a Network File Available Offline

Demonstration: Accessing Offline Files by Using Windows 7

What Are Offline Files?

With Offline Files, you can take your computer off the network and still have access to shared filesWith Offline Files, you can take your computer off the network and still have access to shared files

Options for Configuring Offline Files

With Offline Files, you can choose how your offline files are configuredWith Offline Files, you can choose how your offline files are configured

Options for Making a Network File Available Offline

With Offline Settings, you can choose how your computer makes files available to computers with Offline Files configured

With Offline Settings, you can choose how your computer makes files available to computers with Offline Files configured

Demonstration: Accessing Offline Files by Using Windows 7

Your instructor will demonstrate how to:

Setup an offline share

Access offline files

Edit offline files

Sync offline files

Lab: Networking Mobile Computers

Exercise 1: Configuring a Wireless Network

Exercise 2: Troubleshooting a Wireless Network

Exercise 3: Using Offline Files

Course Evaluation