3. Lesson 1: Networking Without Wires
What Is a Wireless Network?
Wireless Network Technologies
Wireless Network Security Options
4. 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
5. Wireless Network Technologies
Standard
Speeds
up to
Pros Cons
802.11a
54 Mbps
Fast Speed
Many simultaneous users
Uses 5 GHz frequency
Short-range signals
Not compatible with 802.11b
802.11b 11 Mbps
Cheap
Good signal range
Slower speeds
Fewer simultaneous users
Uses 2.4 GHz frequency
Interference
802.11g
54 Mbps
More simultaneous users
Best signal range
Compatible with 802.11b
Uses 2.4 GHz frequency
Interference
More expensive than 802.11b
6. 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
7. 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
8. 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
9. Wireless Signal Strength
To improve signal strength, move the computer:To improve signal strength, move the computer:
Closer to the WAPCloser to the WAP
Away from devices that might cause interferenceAway from devices that might cause interference
10. Demonstration: Connecting to a Wireless Network
Your instructor will demonstrate how to:
Connect to a Wireless Network
Connect to an Unlisted Wireless Network
11. Process for Troubleshooting a Wireless Network
Connection
To run the Windows Network Diagnostics:To run the Windows Network Diagnostics:
Resolve the problemResolve the problem55
Identify the problemIdentify the problem44
Review the informationReview the information33
Diagnose the connectionDiagnose the connection22
Attempt to connect to a networkAttempt to connect to a network11
12. 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
13. What Are Offline Files?
With Offline Files, you can take your computer off
the network and still have access to shared files
With Offline Files, you can take your computer off
the network and still have access to shared files
14. Options for Configuring Offline Files
With Offline Files, you can choose how your offline
files are configured
With Offline Files, you can choose how your offline
files are configured
15. 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
16. 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
17. Lab: Networking Mobile Computers
Exercise 1: Configuring a Wireless
Network
Exercise 2: Troubleshooting a Wireless
Network
Exercise 3: Using Offline Files
