Slide deck from our Basics of Computer Networking webinar lead by instructor Daniel Cummins. Networks are as different as the people and organizations that use them. Despite those differences, there are some foundational components that all networks share. Explore different types of networks and the common components that must exist in these networks. Learn more about TCP/IP, the protocol suite that connects the whole world together and look at the ways in which we connect to the world via the Internet. Topics covered include network components, network types, and network protocols. For more information on networking training, visit https://ter.li/37zcnu
9. Media
Different types of signals
are transmitted over
different media.
Electricity is
transmitted
over copper
Radio frequencies
are transmitted
through air
Light is transmitted
over optical fiber
1-8
12. The TCP/IP Networking Model
Layer Name Function Examples
Application Define applications protocol functions FTP, SSH, DNS
Transport Manage communication sessions TCP, UDP
Internet IP addressing, routing IPv4, RIP, IPv6
Network interface Physical transmission Ethernet, Wi-Fi
1-6
13. Peer-To-Peer Protocols: Actual Flow
From Patrick To Margaret
Application
Transport
Internet
Network interface
Application
Transport
Internet
Network interface
Data
AH
AH
AH TH
TH IHAH
AH
AH TH
AH TH IH NH
IH
TH
AH
TH
IH
NH
1-8
14. Peer-To-Peer Protocols: Effective Flow
Application
Transport
Internet
Network interface
Application
Transport
Internet
Network interface
1-8
16. Activity: Build a LAN
In this activity, you will arrange network components properly to build a LAN with
a connection to a WAN.
Click GO to start the activity. Once it opens, drag each network component or
technology into the appropriate box in the network diagram to complete the
diagram.
GO
Instructor Notes
The preferred method of execution for this activity is to have students click GO on the slide from their Adobe Connect window. If for any reason students have trouble executing the file this way, use one of the preferred methods described below the correct answers (listed below).
The activity is drag and drop. The network components are listed in the lower right corner of the screen. Students complete the exercise by dragging each component to the correct box in the network diagram. As a debrief, you might launch the activity yourself and show students the correct answers.
The correct answers are as follows:
802.11n medium: Radio waves
Box to right of 802.11n medium: WAP
802.11n collision handling: CSMA/CA
802.3 medium: Ethernet cable
Box to right of 802.3 medium: Access switch
802.3 collision handling: CSMA/CD
Box to right of core switch: Router
Box to left of WAN cloud: Firewall
Alternate File Execution Method: Individual Exercise
In virtual and C+V classes, this activity can be accomplished as an individual exercise. Load the 3705_IT_Funds_9-LAN.swf file into a share pod in Adobe Connect to launch the activity. (The file is located in the Energizers folder in the IT Fundamentals folder in the Shared Content library.) Once you open the file, make sure the Sync button is not pressed. Students should now be able to complete the exercise on their own.
Alternate File Execution Method: Class Exercise
In ILT classes (and as an alternative method of delivery in virtual and C+V classes), conduct this activity as a class exercise. Go through and answer the activity as a class, with students offering suggestions on correct answers.
NOTE! The file is located in the Adobe Connect Shared Content library. If you are teaching an ILT class, you will need to log into Adobe Connect to run the file from this location. As an alternative, you can run the file directly—3705_IT_Funds_9–LAN.swf—which is provided as part of the slides Zip package on the FTP.