Information Systems Technician Training Series, Module 3 - Network Communications
http://www.tpub.com/content/istts/14224/

Provides information on the duties and responsibilities of the Radioman as they relate to network administration, local area network (LAN) hardware, and network troubleshooting.

Assignment 1 Information System Technician Training Series Module 3- Network Communications Chapter 1 Network Administration
Test not yet available

http://www.tpub.com/content/istts/14224/css/14224_13.htm through 
http://www.tpub.com/content/istts/14224/css/14224_31.htm

Assignment 2 Information System Technician Training Series Module 3- Network Communications Chapter 2 LAN Hardware and Chapter 3 Network Troubleshooting
Test not yet available

http://www.tpub.com/content/istts/14224/css/14224_33.htm through
http://www.tpub.com/content/istts/14224/css/14224_49.htm