Network and security

A very comprehensive glossary of network terms, obviously not all required for our examinations and syllabus, but they are extremely valuable.
Also, links to how stuff work's networking and security.

• Here is a great Networking Tutorial for beginners with pretty much all computer networking essentials covered.

Although you don't need to memorise the OSI reference model, awareness of the layered nature of networks is very important.

• http://www.computerhope.com/jargon/network.htm
• http://computer.howstuffworks.com/computer-networking-channel.htm
• http://computer.howstuffworks.com/security-channel.htm
• http://www.webopedia.com/quick_ref/OSI_Layers.asp
• http://searchnetworking.techtarget.com/definition/OSI 
• http://searchnetworking.techtarget.com/feature/Wireless-encryption-basics-Understanding-WEP-WPA-and-WPA2
• http://www.webopedia.com/DidYouKnow/Computer_Science/WEP_WPA_wireless_security.asp

And finally, a slideshow on error detection and correction:

Computer Networks - Error Detection & Error Correction from Saikrishna Tanguturu