Answer all of the topics below. Your analysis should demonstrate you understand the material.  In general, each topic should be covered in 400-600 words.

1. For the OSI seven-layer model, explain in your own words the function of each layer and list examples of protocols for each of the layers. This can be in list or chart form.
2. Run and explain the command(s) for determining the network information on your PC or other device. Include all critical network information for your PC or device, such as IP address, MAC address, subnet mask, DNS server, etc. Include screen captures to show your work. 
3. Explain at least two similarities and two differences between IPv4 and IPv6.
4. Explain the purpose behind DNSSEC.  How does it use cryptography to secure network traffic?  How is it used by organizations to ensure network security?

Your assignment should be in a Word compatible document, and have proper attention to formatting, spelling, grammar, and punctuation. All references and citations must be in APA format.  This is worth 80 points and is due at the end of week 3.  Submit using the link above.