1.  Describe TCP and UDP, and how they differ.  Why do both protocols exist?

ISATAP vs. 6to4 vs. Teredo

2.  LabSim describes the ISATAP, 6to4 and Teredo transition technologies for IPv6.  In your own words, define one (in a way that differentiates it from the others).  Then, do one of the following:

Describe a realistic scenario (with some details) for using the technology you chose

Locate a case study or other online article (of that technology or IPv6 transition in general) and provide your thoughts on it

If your organization is undergoing (or underwent) an IPv6 transition, discuss some of the details.