Contact 7 – Conditional Redirect

I am hoping to get some clarification regarding Contact 7 and its ability to operate based on set conditions.

My desire is as follows:
1.) Form will have 2 drop down fields (Degree Level Desired & Program of Interest).

2.) Dropdown 1 has the following code:

<p>Degree Level Desired
[select* DegreeLevelDesired “Doctoral” “Master’s” “Bachelor’s” “Associate” “Graduate Certificates”] </p>

3.) Dropdown 2 needs to populate based on the selection from dropdown 1. Currently, dropdown 2 has the following code:

<p>Degree Level Desired
[select* ProgramOfInterest “Accounting” “Business Administration – Accounting” “Business Administration – Logistics” “Business Administration – Management” “Business Administration – Marketing” “Business Administration – Project Management” “Computer Information Systems” “Criminal Justice” “Criminal Justice – Criminalistics” “Criminal Justice – Homeland Security” “Health Care Management” “Human Resources Management” “Liberal Studies” “Psychology” “Religion” “Sociology”] </p>

4.) Based on the input from dropdown 1, dropdown 2 will need to populate one of 5 different lists. How do I go about setting that up?

5.) Then, regarding the redirection to a specified URL based on the selections from BOTH dropdowns, I have seen numerous times that a code would need to be placed in the “additional settings” box. How is this code determined?

Thank you in advance for your assistance. I hope that I described my issue well enough. Please let me know if more information is needed.