Ph.D. in Computer Science - Networking Body of Knowledge

A student has to take two courses as specified below and get an A in both the courses. 
 
Required Course:
 
CS 6250: Computer Networks 
 
One of the following courses:
 
CS 7260: Internet Architecture and Protocols
CS 7270: Internet Applications and Services 
CS 8803 taught by Professors Ammar/Dovrolis/Xu/Zegura