The growth of multimedia applications has put a strain on the internet data traffic and congestion becomes an issue. One may find the response time can be quite slow at times. Actually, internet protocol designers have thought about this. They envision that service providers can provide better or faster service to users who are willing to pay more. That is, there is a way to differentiate communication among users or applications.
a. What is a mechanism to do this (differentiating services)? Be specific. Explain where this is implemented and how.
b. What part of multimedia that is responsible for increasing the congestion on the internet? Be verbose. Explain and justify your answer.