I believe the answer is modem
The correct answer: The motherboard
The motherboard which is a piece of technology which has most of the electronics of a personal computer is (usually) found at the center most part of a Central Processing unit (CPU).
The motheboard needs to be compatible with all the components found in the Central Processing Unit because almost all the important components is connected to it. Just imagine if the power which the power suppy supplies to the motherboard is inadequate due to electrical incompatibility, do you think the Central processing unit will work? It won't. As a matter of fact if you turn on the CPU, it will just switch off on itself in just a few seconds.
UDP = connectionless vs. TCP is connection oriented.
Many people would answer this in many different ways. In my personal opinion, it's a yes. It's a yes because it makes it easier for people to track you down (finding your iep) and it's easy for someone to take your identity. It's also dangerous for children and teens (even young adults) because there are many people wanting them, and wanting to meet them in public and things like that. I hope I answered your question! (:
