Intro to IP

Question 1

TCP

Answer 1

Transmission Control Protocol
connection oriented - a formal connection setup and close, “reliable” delivery, flow control

Question 2

UDP

Answer 2

User Datagram Protocol
connectionless - no formal open/close to the connection, “unreliable” delivery, no flow control

Question 3

why use UDP?

Answer 3

Real time communication, no way to stop and resend the data
connectionless protocols (DHCP, TFTP)

Question 4

communication using TCP

Answer 4

connection oriented protocols prefer a “return receipt” (HTTPS, SSH)
the application doesn’t worry about out of order frames or missing data

Question 5

Speedy delivery

Answer 5

the IP delivery truck delivers from one IP address to another IP address