They are both IP packets; both TCP and UDP use IP as their basis. TCP is used to create a channel with flow control, UDP just sends single packets that may get lost.
Answer:
showing great care and perseverance.
It means you cant send email since port 25 id reserved for SMTP protocol
Well actually it affects her credit. Home owners would not want to sell a house to someone who doesn't pay bills on time. It shows he/she is unreliable