Are DHCP messages sent over UDP or TCP?

Related questions

1. What is DHCP decline?
2. What is the main purpose of a DHCP relay agent?
3. What is DHCP Relay on router?
4. What is the IP address of the client?
5. What port does DHCP relay use?
6. What is DHCP IP helper address?
7. What is DHCP lease?
8. What is DHCP NAK?
9. What is the purpose of the lease time in DHCP offer messages?
10. Can you have multiple IP helper address?

Tags

1. #timing
2. #datagram
3. #offer
4. #packet
5. #exchange
6. #numbers
7. #sequence
8. #client
9. #first
10. #source
11. #server
12. #answer
13. #protocol
14. #indicated
15. #request
16. #messages
17. #discover
18. #illustrating
19. #destination
20. #between