Regarding the transport layer protocol, which of the following statements are correct? (Multiple Choice)

Regarding the transport layer protocol, which of the following statements are correct? (Multiple Choice)
A . The establishment of a TCP connection is a three-way handshake process, and the termination of a TCP connection requires a four-way handshake
B . UDP uses the SYN and ACK flags to request and confirm the establishment of a connection
C . The range of well-known port numbers is 1-1023
D . UDP is suitable for transmitting delay-sensitive traffic and can be reorganized according to the sequence number field in the message header

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Answer: AC