多选题What are three characteristics of UDP?（）AUDP is faster than TCPBUDP operates at the Transport LayerCUDP is connection-orientedDUDP data is sent best-effortEUDP is more reliable than TCP
多选题
What are three characteristics of UDP?（）
A
UDP is faster than TCP
B
UDP operates at the Transport Layer
C
UDP is connection-oriented
D
UDP data is sent best-effort
E
UDP is more reliable than TCP
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