In which two states is a given session categorized as ephemeral? (Choose two.) 〖在哪个状态下，一个给定的会话被归类为短暂的?(选择两个)〗
A. A TCP session waiting to complete the three-way handshake. 〖等待完成三次握手的TCP会话。〗
B. A TCP session waiting for FIN ACK. 〖等待FIN ACK的TCP会话。〗
C. A UDP session with packets sent and received. 〖发送和接收报文的UDP会话。〗
D. A UDP session with only one packet received. 〖只接收一个报文的UDP会话。〗
【分析】
【答案】Ｂ C