问题
单项选择题
如果网络中出现拥塞,则路由器产生一个( )。
A.超时报文
B.源端抑制报文
C.目标不可到达报文
D.路由重定向报文
答案
参考答案:B
解析: 如果网络中出现拥塞,则路由器产生一个源端抑制报文。
如果网络中出现拥塞,则路由器产生一个( )。
A.超时报文
B.源端抑制报文
C.目标不可到达报文
D.路由重定向报文
参考答案:B
解析: 如果网络中出现拥塞,则路由器产生一个源端抑制报文。
Li Ming (L) and John (J) have just finished swimming. L: How nice and cool the water is! But I’m feeling a bit hungry now. 小题1: J: Sounds good. L: 小题2: J: Yes, there is. L: 小题3: J: It’s only five minutes’ walk. Let’s go. L: Yeah. Oh, I almost forgot my CD player. J: Oh, it’s over there. 小题4: L: Pop music. I often listen to it when I’m not busy. How about you? J: Light music. I think it can relax myself. 小题5: L: Sure. J: OK. I can lend you some CDs. I’ll bring them to school tomorrow. L: Thanks.
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