Why does the man ask the woman to give him some time?
A.He has to talk to his wife first.
B.He needs to look over the X-ray.
C.He wishes to speak with Mr. Shaw.
D.He wants to make a phone call.
第1题
如果一台路由器发生了拥塞那么它应该向数据报的源主机发送的ICMP报文为源站抑制报文。()
第4题
若路由器R因为拥塞丢弃IP分组,则此时R可向发出该IP分组的源主机发送的ICMP报文类型是()。
A.路由重定向
B.目的不可达
C.源点抑制
D.超时
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