1. [单选题]A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address?
A. 172.16.42.0
B. 172.16.107.0
C. 172.16.208.0
D. 172.16.252.0
E. 172.16.254.0
2. [单选题]以下()LSA类型是ASBR来宣告外部路由信息的。()
A. 类型1
B. 类型2
C. 类型3
D. 类型4
E. 类型5