单选题What is also called Type 0 authentication in OSPF on Cisco Routers？（）AMD5BThere is no Type 0 authenticationCSHA1DNull
单选题
What is also called Type 0 authentication in OSPF on Cisco Routers？（）
A
MD5
B
There is no Type 0 authentication
C
SHA1
D
Null
参考解析
解析：
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