单项选择题
You are running OSPF between two ERX Edge Routers across an OC-12c link with HDLC encapsulation.
How many designated routers are present for this link?（）
A.0
B.1
C.2
D.3
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相关考题
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单项选择题
What is the default authentication method on an OSPF interface?（）
A.A
B.B
C.C
D.D -
多项选择题
What are the three OSPF authentication methods supported on the ERX Edge Router?（）
A.A
B.B
C.C
D.D
E.E -
单项选择题
Where is OSPF authentication configured on the ERX Edge Router?（）
A.A
B.B
C.C
D.D
