OSPF routing uses the concept of areas

OSPF routing uses the concept of areas. What are the characteristics of OSPF areas?（）

A Each OSPF area requires a loopback interface to be configured.
B Areas may be assigned any number from 0 to 65535.
C Area 0 is called the backbone area.
D Hierarchical OSPF networks do not require multiple areas.
E Multiple OSPF areas must connect to area 0.
F Single area OSPF networks must be configured in area 1.

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分类：CCNA(640-802)题库

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