Which of the following are true statements regarding the characteristics of OSPF areas? Select all that apply.（）A、All OSPF networks require the use of multiple areasB、Multiple OSPF areas must connect to area 0C、Single area OSPF networks must be configured in area 1D、Areas can be assigned any number from 0 to 63535E、Area 0 is called the backbone areaF、Each OSPF area need to be configured with a loopback interface
Which of the following are true statements regarding the characteristics of OSPF areas? Select all that apply.（）
- A、All OSPF networks require the use of multiple areas
- B、Multiple OSPF areas must connect to area 0
- C、Single area OSPF networks must be configured in area 1
- D、Areas can be assigned any number from 0 to 63535
- E、Area 0 is called the backbone area
- F、Each OSPF area need to be configured with a loopback interface
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