Which of the following are used in Ethernet networks? (Multiple Choice)

To configure AAA, you first need to define the XRADIUS RADIUS server as follows:
[Huawei] radius-server template EXAM
[Huawei-radius-EXAM] radius-serve shared-key cipher HUAwei123
[Huawei-radius-EXAM] radius-se authentication 10.7.66.66 1812
[Huawei-radius-EXAM] radius-se authorization 10.7.66.661812
[Huawei radius -EXAM] radius-server retransmit 27. 1813
[Huawei-radius-EXAM] radius-serv accounting 10

A router is configured for OSPF and is connected to two areas: area 0 and area 1. You configure area 1 as a stub area. Which LSA types will exist inside area 1?

Single selection After configuring the VLAN-based MAC address drift detection function, if the MAC address drifts, you can configure the actions of the interface according to your needs.
Which of the following is not a configurable action?

Which of the following description is wrong about BGP routing selection?