Free Huawei H12-821_V1.0 Exam Questions

Link aggregation is a common network technology. Which of the following are advantages of link aggregation?

When two BGP peers support different Hold Time, they will negotiate to support the shortest Hold Time interval they can support.

In inter-AC roaming scenarios, an AC can function as the mobility server of multiple mobility groups, but can be added only to one mobility group. 

IGMP group entries play an important role in multicast forwarding. An administrator runs a command to view information about a multicast entry. The information is as follows: sql CopyInterface group report information Vlanif100(10.1.6.2): Total 1 IGMP Group reported Group Address Last Reporter Uptime Expires 225.1.1.2 10.1.6.10 00:02:04 00:01:17 Given this, which of the following statements are true?

As shown in the figure, data traffic is forwarded in tunnel mode along the path of STA -> HAP -> HAC -> upper-layer network before roaming. What is the flow direction of data traffic after Layer 3 roaming?