Which of the following statement is correct?

Which of the following description of the evolutionist in the mainstream SDN model in the industry is correct? (Multiple Choice)

Which of the following alarms trigger optical line protection switching?

When you configure the Layer 2 attribute of the Ethernet, you need to set the Default VLAN ID and VLAN Priority of the untagged frame when the TAC ID is set to Access or Hybrid.

When many alarms are reported at the same time, the alarm handling priority is as follows: Handle alarms according to the priorities of equipment alarms (such as BUS_ERR, HARD_ERR, and COMM_FAIL), optical-layer LOS, electrical-layer OTUk_LOF, ODUk_SSF, and protection switching.