What is the Link Layer Discovery Protocol?

Refer to the exhibit

What is true regarding VLAN 50 according to the diagram above?

What connectivity commands are available on AOS-CX switches? (Choose two.)

Core(config)# user admin password
Core(config)# interface mgmt
Core(config-if-mgmt)# ip static 10.254.16.89/22
Core(config-if-mgmt)# default-gateway 10.254.19.129
Core(config)# ssh server vrf mgmt
Core(config)# https-server vrf mgmt
You are tasked with configuring the Core switch to be managed by NetEdit. Currently, the Core switch is at factory-default settings.
Which two steps are missing? (Choose two.)

Refer to the exhibit.

The Aruba 8400 in the exhibit is member 2 of a VSX stack.
Which command will enter the interface sub configuration mode for the port, indicated by the orange square?