When a switch receives a frame for a known destination MAC address, how is the frame handed?

What is a function of an endpoint?

Refer to the exhibit.

For security reasons, automatic neighbor discovery must be disabled on the R5 Gi0/1 interface. These tasks must be completed:
* Disable all neighbor discovery methods on R5 interface GiO/1.
* Permit neighbor discovery on R5 interface GiO/2.
* Verify there are no dynamically learned neighbors on R5 interface Gi0/1.
* Display the IP address of R6*s interface Gi0/2.
Which configuration must be used?

Refer to the exhibit.

Which configuration establishes a Layer 2 LACP EtherChannel when applied to both switches?

What is a reason to implement IPv4 private addressing?