What two things occur when an RSTP edge port receives a BPDU? (Choose two.)

A.
The port immediately transitions to the forwarding state.

B.
The switch generates a Topology Change Notification BPDU.

C.
The port immediately transitions to the err-disable state.

D.
The port becomes a normal STP switch port.

Explanation:
Edge ports are used to connect Workstations to a switch. There are not supposed to receive STP
BPDU. When BPDU comes to edge port the port becomes a normal STP switch port and generate
TCN BPDU.
Reference:
CCNP Self-Study CCNP BCMSN Official Exam Certification Guide, Fourth Edition, Chapter 10:
Protecting the Spanning Tree Protocol Topology, p. 248.