Which of the following are the four possible states of spanning tree?
A. Listening, learning, blocking, broadcasting
B. Listening, learning, blocking, connecting
C. Discovering, learning, blocking, connecting
D. Listening, learning, blocking, forwarding
Answer:D
Which of the following are the four possible states of spanning tree?
A. Listening, learning, blocking, broadcasting
 B. Listening, learning, blocking, connecting
 C. Discovering, learning, blocking, connecting
 D. Listening, learning, blocking, forwarding
