CCNA Routing and Switching 200-125 Official Cert Guide - Chapter 2

B. forwarding, blocking

STP prevents loops by placing each switch port in either a __________ state or a __________ state. A. listening, learning B. forwarding, blocking C. listening, blocking D. learning, forwarding

A. forwarding, blocking

The process used by STP, sometimes called the spanning-tree algorithm (STA), chooses the interfaces that should be placed into a __________ state. For any interfaces not chosen to be in this state, STP places the interfaces in a __________ state. A. forwarding, blocking B. listening, blocking C. blocking, learning D. learning, forwarding

STP convergence

The term __________ refers to the process by which the switches collectively realize that something has changed in the LAN topology and determine whether they need to change which ports block and which ports forward.