CCNA: Cisco Certified Network Associate — Question 216

Which type does a port become when it receives the best BPDU on a bridge?

Answer options

• A. The designated port
• B. The backup port
• C. The alternate port
• D. The root port

Correct answer: D

Explanation

The root port is the port on a bridge that has the lowest cost path to the root bridge, making it the most efficient connection. The designated port is used to forward traffic towards the root bridge, while the backup and alternate ports serve different roles in redundancy and do not have the lowest cost path.