JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2022) — Question 18

What is the purpose of STP BPDUs?

Answer options

• A. to exchange MAC addresses
• B. to determine the least cost path
• C. to determine the root-alternate port
• D. to determine the root bridge

Correct answer: B

Explanation

The correct answer is B because STP BPDUs (Bridge Protocol Data Units) are used to evaluate and select the least cost path for data transmission in a network. The other options are incorrect as they either refer to different functionalities or do not accurately represent the purpose of BPDUs.