CCDE: Cisco Certified Design Expert (Written) — Question 12

While reviewing an existing network design, you are discussing the characteristics of different STP versions. Which protocol minimizes unicast flooding during
TCN in a Layer 2 switched network with many VLANs?

Answer options

• A. STP
• B. MST
• C. PVRSTP
• D. PVSTP+

Correct answer: D

Explanation

PVSTP+ is the correct answer because it allows for rapid convergence and minimizes unicast flooding during topology changes in a network with multiple VLANs. The other options, such as STP and MST, do not provide the same level of efficiency in handling VLANs and may lead to increased flooding during TCN events.