CCDE: Cisco Certified Design Expert (Practical) — Question 105

Company XYZ asks for design recommendations for Layer 2 redundancy. The company wants to prioritize fast convergence and resiliency elements in the design.
Which two technologies are recommended? (Choose two.)

Answer options

• A. Use BPDU guard.
• B. Use UniDirectional Link Detection.
• C. Use root guard.
• D. Configure DHCP snooping on the switches.
• E. Design MLAG/MC-LAG into the network wherever possible.

Correct answer: B, E

Explanation

The correct choices are B and E because UniDirectional Link Detection helps in quickly identifying failed links to ensure fast convergence, while MLAG/MC-LAG provides redundancy and load balancing. The other options, such as BPDU guard, root guard, and DHCP snooping, do not directly contribute to improving convergence speed or redundancy in the same way.