Designing Cisco Data Center Infrastructure (DCID, legacy) — Question 34

Which two technologies can overcome the link blocking feature that STP implements to ensure a loop-free topology? (Choose two.)

Answer options

• A. vPC
• B. ISSU
• C. MEC
• D. NX-OS HA
• E. GLBP

Correct answer: A, C

Explanation

vPC (Virtual Port Channel) and MEC (Multi-Chassis EtherChannel) are designed to work around the limitations imposed by STP, allowing for active-active links and preventing loops. In contrast, ISSU, NX-OS HA, and GLBP do not provide the same capability to circumvent STP's link blocking feature.