Designing Cisco Network Service Architectures (ARCH, legacy) — Question 11

A network engineer is designing a network that must incorporate active-active redundancy to eliminate disruption when a link failure occurs between the core and distribution layer. What two technologies will allow this? (Choose two.)

Answer options

• A. Equal Cost Multi-Path (ECMP)
• B. Rapid Spanning Tree Protocol Plus (RSTP+)
• C. Hot Standby Routing Protocol (HSRP)
• D. Rapid Spanning Tree Protocol (RSTP)
• E. Multichassis EtherChannel (MEC)

Correct answer: C, E

Explanation

The correct answers, C (Hot Standby Routing Protocol) and E (Multichassis EtherChannel), are both designed to provide redundancy and load balancing. HSRP allows multiple routers to work together as a single virtual router, ensuring high availability, while MEC enables multiple switches to operate as one logical switch, enhancing link utilization and redundancy. The other options either do not provide active-active redundancy or are not suitable for this specific requirement.