Designing Cisco Data Center Infrastructure (DCID) — Question 204

The network engineering team at a large corporation operates a critical data center with stringent business requirements for network reliability and high availability. EIGRP is used as an interior routing protocol. The team is planning to implement a robust new redundancy strategy that minimizes downtime and maximizes network uptime. According to the requirements, business services can tolerate 3 seconds for failover performance. The solution must be based on RFC 2281. Which action must the team take as part of the implementation?

Answer options

• A. Implement HSRP to provide gateway redundancy and failover.
• B. Implement EIGRP with equal-cost multipath routing to provide load balancing.
• C. Implement VRRP to provide Layer 3 gateway redundancy.
• D. Implement GLBP to distribute traffic across multiple gateways to provide load sharing.

Correct answer: C

Explanation

The correct answer is C, as VRRP (Virtual Router Redundancy Protocol) provides a reliable Layer 3 gateway redundancy solution that can meet the failover requirements specified. HSRP (A) and GLBP (D) are also redundancy protocols, but the question specifically requests a solution that adheres to RFC 2281, which relates to VRRP. EIGRP with equal-cost multipath routing (B) is focused on load balancing rather than redundancy, which does not fulfill the primary requirement of the question.