2V0-41.24 Question 249
Select 2Your organization is deploying a Tier-0 and Tier-1 NSX-T topology in a multi-site architecture. The requirement is to ensure active-active failover with consistent routing across both sites, while maintaining high availability. Which of the following are supported configurations for Tier-0 and Tier-1 stretched topologies in this scenario?
- A
Tier-0 in Active-Active mode with stretched Tier-1 instances across sites
- B
Tier-0 in Active-Passive mode with stretched Tier-1 instances across sites
- C
Tier-0 in Active-Active mode with local (non-stretched) Tier-1 instances per site
- D
Tier-0 in Active-Passive mode with local (non-stretched) Tier-1 instances per site
- E
Tier-0 and Tier-1 both in Active-Active mode with a single logical instance across sites
Show answer and explanation
Correct answers: A, C
Explanation
In a multi-site architecture with NSX-T, Tier-0 in Active-Active mode can provide routing consistency and active-active failover across sites. Stretched Tier-1 topologies ensure consistency of services across the sites, while local Tier-1 instances provide site-specific independence. The configuration must align with the architectural requirements and supported NSX-T deployment models.
- A. Correct.
This is a supported configuration where the Tier-0 Gateway operates in Active-Active mode to provide active-active failover, and the Tier-1 Gateway instances are stretched across sites to ensure consistency and availability.
- B. Incorrect.
This configuration introduces limitations in failover behavior and is not typically recommended for active-active deployments in stretched topologies.
- C. Correct.
This is a supported configuration where the Tier-0 Gateway operates in Active-Active mode, and Tier-1 instances are deployed non-stretched (local to each site). This ensures site independence while still supporting active-active routing at the Tier-0 level.
- D. Incorrect.
This configuration is supported but is generally used in scenarios where Active-Passive behavior is acceptable. It does not meet the requirements for active-active failover as described in the scenario.
- E. Incorrect.
This configuration is not supported because both Tier-0 and Tier-1 cannot operate in a single logical instance across sites with active-active behavior due to architectural limitations.