Exam 3V0-12.26 Topic 1 Question 37 Discussion
Actual exam question for VMware's 3V0-12.26 exam
Question #: 37
Topic #: 1
Question #: 37
Topic #: 1
An architect has been engaged to design a new VMware Cloud Foundation (VCF) deployment for a customer that will provide platform-level high availability across three data centers to support their applications.
The customer has advised that there is high-bandwidth connectivity of 10 Gbps+ between the data centers, with less than 5 ms Round Trip Time (RTT) between each site, supporting a combination of Layer-2 and Layer-3 capabilities.
The customer has provided the following additional requirements:
* A mix of Tier-1 (mission critical), Tier-2 (business critical), and Tier-3 (business operational) applications.
* Tier-1 and Tier-2 applications require a Recovery Point Objective (RPO) of zero .
* Compliance with all data sovereignty regulations.
* Operational complexity must be reduced where possible.
* Maximum Recovery Time Objective (RTO) of 24 hours in the event of a regional failure.
Given this information, which design should be recommended for the customer?
The customer has advised that there is high-bandwidth connectivity of 10 Gbps+ between the data centers, with less than 5 ms Round Trip Time (RTT) between each site, supporting a combination of Layer-2 and Layer-3 capabilities.
The customer has provided the following additional requirements:
* A mix of Tier-1 (mission critical), Tier-2 (business critical), and Tier-3 (business operational) applications.
* Tier-1 and Tier-2 applications require a Recovery Point Objective (RPO) of zero .
* Compliance with all data sovereignty regulations.
* Operational complexity must be reduced where possible.
* Maximum Recovery Time Objective (RTO) of 24 hours in the event of a regional failure.
Given this information, which design should be recommended for the customer?
Suggested Answer: C Vote an answer
C is the best match because this blueprint combines metro-style availability inside the primary region with disaster recovery into an additional region .
Within the primary region, two sites can use stretched vSphere/vSAN clusters . Current VCF design guidance specifies that stretched designs require high-bandwidth connectivity and less than 5 ms RTT between the data availability zones. This enables synchronous storage replication, which is the architectural mechanism required to achieve RPO 0 for Tier-1 and Tier-2 workloads. Broadcom also documents that stretched-cluster designs can provide zero RPO because data is synchronously maintained across sites.
The additional data center can then operate as a separate regional VCF instance within the same Fleet. This provides geographic separation for regional disaster recovery and supports the stated 24-hour RTO , while avoiding the operational complexity of stretching every site across every region.
A pure single-region multi-site design does not adequately address complete regional failure. Conversely, a generic multi-region design does not inherently provide the synchronous stretched-cluster architecture required for the Tier-1/Tier-2 zero-RPO requirement.
The VCF blueprint specifically described as "Multiple Sites in a Single Region plus Additional Region(s)" combines a stretched primary region with one or more standard remote regions. ( VMware TechDocs ) Study Guide References/Topics: VCF Design Blueprints; Multi-Site Single-Region Architecture; Additional Region Design; vSAN Stretched Clusters; RPO/RTO Design; Regional Disaster Recovery; Data Sovereignty; Fleet-Level Operations.
Within the primary region, two sites can use stretched vSphere/vSAN clusters . Current VCF design guidance specifies that stretched designs require high-bandwidth connectivity and less than 5 ms RTT between the data availability zones. This enables synchronous storage replication, which is the architectural mechanism required to achieve RPO 0 for Tier-1 and Tier-2 workloads. Broadcom also documents that stretched-cluster designs can provide zero RPO because data is synchronously maintained across sites.
The additional data center can then operate as a separate regional VCF instance within the same Fleet. This provides geographic separation for regional disaster recovery and supports the stated 24-hour RTO , while avoiding the operational complexity of stretching every site across every region.
A pure single-region multi-site design does not adequately address complete regional failure. Conversely, a generic multi-region design does not inherently provide the synchronous stretched-cluster architecture required for the Tier-1/Tier-2 zero-RPO requirement.
The VCF blueprint specifically described as "Multiple Sites in a Single Region plus Additional Region(s)" combines a stretched primary region with one or more standard remote regions. ( VMware TechDocs ) Study Guide References/Topics: VCF Design Blueprints; Multi-Site Single-Region Architecture; Additional Region Design; vSAN Stretched Clusters; RPO/RTO Design; Regional Disaster Recovery; Data Sovereignty; Fleet-Level Operations.
by Aaron at Oct 27, 2026, 03:56 PM
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