VCDX-DCV Certified Design Expert - Data Center Virtualization Practice Questions
Prepare for VCDX-DCV with more than an answer.
- Level
- Expert (Highest Level)
- Valid for
- Yearly certification version cycle (e.g., 2024 certification replaces 2023)
Domains covered on the exam 7
- Customer Requirements20%
- Solution Architecture25%
- Engineering Specifications20%
- Implementation Guidance15%
- Risk Management10%
- Technical Communication5%
- Interactive Design Exercise5%
- 1
You are designing a Logical Network architecture for a vSphere 8 environment. The customer requires that vMotion traffic be isolated and capable of utilizing multiple physical uplinks simultaneously to maximize throughput during large-scale migrations. Which design decision best satisfies this?
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Correct answer: A
Multi-NIC vMotion allows a single vMotion operation to stripe data across multiple physical NICs. This is achieved by creating multiple vmkernel ports (e.g., vmk1, vmk2) and assigning them to the same subnet but different active uplinks. This aggregates bandwidth for vMotion.
- 2
A customer is deploying a mission-critical SQL cluster. They require that the application remains available even if an entire rack fails. You have 4 racks available in a single data center. Which vSphere design decision addresses this availability requirement?
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Correct answer: D
If using vSAN, Fault Domains can be configured to represent racks, ensuring data is mirrored across racks. For compute, VM-VM Anti-Affinity rules ensure the SQL nodes do not reside on the same host; combined with 'Must run on hosts in group' (Host Groups representing racks), one can separate them. However, standard Anti-Affinity is the primary mechanism to separate VMs. In a vSAN context, Fault Domains is the correct terminology for rack awareness.
- 3
Review the following vCenter HA architecture diagram. Which specific network requirement is critical for the vCenter HA network (the link between Active, Passive, and Witness nodes) to function correctly with a latency below 10ms?
graph TB subgraph Management_Cluster Active[vCenter Active] |vCenter HA Network| Passive[vCenter Passive] Active |vCenter HA Network| Witness[vCenter Witness] Passive |vCenter HA Network| Witness endShow answer details
Correct answer: D
vCenter HA requires a dedicated vNIC (NIC1) for the HA heartbeat and replication traffic. It cannot share the primary Management interface (NIC0) IP, although it can share the same subnet/portgroup if distinct IPs are used. The separation of traffic function is the key architectural requirement.
- 4
During a requirements gathering workshop for a financial institution, the CISO states that all data at rest must be encrypted using FIPS 140-2 validated modules. The Infrastructure Director mentions that the current storage array does not support native encryption but cannot be replaced due to budget constraints. How should this requirement be classified in the design documentation?
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Correct answer: A
This situation represents a conflict between a business requirement (encryption) and a constraint (budget/legacy hardware). In VCDX methodology, the inability to replace hardware is a hard constraint. The design must satisfy the requirement within this constraint, likely by implementing vSphere VM Encryption or Guest OS encryption, rather than array-based encryption.
- 5
An architect is designing a vSphere 8.0 solution. The customer requires a Recovery Point Objective (RPO) of 5 minutes for their Tier 1 database workloads. The primary and secondary sites are connected via a WAN link with 100ms round-trip latency. Which replication technology is the most appropriate architectural choice to meet this requirement?
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Correct answer: B
vSphere Replication can support RPOs as low as 5 minutes. Given the 100ms latency, synchronous replication (like vSAN Stretched Cluster) is not viable as it generally requires <5ms latency. vSphere Replication is asynchronous and suitable for this RPO and latency profile.
- 6
A customer requests a design for a new virtual desktop infrastructure (VDI). They state, 'We expect to grow by 20% annually.' However, they cannot provide historical data or a funded budget for expansion. How should the architect document this in the design?
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Correct answer: B
Since the budget is not currently funded/guaranteed, the design must proceed based on the Assumption that the customer will secure funding to meet their stated growth requirement when the time comes. This protects the architect if future expansion fails due to lack of funds.
