Quick Answer
The answer is deploying across multiple Availability Zones within a single region, using regional load balancers. This strategy satisfies data residency requirements because all application tiers—web, application, and database—remain inside the same geographic boundary, while high availability is achieved through fault isolation between AZs; if one zone fails, the regional load balancer automatically reroutes traffic to healthy instances in other zones without ever leaving the region. On the CompTIA Cloud+ CV0-004 exam, this scenario tests your understanding that data residency is about geographic location, not just redundancy—a common trap is confusing multi-region deployments (which violate residency) with multi-AZ deployments (which preserve it). Remember the mnemonic: “Same region, different zones—data stays home, uptime never roams.”
This CV0-004 practice question tests your understanding of deployment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A cloud architect is designing a deployment for a multi-tier application that must meet compliance requirements for data residency. The application consists of a web tier, application tier, and database tier. Which TWO deployment strategies should the architect consider to ensure data remains in a specific geographic region while maintaining high availability?
Set up a VPN to a neighboring region
Why wrong: Would route data outside the required region.
Deploy across multiple availability zones in the same region
Keeps data in region and provides HA.
Deploy in a single availability zone
Why wrong: Single point of failure, not highly available.
Use regional load balancers
Keeps traffic within the region.
Deploy across multiple regions
Why wrong: May violate data residency requirements.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Deploy across multiple availability zones in the same region
Deploying across multiple Availability Zones (AZs) within the same region ensures that application components remain within the geographic boundary required for data residency, while providing high availability through fault isolation. If one AZ fails, traffic is automatically routed to healthy instances in other AZs, maintaining uptime without leaving the region.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Set up a VPN to a neighboring region
Why it's wrong here
Would route data outside the required region.
Deploy across multiple availability zones in the same region
Why this is correct
Keeps data in region and provides HA.
Related concept
Read the scenario before looking for a memorised answer.
Deploy in a single availability zone
Why it's wrong here
Single point of failure, not highly available.
Use regional load balancers
Why this is correct
Keeps traffic within the region.
Related concept
Read the scenario before looking for a memorised answer.
Deploy across multiple regions
Why it's wrong here
May violate data residency requirements.
Common exam traps
CompTIA often tests the distinction between 'high availability' and 'disaster recovery' — candidates mistakenly choose multi-region deployment for high availability, but that violates data residency, while the correct answer uses multiple AZs within a single region to satisfy both constraints.
Detailed technical explanation
Availability Zones within a region are physically separate data centers with independent power, cooling, and networking, connected by low-latency fiber. Regional load balancers (e.g., AWS ALB or Azure Load Balancer) distribute traffic across AZs in the same region, enabling automatic failover and session persistence without crossing regional boundaries. This architecture is commonly used for regulated workloads like healthcare or finance where data must stay within a country or state.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
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FAQ
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
The correct answer is: Deploy across multiple availability zones in the same region — Deploying across multiple Availability Zones (AZs) within the same region ensures that application components remain within the geographic boundary required for data residency, while providing high availability through fault isolation. If one AZ fails, traffic is automatically routed to healthy instances in other AZs, maintaining uptime without leaving the region.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CV0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CV0-004 exam.
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