This DP-900 practice question tests your understanding of identify considerations for relational data on azure. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 multinational corporation has Azure SQL Databases deployed in multiple Azure regions. They need to ensure that a failover to a secondary region happens automatically and with minimal data loss if the primary region goes down. Which deployment option should they use?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Active geo-replication with auto-failover groups
Auto-failover groups provide automatic, cross-region failover.
Zone-redundant database
Why wrong: Zone redundancy protects within a region across zones.
Azure Traffic Manager with multiple databases
Why wrong: Traffic Manager routes traffic, not automatic database failover.
Locally redundant storage (LRS)
Why wrong: LRS protects within a single region.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Active geo-replication with auto-failover groups
Option D is correct because active geo-replication with auto-failover groups provides automatic failover across regions with RPO of 5 seconds. Option A is wrong because Azure SQL Database local redundancy protects within a region. Option B is wrong because Azure SQL Database zone redundancy protects within a region across zones. Option C is wrong because Azure Traffic Manager is for traffic routing, not database failover.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Active geo-replication with auto-failover groups
Why this is correct
Auto-failover groups provide automatic, cross-region failover.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
Zone-redundant database
Why it's wrong here
Zone redundancy protects within a region across zones.
Azure Traffic Manager with multiple databases
Why it's wrong here
Traffic Manager routes traffic, not automatic database failover.
Locally redundant storage (LRS)
Why it's wrong here
LRS protects within a single region.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-900 NAT questions on configuration and troubleshooting.
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FAQ
Identify considerations for relational data on Azure — This question tests Identify considerations for relational data on Azure — Static NAT maps one inside address to one outside address..
The correct answer is: Active geo-replication with auto-failover groups — Option D is correct because active geo-replication with auto-failover groups provides automatic failover across regions with RPO of 5 seconds. Option A is wrong because Azure SQL Database local redundancy protects within a region. Option B is wrong because Azure SQL Database zone redundancy protects within a region across zones. Option C is wrong because Azure Traffic Manager is for traffic routing, not database failover.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-900 NAT questions on configuration and troubleshooting.
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
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