Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company stores critical financial data in Azure Blob Storage. The data must remain available even if an entire Azure region becomes unavailable. Additionally, the company needs the ability to read the data from the secondary region immediately during a regional outage, without waiting for Microsoft to initiate a failover. Which storage redundancy option should the company configure?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
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Locally Redundant Storage (LRS)
LRS replicates data three times within a single datacenter in a single region. It does not provide any protection against an entire regional outage, as all copies are lost if the datacenter or region fails.
B
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Geo-Redundant Storage (GRS)
GRS replicates data to a paired secondary region, but read access to the secondary region is not available unless Microsoft performs a failover. This does not meet the requirement for immediate read access during an outage.
C
Best answer
Read-Access Geo-Redundant Storage (RA-GRS)
RA-GRS replicates data to a secondary region and provides read-only access to the data in the secondary region at all times. This allows the company to continue reading data immediately during a regional outage, meeting both the availability and immediate read access requirements.
D
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Zone-Redundant Storage (ZRS)
ZRS replicates data synchronously across three availability zones within a single region. It protects against datacenter failures but not against a full regional outage, as all zones are in the same region.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer is building a serverless application that requires integration with an on-premises SQL Server database for real-time data processing. The on-premises network is connected to Azure via a site-to-site VPN. Which Azure service would allow the function to securely access the on-premises database without exposing it to the public internet?
Question 2
A solutions architect is designing a storage solution for a large media company. The company needs to store video files that are accessed infrequently but must be retained for several years for compliance. Which two Azure storage options meet these requirements? (Select two.)
Question 3
A company deploys a multi-tier application using Azure virtual machines. The web tier VMs must be evenly distributed across two distinct data centers within an Azure region to avoid a single point of failure from an infrastructure outage. Which Azure construct should they use to meet this requirement?
Question 4
A company wants to enforce a set of security policies across all their Azure subscriptions. They have created several individual policy definitions. Which Azure construct should they use to group these policies together and assign them as a single package?
Question 5
A company deploys a line-of-business application on an Azure virtual machine. The IT team wants to ensure the application remains secure. According to the shared responsibility model, which of the following security tasks is the sole responsibility of the customer (the company)?
Question 6
A company develops a web API that runs on Azure App Service. The development team wants to deploy a new version of the API to a staging environment, run integration tests against it, and then gradually shift production traffic to the new version. If any issues are detected, they want to immediately roll back to the previous version without redeploying. Which Azure App Service feature should the team use to meet these requirements?
FAQ
Questions learners often ask
What does this AZ-900 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Read-Access Geo-Redundant Storage (RA-GRS) — To ensure data availability during a complete regional outage and allow immediate read access from the secondary region, the company needs Read-Access Geo-Redundant Storage (RA-GRS). RA-GRS replicates data to a paired secondary region and provides read-only access to the data in the secondary region. Geo-Redundant Storage (GRS) also replicates to a secondary region but does not allow reading from the secondary region until a Microsoft-initiated failover occurs. Locally Redundant Storage (LRS) only replicates data within a single datacenter and cannot survive a regional outage. Zone-Redundant Storage (ZRS) replicates across availability zones within the same region and does not protect against a full region failure.
What should I do if I get this AZ-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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