Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company uses Azure Blob Storage to store archival backups of financial records. The company requires that the data is protected against a complete regional outage by replicating it to another Azure region. However, they do not need to access the replicated copy unless the primary region fails. The company wants to minimize storage costs while meeting this requirement. Which type of storage replication 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
Distractor review
Locally redundant storage (LRS)
LRS replicates data three times within a single data center in the primary region. This protects against server rack and drive failures but does not protect against a regional outage, so it does not meet the requirement.
B
Best answer
Geo-redundant storage (GRS)
GRS replicates data asynchronously to a paired secondary region. It provides protection against a complete regional outage without offering read access to the secondary copy, which keeps costs lower than RA-GRS. This meets the company's requirement.
C
Distractor review
Zone-redundant storage (ZRS)
ZRS replicates data synchronously across three Azure availability zones within the primary region. It protects against a zone failure but not against a regional outage, so it does not meet the requirement.
D
Distractor review
Read-access geo-redundant storage (RA-GRS)
RA-GRS replicates to a secondary region like GRS, but it also provides read access to the secondary copy. This incurs additional cost (due to the read access functionality). Since the company does not need read access unless the primary fails, GRS is the more cost-effective option.
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: Geo-redundant storage (GRS) — This question tests your knowledge of Azure Storage replication options and their trade-offs. Geo-redundant storage (GRS) replicates data asynchronously to a paired secondary region, providing protection against a regional disaster. It does not provide read access to the secondary copy during normal operations, which keeps costs lower than RA-GRS. Locally redundant storage (LRS) replicates within a single data center, offering no regional protection. Zone-redundant storage (ZRS) protects within a region across availability zones but does not cross regions. Read-access geo-redundant storage (RA-GRS) is similar to GRS but adds read access to the secondary copy, increasing cost unnecessarily if reads are not required. Therefore, GRS is the correct choice.
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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