Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A company stores customer documents in Azure Blob Storage. The business requires the data to stay available if one availability zone in the region has an outage. Which redundancy option should the administrator choose?
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 keeps multiple copies in one datacenter, which does not protect against a zone outage.
B
Best answer
Zone-redundant storage (ZRS)
ZRS keeps synchronous copies across multiple availability zones in the same region, which helps the storage remain available during a single-zone failure.
C
Distractor review
Geo-redundant storage (GRS)
GRS replicates to a secondary region, but the question asks specifically about resilience to one zone outage.
D
Distractor review
Read-access geo-redundant storage (RA-GRS)
RA-GRS adds read access to the secondary region, but the key requirement here is zone-level availability in one 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 route table contains these entries: 10.0.0.0/8 with next hop Virtual appliance, and 10.1.1.0/24 with next hop Virtual network gateway. Which next hop will Azure use for traffic to 10.1.1.5?
Question 2
You are deploying a stateless web application on Azure virtual machines. The solution must automatically add and remove instances based on CPU demand and allow all instances to be managed as one logical group. Which Azure compute feature should you deploy?
Question 3
You are deploying a Windows Server VM for an internal app. The VM must support Secure Boot and vTPM later, its OS disk must survive host moves, and the team wants the lowest-cost managed disk tier that still behaves like a normal writable OS disk. Which two choices should you make? Select two.
Question 4
You need to deploy several identical virtual machines and ensure that the failure of a single Azure host does not affect all of them. Which feature should you use?
Question 5
You need to connect VNet-Hub and VNet-Spoke so that resources in both virtual networks can communicate privately over the Microsoft backbone. Both virtual networks are in the same region. What should you configure?
Question 6
You need to create a storage account that provides the lowest-cost redundant storage for non-critical data and only needs protection against local disk or server failure within a single datacenter. Which redundancy option should you choose?
FAQ
Questions learners often ask
What does this AZ-104 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Zone-redundant storage (ZRS) — Zone-redundant storage is the best choice when the requirement is to keep data available during a failure in one availability zone. ZRS stores copies across multiple zones within the same region, so a single-zone outage does not remove all copies at once. This is a common fit for business data that must remain online within a region, but does not require replication to another geographic region. Why others are wrong: LRS protects only against disk or server issues inside one datacenter, not a zone-wide outage. GRS and RA-GRS protect against a regional disaster by replicating to another region, but that is more than the requirement asks for and does not directly address zone availability within the primary region.
What should I do if I get this AZ-104 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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