AZ-204 Develop Azure compute solutions Practice Question
This AZ-204 practice question tests your understanding of develop azure compute solutions. 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.
You deploy a container to Azure Container Instances. The container needs to persist data when it restarts. You mount an Azure Files share to a directory inside the container. Which volume type is this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
azureFile
Option C is correct because Azure Container Instances supports mounting an Azure Files share as a volume to persist data across container restarts. The `azureFile` volume type references a pre-created Azure storage account and file share, which is mounted into the container's filesystem using SMB 3.0 protocol. This ensures data survives container crashes or restarts, as it is stored externally in Azure Files.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
emptyDir
Why it's wrong here
Incorrect. emptyDir volumes are ephemeral and data is lost when the container restarts.
✗
gitRepo
Why it's wrong here
Incorrect. gitRepo volumes clone a git repository at container startup but do not provide persistent storage.
✓
azureFile
Why this is correct
Correct. azureFile volume mounts an Azure Files share, which persists data across container restarts.
Related concept
Read the scenario before looking for a memorised answer.
✗
secret
Why it's wrong here
Incorrect. secret volumes are used to inject sensitive data into containers and do not provide general-purpose persistent storage.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse `emptyDir` with persistent storage because it is commonly used in Kubernetes for temporary data, but in Azure Container Instances, `emptyDir` does not survive container restarts, whereas `azureFile` is the correct choice for persistence.
Detailed technical explanation
How to think about this question
Under the hood, Azure Container Instances mounts the Azure Files share using the SMB 3.0 protocol, which requires the container to have the `mount` capability and the Azure storage account key or SAS token. The mount is performed at container startup, and the container's identity must have access to the storage account. A subtle behavior is that the Azure Files share must be in the same region as the container group to minimize latency, and the container must be running on a Linux-based host (Windows containers also support Azure Files but with different SMB version requirements).
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.
TExam Day Tips
→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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Develop Azure compute solutions — This question tests Develop Azure compute solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: azureFile — Option C is correct because Azure Container Instances supports mounting an Azure Files share as a volume to persist data across container restarts. The `azureFile` volume type references a pre-created Azure storage account and file share, which is mounted into the container's filesystem using SMB 3.0 protocol. This ensures data survives container crashes or restarts, as it is stored externally in Azure Files.
What should I do if I get this AZ-204 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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