This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. 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 web app needs to access Azure Key Vault secrets for database credentials. The app runs as a managed identity in Azure App Service. Which authentication method should be used to retrieve secrets without storing credentials in the app code?
Managed identity
Provides an identity automatically managed by Azure, no credentials stored.
Access key
Why wrong: Requires storing keys in app settings, not secure.
Client certificate
Why wrong: Adds certificate management overhead.
Shared access signature (SAS) token
Why wrong: SAS is for Azure Storage, not Key Vault.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Managed identity
Managed identity (option A) allows the app to authenticate to Azure services without storing credentials. Access keys (B) are not recommended. Client certificate (C) requires certificate management. SAS tokens (D) are for storage, not Key Vault.
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.
Managed identity
Why this is correct
Provides an identity automatically managed by Azure, no credentials stored.
Related concept
Static NAT maps one inside address to one outside address.
Access key
Why it's wrong here
Requires storing keys in app settings, not secure.
Client certificate
Why it's wrong here
Adds certificate management overhead.
Shared access signature (SAS) token
Why it's wrong here
SAS is for Azure Storage, not Key Vault.
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 AZ-204 NAT questions on configuration and troubleshooting.
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FAQ
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Static NAT maps one inside address to one outside address..
The correct answer is: Managed identity — Managed identity (option A) allows the app to authenticate to Azure services without storing credentials. Access keys (B) are not recommended. Client certificate (C) requires certificate management. SAS tokens (D) are for storage, not Key Vault.
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 AZ-204 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
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