The correct answer is to allow the search service’s IP address in the storage account firewall and use a managed identity for authentication. This combination works because the managed identity eliminates the need for shared access keys or connection strings, while the IP rule ensures the indexer’s outbound traffic is permitted through the storage firewall, even when a private endpoint is not used for the storage account itself. On the Microsoft Azure AI Engineer Associate AI-102 exam, this scenario tests your understanding of securing sensitive data pipelines by layering network controls with identity-based access, often appearing as a trap where candidates mistakenly choose shared access keys or disabling the firewall entirely. A common pitfall is forgetting that the search service’s IP must be explicitly allowed, as managed identity alone does not bypass network restrictions. Remember the memory tip: “Managed identity for auth, IP rule for path”—the identity handles who you are, and the firewall rule handles where you can come from.
AI-102 Practice Question: Implement knowledge mining and information extraction solutions
This AI-102 practice question tests your understanding of implement knowledge mining and information extraction 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.
Which TWO actions should you take to ensure that an Azure AI Search indexer can access data from an Azure Storage account that contains sensitive data?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the search service to use a system-assigned managed identity
Option A is correct because using managed identity eliminates the need for keys. Option C is correct because allowing the search service's IP in the firewall ensures access. Option B is wrong because shared access keys are less secure. Option D is wrong because disabling firewall is insecure. Option E is wrong because the search service connects to Azure Storage, not the other way.
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
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Create a private endpoint in the storage account for the search service
Why it's wrong here
Private endpoint is for inbound connections to search, not outbound.
✗
Use a shared access key (SAS) in the data source definition
Why it's wrong here
SAS keys are less secure and can expire.
✓
Configure the search service to use a system-assigned managed identity
Why this is correct
Managed identity provides secure access without keys.
Related concept
Static NAT maps one inside address to one outside address.
✓
Allow the search service's IP address in the storage account firewall
Why this is correct
IP restriction allows access while blocking others.
Related concept
Static NAT maps one inside address to one outside address.
Common exam trap: NAT rules depend on direction and matching traffic
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
How to think about this question
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.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
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
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.
What to study next
Got this wrong? Here's your next step.
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 AI-102 NAT questions on configuration and troubleshooting.
Implement knowledge mining and information extraction solutions — This question tests Implement knowledge mining and information extraction solutions — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Configure the search service to use a system-assigned managed identity — Option A is correct because using managed identity eliminates the need for keys. Option C is correct because allowing the search service's IP in the firewall ensures access. Option B is wrong because shared access keys are less secure. Option D is wrong because disabling firewall is insecure. Option E is wrong because the search service connects to Azure Storage, not the other way.
What should I do if I get this AI-102 question wrong?
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 AI-102 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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