You have documents in Azure Blob Storage. You want to configure an Azure AI Search indexer to incremental-index only newly added or modified documents during subsequent runs. What is the prerequisite for this?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: Enable change tracking on the storage account (e.g., using metadata storage_metadata_modify_timestamp)

Search indexers use change detection policies to identify updated data. For Azure Blob Storage, this is done automatically using the native blob modification timestamps. The indexe...

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Real Exam ScenarioAzure AI Search (Indexing)

You have documents in Azure Blob Storage. You want to configure an Azure AI Search indexer to incremental-index only newly added or modified documents during subsequent runs. What is the prerequisite for this?

โœ“ Correct Answer & ExplanationAzure AI Search (Indexing)

Correct Answer

Enable change tracking on the storage account (e.g., using metadata storage_metadata_modify_timestamp)

Why This Answer Is Correct

Search indexers use change detection policies to identify updated data. For Azure Blob Storage, this is done automatically using the native blob modification timestamps. The indexer tracks high-water marks to index only changed blobs.

๐Ÿ“š What This Question Tests

This question evaluates your knowledge of Azure AI Search (Indexing) โ€” a core concept tested in Microsoft Certified: Azure AI Engineer Associate (AI-102). Understanding Azure AI Search (Indexing) is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.