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RAN-DBDEA-00291
Ranvier · DBDEA

Exam DBDEA Topics: governance Difficulty: hard

Security policy requires rotating the AWS IAM role that backs the company's lakehouse storage every quarter. The role is attached to a Unity Catalog storage credential that several external locations and external tables depend on. The platform team must implement the rotation without recreating objects or interrupting nightly pipelines. Which approach meets the requirement?

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  1. A. Create a second storage credential, then drop and recreate every external location and table against it during a release window.
  2. B. Update the existing storage credential with the new IAM role, so external locations and tables keep referencing the same object.
  3. C. Pause all pipelines during a maintenance window, rotate the role in AWS, and wait for Unity Catalog to rediscover the credential.
  4. D. Create a new storage credential every quarter, because credentials are immutable once an external location references them.
Reveal answer

Correct answer: Update the existing storage credential with the new IAM role, so external locations and tables keep referencing the same object.

Reference: https://docs.databricks.com/aws/en/data-governance/unity-catalog/

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Official Answer (B): Update the existing storage credential with the new IAM role, so external locations and tables keep referencing the same object.

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