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PROFESSIONAL-CLOUD-SECURITY-ENGINEER · Question #374

Your global defense company is migrating top-secret classified data to BigQuery and Cloud Storage. National security regulations demand that master encryption key material never leaves the…

The correct answer is D. Configure Cloud External Key Manager (Cloud EKM) for the BigQuery datasets and Cloud Storage. Cloud External Key Manager (Cloud EKM) allows encryption keys to remain in your on-premises HSMs, ensuring that key material never leaves your controlled environment. By integrating EKM with BigQuery and Cloud Storage, your organization retains exclusive control over key access…

Submitted by rania.sa· Apr 18, 2026Ensuring data protection

Question

Your global defense company is migrating top-secret classified data to BigQuery and Cloud Storage. National security regulations demand that master encryption key material never leaves the accredited on-premises cryptographic hardware. You must retain the unilateral ability to revoke data access, independent of any cloud provider. What should you do?

Options

  • AUse customer-managed encryption keys (CMEKs) for the BigQuery datasets and Cloud Storage
  • BUse customer-supplied encryption keys (CSEKs) by providing your own encryption keys with each
  • CImport existing on-premises master encryption keys into Cloud Key Management Service (Cloud
  • DConfigure Cloud External Key Manager (Cloud EKM) for the BigQuery datasets and Cloud Storage

How the community answered

(44 responses)
  • A
    5% (2)
  • B
    7% (3)
  • C
    20% (9)
  • D
    68% (30)

Explanation

Cloud External Key Manager (Cloud EKM) allows encryption keys to remain in your on-premises HSMs, ensuring that key material never leaves your controlled environment. By integrating EKM with BigQuery and Cloud Storage, your organization retains exclusive control over key access and revocation, satisfying national security and compliance requirements for handling top-secret classified data.

Topics

#Cloud EKM#Data Encryption#Key Management#Data Sovereignty

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