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CCSP Practice Question: A multinational corporation operates across…
A multinational corporation operates across multiple cloud providers (AWS, Azure, GCP) and uses a variety of data storage services. They have a requirement to enforce a consistent encryption policy across all providers: all data at rest must be encrypted using a centrally managed key that is rotated every 90 days. The cloud security team is evaluating different key management solutions. They want to minimize operational overhead and avoid vendor lock-in. The team has experience with configuring cloud-native key management services (KMS) but is concerned about managing keys across different regions and providers. Which solution best meets the requirements?
⚠ Common exam trap
ISC2 often tests the misconception that cloud-native KMS services can be centrally managed by simply replicating policies or using an internal secrets manager as a root key, but the trap is that cloud KMS does not allow external key material to be used as a root key for automatic rotation across providers—only a third-party agnostic solution with BYOK can enforce consistent, centrally controlled rotation.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy a third-party cloud-agnostic key management solution that supports BYOK and integrates with all providers' KMS
A third-party cloud-agnostic key management solution (e.g., HashiCorp Vault, Thales CipherTrust) that supports Bring Your Own Key (BYOK) allows the organization to centrally manage and rotate a single root key every 90 days, while integrating with each provider's native KMS via external key stores (e.g., AWS KMS custom key store, Azure Key Vault managed HSM, GCP Cloud HSM). This minimizes operational overhead by avoiding manual per-provider policy replication and prevents vendor lock-in by decoupling key management from any single cloud provider's proprietary KMS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Deploy a third-party cloud-agnostic key management solution that supports BYOK and integrates with all providers' KMS
Why this is correct
Centralized policy management, consistent enforcement, and reduces vendor lock-in.
- ✗
Use each cloud provider's native KMS and create identical key policies manually
Why it's wrong here
Inconsistent and high overhead to maintain across providers and regions.
- ✗
Store the key in an internal secrets manager and configure each provider's KMS to use that key as a root key
Why it's wrong here
Each provider's KMS still manages its own key hierarchy; consistency is not guaranteed.
- ✗
Implement client-side encryption using a single master key stored in the application configuration
Why it's wrong here
Key distribution and rotation become major security risks.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCSP exam.