easyMultiple Choice
CCSP Practice Question: A cloud security team is implementing a key…
A cloud security team is implementing a key management system for encrypting data in a multi-cloud environment. They need to ensure that keys are available even if one cloud provider experiences an outage. What is the BEST approach?
⚠ Common exam trap
ISC2 often tests the misconception that storing keys with data or using a single provider's KMS is acceptable for availability, but the trap here is that candidates overlook the need for geographic and provider-level redundancy to ensure continuous key access during an outage.
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
✓
Implement a multi-cloud key management system that replicates keys across providers
A multi-cloud key management system that replicates keys across providers ensures high availability and fault tolerance. If one cloud provider experiences an outage, the keys remain accessible from another provider, preventing data decryption failures. This approach aligns with the principle of avoiding a single point of failure in key distribution, which is critical for maintaining continuous data access in a multi-cloud architecture.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Implement a multi-cloud key management system that replicates keys across providers
Why this is correct
Replicating keys across multiple providers removes the single-provider dependency, so an outage at one cloud does not render encrypted data inaccessible. This directly satisfies the availability constraint, unlike single-provider key stores, which fail when that provider's key service becomes unavailable.
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Use a single cloud provider's key management service
Why it's wrong here
A single provider's key management service ties key availability to that provider, so its outage makes keys unreachable across the multi-cloud estate. This suits organisations standardising on one cloud where provider SLAs and regional replication already satisfy availability needs.
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Store encryption keys in the same storage as encrypted data
Why it's wrong here
Co-locating keys with ciphertext means a provider outage or storage compromise removes both simultaneously, defeating the availability requirement. This pattern suits self-contained encrypted archives where the storage platform itself provides durability and no cross-provider resilience is needed.
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Use hardware security modules (HSMs) in one data center
Why it's wrong here
HSMs confined to one data centre create a single site failure domain, so a provider outage affecting that facility makes keys unavailable. This suits on-premises or single-region deployments where latency and physical control matter more than multi-cloud survivability.
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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.