easyMultiple ChoiceObjective-mapped
CV0-004 Practice Question: A cloud architect is designing a solution to…
A cloud architect is designing a solution to ensure that data at rest in an object storage bucket is encrypted. The company requires that the encryption keys are managed by an on-premises hardware security module (HSM) to maintain control. Which encryption approach should the architect choose?
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
✓
Client-side encryption using a local library.
Client-side encryption allows the customer to encrypt data before sending it to the cloud, using keys managed on-premises. Server-side encryption with cloud-managed keys would have the cloud provider control the keys, negating the requirement. SSE-C allows the customer to provide their own encryption keys, but the keys must be sent to the cloud each time, which may not satisfy the on-premises management requirement. Client-side encryption ensures data is encrypted before leaving the on-premises environment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Server-side encryption with cloud-managed keys (SSE).
Why it's wrong here
Cloud-managed keys are controlled by the cloud provider, not the customer's on-premises HSM.
- ✓
Client-side encryption using a local library.
Why this is correct
Client-side encryption allows the customer to encrypt data with keys stored on-premises before transmission, maintaining full control.
- ✗
Disable encryption at rest to rely on network encryption.
Why it's wrong here
This does not protect data at rest in the storage bucket.
- ✗
Server-side encryption with customer-provided keys (SSE-C).
Why it's wrong here
SSE-C requires sending the keys to the cloud provider for each operation, which may not meet the on-premises management requirement.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.