CCSP Cloud Platform and Infrastructure Security Practice Question
This CCSP practice question tests your understanding of cloud platform and infrastructure security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company's security policy requires that all data stored in the cloud must be encrypted at rest. The cloud provider offers server-side encryption with either cloud-managed keys or customer-managed keys (CMK). Which additional control should the company implement to ensure that the CMK is not compromised and that access is auditable?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable automatic key rotation and configure detailed audit logging for the key management service.
Option A is correct because enabling automatic key rotation reduces the risk of key compromise by limiting the exposure window of any single key, while detailed audit logging for the key management service (e.g., AWS CloudTrail for KMS, Azure Monitor for Key Vault) provides an immutable record of all key usage and administrative actions. This combination ensures that even if a CMK is exposed, the window of vulnerability is minimized, and any unauthorized access or misuse is detectable through logs. Without these controls, the customer-managed key could remain static for long periods, increasing risk, and access events would not be auditable, violating the policy requirement.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Enable automatic key rotation and configure detailed audit logging for the key management service.
Why this is correct
Key rotation and audit logs are essential controls for CMK security.
Related concept
Read the scenario before looking for a memorised answer.
✗
Implement a VPN for all management traffic to the cloud provider's API.
Why it's wrong here
A VPN protects management traffic but does not provide key rotation or auditing.
✗
Enable multi-factor authentication (MFA) for all cloud console users.
Why it's wrong here
MFA reduces unauthorized access but does not directly protect the CMK.
✗
Use encryption in transit (TLS) for all data transfers to and from the cloud.
Why it's wrong here
This protects data in transit, not the key itself.
Common exam traps
Common exam trap: answer the scenario, not the keyword
ISC2 often tests the distinction between controls that protect the key itself (rotation and auditing) versus controls that protect the channel or user access (VPN, MFA, TLS), leading candidates to confuse network or identity safeguards with key management safeguards.
Detailed technical explanation
How to think about this question
Automatic key rotation in services like AWS KMS or Azure Key Vault creates new cryptographic material for the CMK at defined intervals (e.g., annually) while retaining the old material for decryption of existing data, ensuring backward compatibility. Audit logging captures every API call to the key management service, including key creation, deletion, rotation, and decryption requests, with fields like caller identity, source IP, and timestamp; this is critical for compliance frameworks such as PCI DSS or SOC 2 that require monitoring of cryptographic key access. In a real-world scenario, if a CMK is leaked via a misconfigured IAM policy, audit logs would reveal the unauthorized decryption attempts, and rotation would invalidate the leaked key for future encryption operations.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Cloud Platform and Infrastructure Security — This question tests Cloud Platform and Infrastructure Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable automatic key rotation and configure detailed audit logging for the key management service. — Option A is correct because enabling automatic key rotation reduces the risk of key compromise by limiting the exposure window of any single key, while detailed audit logging for the key management service (e.g., AWS CloudTrail for KMS, Azure Monitor for Key Vault) provides an immutable record of all key usage and administrative actions. This combination ensures that even if a CMK is exposed, the window of vulnerability is minimized, and any unauthorized access or misuse is detectable through logs. Without these controls, the customer-managed key could remain static for long periods, increasing risk, and access events would not be auditable, violating the policy requirement.
What should I do if I get this CCSP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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