This CS0-003 practice question tests your understanding of security operations. 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. A key principle to apply: cloud audit logs record API calls made to cloud services.. 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 cloud tenant shows an unusual spike in IAM policy changes, access key creation, and failed console logons from a new country. Which telemetry set gives the strongest evidence for control-plane compromise? In the root-cause analysis phase, Which finding would most directly explain the activity?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cloud audit logs for identity, policy, and key-management API calls
Option C is correct because cloud audit logs (e.g., AWS CloudTrail, Azure Monitor, GCP Cloud Audit Logs) capture control-plane API calls such as IAM policy changes, access key creation, and failed console logons. These logs directly record identity and access management operations, providing the strongest evidence of control-plane compromise by showing who made the changes, from which source IP, and at what time.
Key principle: Cloud audit logs record API calls made to cloud services.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Web server access logs from the public website
Why it's wrong here
Web logs do not prove IAM policy or key-management activity.
✗
Endpoint antivirus quarantine reports only
Why it's wrong here
Endpoint reports may be useful later but do not directly explain cloud control-plane changes.
✓
Cloud audit logs for identity, policy, and key-management API calls
Why this is correct
Control-plane attacks are best investigated through authoritative audit events that record who changed identity and access configuration.
Related concept
Cloud audit logs record API calls made to cloud services.
✗
Packet captures from user laptops only
Why it's wrong here
Network captures may not show cloud API intent or identity changes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between data-plane logs (e.g., web server logs) and control-plane logs (e.g., cloud audit logs), tricking candidates into choosing web logs because they seem more familiar, even though they cannot capture IAM or key management events.
Trap categories for this question
Command / output trap
Network captures may not show cloud API intent or identity changes.
Detailed technical explanation
How to think about this question
Control-plane operations in cloud environments are authenticated via IAM roles and policies, and audit logs capture every API call to services like AWS IAM, KMS, and STS. A spike in failed console logons from a new country combined with policy changes suggests credential theft or privilege escalation, often involving the use of stolen access keys or temporary credentials. Real-world attacks like the Capital One breach were detected via CloudTrail logs showing unusual API calls from unexpected IPs.
KKey Concepts to Remember
Cloud audit logs record API calls made to cloud services.
Identity and Access Management (IAM) changes are logged as control-plane events.
Key management operations (e.g., key creation) are critical control-plane activities.
Cloud audit logs provide 'who, what, when, where' for cloud resource modifications.
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
Cloud audit logs record API calls made to cloud services.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CS0-003 question in full detail.
Security Operations — This question tests Security Operations — Cloud audit logs record API calls made to cloud services..
What is the correct answer to this question?
The correct answer is: Cloud audit logs for identity, policy, and key-management API calls — Option C is correct because cloud audit logs (e.g., AWS CloudTrail, Azure Monitor, GCP Cloud Audit Logs) capture control-plane API calls such as IAM policy changes, access key creation, and failed console logons. These logs directly record identity and access management operations, providing the strongest evidence of control-plane compromise by showing who made the changes, from which source IP, and at what time.
What should I do if I get this CS0-003 question wrong?
Review cloud audit logs record API calls made to cloud services., then practise related CS0-003 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Cloud audit logs record API calls made to cloud services.
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