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 all API calls to the cloud control plane.. 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 evidence source phase, Which evidence source best supports or refutes the detection?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Control-plane operations in cloud environments are managed through APIs for identity (IAM), policy, and key management. Cloud audit logs (e.g., AWS CloudTrail, Azure Activity Log) capture every API call to these services, including who made the call, from which IP address, and what changes were made. The spike in IAM policy changes, access key creation, and failed console logons from a new country is directly recorded in these logs, making them the strongest evidence for a control-plane compromise.
Key principle: Cloud audit logs record all API calls to the cloud control plane.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Packet captures from user laptops only
Why it's wrong here
Network captures may not show cloud API intent or identity 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.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Cloud audit logs record all API calls to the cloud control plane.
✗
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between control-plane and data-plane telemetry, and the trap here is that candidates mistakenly think packet captures or web logs can reveal cloud API activity, when in fact only cloud audit logs provide the necessary API-level detail for identity and policy changes.
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
Cloud audit logs like AWS CloudTrail record all management events (control-plane) with details such as `eventSource`, `eventName`, `userIdentity`, `sourceIPAddress`, and `requestParameters`. For example, an `CreateAccessKey` API call would show the IAM user ARN and the IP address of the requester. In a real-world scenario, an attacker who compromises an IAM user's credentials would generate a sequence of `PutUserPolicy`, `CreateAccessKey`, and `ConsoleLogin` events, all logged in the audit trail, while packet captures would only show encrypted TLS sessions to the cloud API endpoint without revealing the API payload.
KKey Concepts to Remember
Cloud audit logs record all API calls to the cloud control plane.
IAM policy changes and access key creation are control plane API actions.
Failed console logons are authentication events recorded in cloud audit logs.
Cloud audit logs provide the 'who, what, when, where' for cloud management activities.
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 all API calls to the cloud control plane.
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.
Review cloud audit logs record all API calls to the cloud control plane., then practise related CS0-003 questions on the same topic to reinforce the concept.
Security Operations — This question tests Security Operations — Cloud audit logs record all API calls to the cloud control plane..
What is the correct answer to this question?
The correct answer is: Cloud audit logs for identity, policy, and key-management API calls — Control-plane operations in cloud environments are managed through APIs for identity (IAM), policy, and key management. Cloud audit logs (e.g., AWS CloudTrail, Azure Activity Log) capture every API call to these services, including who made the call, from which IP address, and what changes were made. The spike in IAM policy changes, access key creation, and failed console logons from a new country is directly recorded in these logs, making them the strongest evidence for a control-plane compromise.
What should I do if I get this CS0-003 question wrong?
Review cloud audit logs record all API calls to the cloud control plane., then practise related CS0-003 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Cloud audit logs record all API calls to the cloud control plane.
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