CAS-004 Security Architecture Practice Question
A company is deploying a cloud access security broker (CASB) to gain visibility into shadow IT. Which mode of operation would allow the CASB to inspect traffic without requiring proxy configuration on endpoints?
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
✓
API-based mode
API-based mode uses cloud provider APIs to access logs and metadata, providing visibility without inline traffic interception or endpoint changes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reverse proxy mode
Why it's wrong here
Reverse proxy sits in front of cloud apps but may require changes to DNS or routing.
- ✗
Inline mode
Why it's wrong here
Inline mode requires traffic to pass through the CASB, often needing proxy configuration.
- ✓
API-based mode
Why this is correct
API-based mode uses cloud provider APIs for out-of-band visibility.
- ✗
Forward proxy mode
Why it's wrong here
Forward proxy requires explicit configuration on end-user devices.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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