This CS0-003 practice question tests your understanding of vulnerability management. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: dAST requires valid credentials for authenticated scanning.. 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 DAST scan cannot reach authenticated pages of a web application and reports only public content findings. What should be configured? For validation, Which action should be taken before closing or downgrading the finding?
Disable all application authentication
Why wrong: This would change the application and create risk.
Treat absence of findings as proof of security
Why wrong: Unreached pages were not tested.
Authenticated scanning with a test account and session handling
DAST needs valid authentication and session management to test protected functionality.
Reduce the scan to only the landing page
Why wrong: That further limits coverage.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Authenticated scanning with a test account and session handling
DAST scanners require authenticated sessions to crawl and test pages behind login forms. Configuring authenticated scanning with a test account and proper session handling (e.g., cookie-based or token-based authentication) allows the scanner to maintain state and reach protected endpoints. Without this, the scanner only sees public content, missing vulnerabilities in authenticated areas.
Key principle: DAST requires valid credentials for authenticated scanning.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Disable all application authentication
Why it's wrong here
This would change the application and create risk.
Treat absence of findings as proof of security
Why it's wrong here
Unreached pages were not tested.
Authenticated scanning with a test account and session handling
Why this is correct
DAST needs valid authentication and session management to test protected functionality.
Related concept
DAST requires valid credentials for authenticated scanning.
Reduce the scan to only the landing page
Why it's wrong here
That further limits coverage.
Common exam traps
Cisco often tests the misconception that disabling authentication or ignoring missing findings is acceptable, when the correct approach is to configure authenticated scanning to ensure comprehensive coverage of the attack surface.
Detailed technical explanation
DAST scanners like Burp Suite or OWASP ZAP typically support session handling via macros or authentication scripts that replay login sequences (e.g., POST to /login with credentials) and extract session tokens or cookies. In real-world scenarios, applications may use CSRF tokens or multi-step authentication (e.g., OAuth 2.0), requiring the scanner to be configured with a pre-recorded login macro or a session token refresh mechanism to avoid session timeouts during the scan.
Key takeaway
DAST requires valid credentials for authenticated scanning.
Real-world example
A security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
What to study next
Review dAST requires valid credentials for authenticated scanning., then practise related CS0-003 questions on the same topic to reinforce the concept.
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FAQ
Vulnerability Management — This question tests Vulnerability Management — DAST requires valid credentials for authenticated scanning..
The correct answer is: Authenticated scanning with a test account and session handling — DAST scanners require authenticated sessions to crawl and test pages behind login forms. Configuring authenticated scanning with a test account and proper session handling (e.g., cookie-based or token-based authentication) allows the scanner to maintain state and reach protected endpoints. Without this, the scanner only sees public content, missing vulnerabilities in authenticated areas.
Review dAST requires valid credentials for authenticated scanning., then practise related CS0-003 questions on the same topic to reinforce the concept.
DAST requires valid credentials for authenticated scanning.
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Last reviewed: Jun 11, 2026
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