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. 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 DAST scan cannot reach authenticated pages of a web application and reports only public content findings. What should be configured? For business prioritization, Which recommendation gives the best risk-based order of work?
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.
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.
Disable all application authentication
Why wrong: This would change the application and create risk.
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. Without session handling (e.g., cookies, tokens), the scanner only sees public content. Configuring authenticated scanning with a test account and proper session management (e.g., OWASP ZAP's session handling rules or Burp Suite's authentication pre-script) allows the scanner to maintain state and reach restricted pages, enabling full coverage of the application's attack surface.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
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.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Reduce the scan to only the landing page
Why it's wrong here
That further limits coverage.
Disable all application authentication
Why it's wrong here
This would change the application and create risk.
Common exam traps
The trap here is that candidates may think 'no findings' means the application is secure, but Cisco tests the understanding that DAST results are only as good as the scope of pages the scanner can actually reach, and that authenticated scanning is mandatory for comprehensive testing.
Detailed technical explanation
Under the hood, DAST tools like Burp Suite or OWASP ZAP use session tokens (e.g., JSESSIONID, Bearer tokens) stored in cookies or headers to maintain authentication state. If the scanner cannot replay these tokens during subsequent requests, it will be redirected to login pages or receive 401/403 responses, never reaching protected endpoints. In a real-world scenario, a banking application might have 90% of its attack surface behind authentication; without proper session handling, a DAST scan would miss critical flaws like IDOR or SQL injection in account management functions.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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
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FAQ
Vulnerability Management — This question tests Vulnerability Management — Read the scenario before looking for a memorised answer..
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. Without session handling (e.g., cookies, tokens), the scanner only sees public content. Configuring authenticated scanning with a test account and proper session management (e.g., OWASP ZAP's session handling rules or Burp Suite's authentication pre-script) allows the scanner to maintain state and reach restricted pages, enabling full coverage of the application's attack surface.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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