This CS0-003 practice question tests your understanding of security operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: hTTP 200 means request processed, not necessarily benign.. 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 WAF generates repeated SQL injection alerts against a login endpoint. The application team says the requests returned HTTP 200. What should the analyst do before declaring compromise? In the containment trade-off phase, Which response balances containment with evidence preservation?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Review application logs for query errors, authentication events, and abnormal database access
Option A is correct because HTTP 200 responses from a WAF-protected endpoint do not rule out successful SQL injection; the application may have processed the malicious input without triggering an HTTP error. Reviewing application logs for query errors, authentication anomalies, and abnormal database access provides direct evidence of whether the injection actually succeeded, which is essential before declaring compromise. This approach balances containment by not disrupting legitimate traffic while preserving forensic evidence for analysis.
Key principle: HTTP 200 means request processed, not necessarily benign.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Review application logs for query errors, authentication events, and abnormal database access
Why this is correct
HTTP 200 can occur for blocked, handled, or successful requests; application and database context determine impact.
Related concept
HTTP 200 means request processed, not necessarily benign.
✗
Disable the WAF rule because it may be noisy
Why it's wrong here
Tuning may be needed later, but disabling protection before validation is risky.
✗
Treat every HTTP 200 as proof of exploitation
Why it's wrong here
Status codes alone do not prove database compromise.
✗
Ask users to change passwords without checking logs
Why it's wrong here
Password resets may be required, but the first step is impact validation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that an HTTP 200 status code definitively indicates no exploitation occurred, when in reality it only reflects the web server's response, not the success or failure of the injected SQL.
Detailed technical explanation
How to think about this question
SQL injection attacks often succeed even when the application returns HTTP 200, especially if the injected query modifies data or extracts it via blind techniques (e.g., time-based or boolean-based blind SQLi). Application logs at the database layer (e.g., MySQL general query log, PostgreSQL pg_stat_statements) can reveal actual query execution, while WAF logs only show the request that triggered the alert. In real-world scenarios, a WAF may alert on a payload that the application safely escapes, but the analyst must correlate with database transaction logs to confirm compromise.
KKey Concepts to Remember
HTTP 200 means request processed, not necessarily benign.
Application logs detail internal processing and database interactions.
SQL injection can still occur with HTTP 200 if errors are handled.
Validation is crucial before declaring compromise or false positive.
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
HTTP 200 means request processed, not necessarily benign.
Real-world example
How this comes up in practice
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.
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 — HTTP 200 means request processed, not necessarily benign..
What is the correct answer to this question?
The correct answer is: Review application logs for query errors, authentication events, and abnormal database access — Option A is correct because HTTP 200 responses from a WAF-protected endpoint do not rule out successful SQL injection; the application may have processed the malicious input without triggering an HTTP error. Reviewing application logs for query errors, authentication anomalies, and abnormal database access provides direct evidence of whether the injection actually succeeded, which is essential before declaring compromise. This approach balances containment by not disrupting legitimate traffic while preserving forensic evidence for analysis.
What should I do if I get this CS0-003 question wrong?
Review hTTP 200 means request processed, not necessarily benign., then practise related CS0-003 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
HTTP 200 means request processed, not necessarily benign.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This CS0-003 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CS0-003 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.