- A
A web application firewall in front of the application
A WAF is designed to inspect HTTP/S traffic and block common web attacks such as SQL injection and cross-site scripting before they reach the application.
- B
An endpoint detection and response agent on the web server only
Why wrong: EDR helps detect malicious activity on the host, but it does not provide dedicated inline inspection of web requests at the perimeter.
- C
A data loss prevention rule on the email gateway
Why wrong: DLP focuses on protecting sensitive data from leaving the organization and is not built to block hostile web requests.
- D
A network access control system for user authentication
Why wrong: NAC controls device access to the network, but it does not inspect application-layer web payloads for injection attempts.
SY0-701 Security Operations Practice Question
This SY0-701 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. 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 public web application is seeing bursts of requests that contain SQL metacharacters, encoded script tags, and attempts to POST to administrative endpoints. The team wants a control that can inspect HTTP traffic and block the malicious requests before they reach the app. What should be deployed?
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
A web application firewall in front of the application
A web application firewall (WAF) is specifically designed to inspect HTTP/HTTPS traffic at the application layer (Layer 7), analyzing request payloads for SQL metacharacters, encoded script tags (XSS), and unauthorized POST attempts to administrative endpoints. By deploying a WAF in front of the web application, malicious traffic is filtered and blocked before it reaches the application server, providing a proactive security control against common web attacks such as SQL injection and cross-site scripting.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A web application firewall in front of the application
Why this is correct
A WAF is designed to inspect HTTP/S traffic and block common web attacks such as SQL injection and cross-site scripting before they reach the application.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
An endpoint detection and response agent on the web server only
Why it's wrong here
EDR helps detect malicious activity on the host, but it does not provide dedicated inline inspection of web requests at the perimeter.
- ✗
A data loss prevention rule on the email gateway
Why it's wrong here
DLP focuses on protecting sensitive data from leaving the organization and is not built to block hostile web requests.
- ✗
A network access control system for user authentication
Why it's wrong here
NAC controls device access to the network, but it does not inspect application-layer web payloads for injection attempts.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse a WAF with a network firewall or an IDS/IPS, but the question specifically mentions HTTP traffic inspection and blocking of application-layer attacks (SQLi, XSS), which is the precise domain of a WAF, not a general network firewall or host-based EDR.
Detailed technical explanation
How to think about this question
A WAF operates by parsing HTTP requests and applying a set of rules (often based on the OWASP ModSecurity Core Rule Set) to detect patterns like SQL metacharacters (e.g., ' OR 1=1 --) or encoded script tags (e.g., %3Cscript%3E). It can be deployed as a reverse proxy, terminating TLS and inspecting decrypted traffic, or as an inline appliance that forwards only clean requests to the backend server. In real-world scenarios, a WAF can also provide virtual patching for known vulnerabilities (e.g., CVE-2024-XXXX) while the application team develops a permanent fix.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A SOC analyst notices unusual lateral movement in the network at 2 AM. The IR playbook dictates: identify and contain (isolate the affected machine), then eradicate (remove the malware), then recover (restore from backup), then document. Skipping containment before eradication risks the attacker regaining access. Questions like this test the sequence and rationale of incident response phases.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Security Operations — study guide chapter
Learn the concepts, then practise the questions
- →
Security Operations practice questions
Targeted practice on this topic area only
- →
All SY0-701 questions
1,152 questions across all exam domains
- →
Security+ SY0-701 study guide
Full concept coverage aligned to exam objectives
- →
SY0-701 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SY0-701 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
General Security Concepts practice questions
Practise SY0-701 questions linked to General Security Concepts.
Threats, Vulnerabilities, and Mitigations practice questions
Practise SY0-701 questions linked to Threats, Vulnerabilities, and Mitigations.
Security Architecture practice questions
Practise SY0-701 questions linked to Security Architecture.
Security Operations practice questions
Practise SY0-701 questions linked to Security Operations.
Security Program Management and Oversight practice questions
Practise SY0-701 questions linked to Security Program Management and Oversight.
Security+ social engineering questions
Practise SY0-701 questions linked to Security+ social engineering questions.
Security+ cryptography practice questions
Practise SY0-701 questions linked to Security+ cryptography.
Security+ IAM questions
Practise SY0-701 questions linked to Security+ IAM questions.
Security+ risk management questions
Practise SY0-701 questions linked to Security+ risk management questions.
Security+ incident response questions
Practise SY0-701 questions linked to Security+ incident response questions.
Security+ malware questions
Practise SY0-701 questions linked to Security+ malware questions.
Security+ vulnerability management questions
Practise SY0-701 questions linked to Security+ vulnerability management questions.
Practice this exam
Start a free SY0-701 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this SY0-701 question test?
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A web application firewall in front of the application — A web application firewall (WAF) is specifically designed to inspect HTTP/HTTPS traffic at the application layer (Layer 7), analyzing request payloads for SQL metacharacters, encoded script tags (XSS), and unauthorized POST attempts to administrative endpoints. By deploying a WAF in front of the web application, malicious traffic is filtered and blocked before it reaches the application server, providing a proactive security control against common web attacks such as SQL injection and cross-site scripting.
What should I do if I get this SY0-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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 →
Last reviewed: Jun 11, 2026
This SY0-701 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 SY0-701 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.