DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
You need to protect Azure SQL Database from SQL injection attacks. Which THREE of the following measures should you implement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable Microsoft Defender for SQL to detect and alert on SQL injection.
Microsoft Defender for SQL provides advanced security capabilities, including vulnerability assessment and threat detection. It specifically monitors for anomalous activities that indicate a SQL injection attack, such as unusual login attempts or queries that match known injection patterns, and can alert administrators or trigger automated responses.
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.
✓
Enable Microsoft Defender for SQL to detect and alert on SQL injection.
Why this is correct
Defender for SQL includes threat detection for SQL injection patterns.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use parameterized queries or stored procedures in the application.
Why this is correct
Parameterized queries prevent malicious SQL from being interpreted as code.
Related concept
Read the scenario before looking for a memorised answer.
✗
Implement dynamic data masking to hide sensitive data from unauthorized users.
Why it's wrong here
Data masking does not prevent injection; it only hides data in results.
✓
Use a web application firewall (WAF) in front of the application to filter malicious inputs.
Why this is correct
WAF can block common SQL injection patterns before they reach the database.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable Transparent Data Encryption (TDE) to encrypt the database at rest.
Why it's wrong here
TDE protects data at rest, not from injection attacks.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse data protection features like dynamic data masking or TDE with SQL injection prevention, when in fact they address entirely different threats (data exposure at query time vs. data at rest encryption).
Detailed technical explanation
How to think about this question
Parameterized queries (or prepared statements) separate SQL code from data by using placeholders, ensuring user input is never interpreted as executable SQL. A Web Application Firewall (WAF) like Azure Application Gateway or Front Door can inspect HTTP requests for common SQL injection signatures (e.g., ' OR 1=1 --) and block them before they reach the database. Together, these controls address both the application coding layer and the network perimeter, forming a defense-in-depth strategy against SQL injection.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
Implement a secure environment — This question tests Implement a secure environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable Microsoft Defender for SQL to detect and alert on SQL injection. — Microsoft Defender for SQL provides advanced security capabilities, including vulnerability assessment and threat detection. It specifically monitors for anomalous activities that indicate a SQL injection attack, such as unusual login attempts or queries that match known injection patterns, and can alert administrators or trigger automated responses.
What should I do if I get this DP-300 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 →
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 DP-300 practice question is part of Courseiva's free Microsoft 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 DP-300 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.