The answer is to use parameterized queries or prepared statements for database access. This is the correct fix because the flaw is a classic SQL injection vulnerability, where unsanitized user input like ' OR '1'='1 is concatenated directly into a SQL query, allowing it to execute as code instead of data. Parameterized queries separate SQL logic from input, treating the malicious string as a literal value, which neutralizes the injection—this is the industry-standard mitigation recommended by OWASP. On the Security+ SY0-701 exam, this scenario tests your understanding of secure coding practices under the "attacks" domain; a common trap is choosing input validation or escaping, which are weaker defenses that can be bypassed. Remember the memory tip: "Parameters prevent payloads"—if you see concatenated SQL strings in a question, the fix is always to parameterize, not to filter.
SY0-701 Threats, Vulnerabilities, and Mitigations Practice Question
This SY0-701 practice question tests your understanding of threats, vulnerabilities, and mitigations. 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.
During testing, entering ' OR '1'='1 into a login field returns all user records instead of rejecting the input. What is the best fix to address this flaw?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use parameterized queries or prepared statements for database access
Option B is correct because the flaw is a classic SQL injection vulnerability, where unsanitized user input is concatenated directly into a SQL query. Parameterized queries (prepared statements) separate SQL logic from data, ensuring that input like ' OR '1'='1 is treated as a literal string value, not executable code. This is the industry-standard mitigation per OWASP and effectively prevents injection attacks.
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.
✗
Add client-side JavaScript validation to block quote characters
Why it's wrong here
Client-side checks are easy to bypass and do not stop malicious input reaching the server.
✓
Use parameterized queries or prepared statements for database access
Why this is correct
Parameterized queries separate code from data, which prevents SQL injection even when attackers supply special characters.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Store passwords in a stronger hash format
Why it's wrong here
Better password storage is good practice, but it does not fix query construction that allows injection.
✗
Change the login page to HTTPS
Why it's wrong here
TLS protects data in transit, but it does not prevent the application from building unsafe SQL statements.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse input validation (like blocking quotes) with the proper defense of parameterized queries, not realizing that blacklisting characters is ineffective and that the correct fix is to use prepared statements to separate code from data.
Detailed technical explanation
How to think about this question
Under the hood, parameterized queries work by sending the SQL statement template to the database server first, then sending the parameter values separately, so the database engine compiles the query before any user input is bound. This prevents input from altering the query structure, even if it contains single quotes or SQL keywords. In a real-world scenario, this flaw could be exploited to dump entire databases, bypass authentication, or even execute commands via stacked queries in databases like Microsoft SQL Server.
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 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 SY0-701 question in full detail.
Threats, Vulnerabilities, and Mitigations — This question tests Threats, Vulnerabilities, and Mitigations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use parameterized queries or prepared statements for database access — Option B is correct because the flaw is a classic SQL injection vulnerability, where unsanitized user input is concatenated directly into a SQL query. Parameterized queries (prepared statements) separate SQL logic from data, ensuring that input like ' OR '1'='1 is treated as a literal string value, not executable code. This is the industry-standard mitigation per OWASP and effectively prevents injection attacks.
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.
Are there clue words in this question I should notice?
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.
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 →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. During testing, a login form returns all user records when the tester enters ' OR '1'='1 in a username field. What is the best fix for this issue?
easy
A.Hide database error messages from the login page only
✓ B.Use parameterized queries or prepared statements
C.Require users to change passwords more often
D.Move the login page to a different URL
Why B: The SQL injection attack ' OR '1'='1 bypasses authentication by always evaluating to true, returning all user records. Parameterized queries (prepared statements) separate SQL logic from user input, preventing the injected string from altering the query structure. This is the industry-standard mitigation for SQL injection vulnerabilities.
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 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.