The answer is FIPS 140-2, the U.S. government standard for cryptographic module validation. This standard, maintained by NIST, defines rigorous security requirements that a hardware or software cryptographic module must meet to be considered validated for protecting sensitive data. On the CompTIA SecurityX CAS-004 exam, this concept tests your ability to distinguish between compliance frameworks: FIPS 140-2 focuses on the module itself, while NIST SP 800-53 governs broader security controls, PCI DSS applies to payment card data, and ISO 27001 addresses management systems. A common trap is confusing FIPS 140-2 with a general security framework, but remember that the keyword “cryptographic module” directly points to this validation standard. For a quick memory tip, think “FIPS 140-2 = crypto module lock,” where the “140” reminds you of the specific validation number, not a broad policy list.
CAS-004 Security Engineering Practice Question
This CAS-004 practice question tests your understanding of security engineering. 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.
An organization is deploying a new application that processes sensitive user data. The security team recommends using a dedicated cryptographic module. Which standard should the module comply with to ensure it is validated for security?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
FIPS 140-2
FIPS 140-2 (or its successor 140-3) is the U.S. government standard for validating cryptographic modules. NIST SP 800-53 is for security controls, PCI DSS for payment card data, and ISO 27001 for management systems.
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.
✗
ISO 27001
Why it's wrong here
ISO 27001 is an information security management system standard, not for cryptographic module validation.
✗
PCI DSS
Why it's wrong here
PCI DSS is a standard for payment card data security, not for validating cryptographic modules.
✗
NIST SP 800-53
Why it's wrong here
SP 800-53 provides security and privacy controls for federal systems, not specifically for cryptographic modules.
✓
FIPS 140-2
Why this is correct
FIPS 140-2 is the standard for cryptographic module validation, ensuring hardware and software meet security requirements.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 practitioner preparing for the CAS-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which CAS-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Security Engineering — This question tests Security Engineering — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: FIPS 140-2 — FIPS 140-2 (or its successor 140-3) is the U.S. government standard for validating cryptographic modules. NIST SP 800-53 is for security controls, PCI DSS for payment card data, and ISO 27001 for management systems.
What should I do if I get this CAS-004 question wrong?
Identify which CAS-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 CAS-004 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 CAS-004 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.