The answer is to perform threat modeling during the design phase to minimize security flaws. This is correct because threat modeling is a proactive security activity that systematically identifies potential attack vectors, trust boundaries, and threats by analyzing system architecture and data flows before any code is written, allowing teams to mitigate vulnerabilities early when fixes are cheapest and least disruptive. On the Systems Security Certified Practitioner SSCP exam, this concept tests your understanding of secure SDLC phases and the shift-left principle, often appearing in questions that contrast design-phase activities with those of later phases like testing or deployment; a common trap is confusing threat modeling with vulnerability scanning, which occurs post-development. To remember, think of the mnemonic “Design to Defend”—threat modeling in the design phase builds security into the blueprint, not the building.
SSCP Systems and Application Security Practice Question
This SSCP practice question tests your understanding of systems and application security. 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.
An organization is implementing a secure software development lifecycle (SDLC). Which activity should be performed during the design phase to minimize security flaws?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Perform threat modeling to identify potential attack vectors.
Threat modeling is a proactive security activity performed during the design phase to identify potential attack vectors, trust boundaries, and threats before any code is written. By analyzing the system architecture and data flows, teams can mitigate security flaws early, reducing the cost and effort of fixing vulnerabilities later in the SDLC.
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.
✓
Perform threat modeling to identify potential attack vectors.
Why this is correct
Threat modeling in design phase identifies risks before coding.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Run dynamic application security testing (DAST) tools.
Why it's wrong here
DAST is performed on running applications.
✗
Apply security patches to the development environment.
Why it's wrong here
Patching is operational, not design.
✗
Conduct a code review for security vulnerabilities.
Why it's wrong here
Code review occurs during development, not design.
Common exam traps
Common exam trap: answer the scenario, not the keyword
ISC2 often tests the distinction between design-phase activities (like threat modeling) and implementation or testing-phase activities (like code review or DAST), so the trap is assuming that any security testing or patching belongs in the design phase.
Detailed technical explanation
How to think about this question
Threat modeling often uses frameworks like STRIDE (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege) or PASTA (Process for Attack Simulation and Threat Analysis) to systematically enumerate threats. In practice, a data flow diagram (DFD) is created to map trust boundaries, and each element is analyzed against STRIDE categories to identify where an attacker could compromise the system. For example, a web application handling credit card data would flag the database as a target for tampering, leading to design controls like parameterized queries and encryption at rest.
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.
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.
Systems and Application Security — This question tests Systems and Application Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Perform threat modeling to identify potential attack vectors. — Threat modeling is a proactive security activity performed during the design phase to identify potential attack vectors, trust boundaries, and threats before any code is written. By analyzing the system architecture and data flows, teams can mitigate security flaws early, reducing the cost and effort of fixing vulnerabilities later in the SDLC.
What should I do if I get this SSCP 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: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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