CSSLP Secure Software Architecture And Design Practice Question
You are designing an application that integrates with a legacy system. Which design strategy minimizes the risk of the legacy system's vulnerabilities affecting your application?
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
✓
Creating an abstraction layer (wrapper/adapter) to sanitize all data exchanged.
An abstraction layer acts as a buffer, sanitizing and normalizing data before it enters or leaves the application.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Creating an abstraction layer (wrapper/adapter) to sanitize all data exchanged.
Why this is correct
This shields the new application from legacy system weaknesses.
- ✗
Migrating all legacy data immediately.
Why it's wrong here
This is a project management task, not a security design strategy.
- ✗
Direct integration via shared database tables.
Why it's wrong here
This exposes the application to the legacy system's flaws directly.
- ✗
Granting the legacy system full administrative privileges in the new system.
Why it's wrong here
This increases the attack surface significantly.
About these practice questions
One of 198 original CSSLP practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official (ISC)² exam blueprint
This CSSLP practice question is part of Courseiva's free (ISC)² 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 CSSLP exam.