Information Systems Acquisition, Development, and Implementation →easyMultiple ChoiceObjective-mapped
CISA Practice Question: Information Systems Acquisition, Development, and Implementation
During which phase of the waterfall SDLC should security requirements be formally documented and approved by the business owner?
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
✓
Requirements phase
In the waterfall model, security requirements must be defined during the requirements phase to ensure they are integrated into the design. Formal sign-off by the business owner ensures accountability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Development phase
Why it's wrong here
Development phase implements requirements, not defines them.
- ✓
Requirements phase
Why this is correct
Requirements phase is the correct stage for documenting and approving security requirements.
- ✗
Design phase
Why it's wrong here
Security requirements should be defined before design begins.
- ✗
Testing phase
Why it's wrong here
Testing phase is too late; requirements must be defined earlier.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISA practice question is part of Courseiva's free ISACA 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 CISA exam.