easyMultiple Choice
CISA Developing a mobile banking application Practice Question
A company is developing a mobile banking application. Which test phase is MOST critical to ensure that the application functions correctly from the end user's perspective?
⚠ Common exam trap
Watch out — candidates often confuse system testing with user acceptance testing, mistakenly thinking that verifying all system functions technically is equivalent to ensuring the application works correctly from the end user's perspective.
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
✓
User acceptance testing (UAT).
User acceptance testing (UAT) is the most critical phase for verifying that the mobile banking application meets end-user requirements and functions correctly from their perspective. Unlike other testing phases that focus on technical correctness, UAT involves real users performing actual banking transactions (e.g., fund transfers, balance inquiries) in a production-like environment to validate usability, workflow accuracy, and compliance with business rules. This ensures the application is ready for deployment and will be accepted by its intended audience.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
System testing.
Why it's wrong here
System testing validates the integrated product against specified requirements, but end-user perspective is the domain of acceptance testing, which exercises real banking workflows. System testing would be correct for verifying the assembled application against its functional specification before release.
- ✓
User acceptance testing (UAT).
Why this is correct
UAT is performed by actual end users in a production-like environment, validating that workflows, usability and business rules meet their needs. Unlike unit, integration or system testing, which verify technical correctness against specifications, UAT directly satisfies the stem's constraint of functioning correctly from the end user's perspective.
- ✗
Unit testing.
Why it's wrong here
Unit testing exercises individual functions or methods in isolation, so it cannot validate end-to-end workflows, UI behaviour or integration across the mobile banking app that a real user experiences. It is tempting because unit tests are cheap, fast and catch logic defects early, making them the right choice when verifying a single component's internal correctness.
- ✗
Integration testing.
Why it's wrong here
Integration testing verifies interactions between components and interfaces, not the complete user journey through the mobile app. It would be correct when validating data exchange between the app and backend APIs, whereas end-user perspective demands acceptance testing.
Go deeper
Related to this question
About these practice questions
Courseiva writes every CISA question from scratch — 934 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.