ITIL4-CDS Create, Deliver and Support Practice Question
A software development team is adopting shift-left testing as part of their value stream optimization initiative. Developers are now executing automated unit tests and static code analysis before merging any code into the main repository. What is the primary operational benefit of this practice within the context of ITIL 4 Create, Deliver and Support?
⚠ Common exam trap
Candidates tend to focus on speed alone, missing that catching defects early directly impacts the fundamental economic efficiency of defect remediation.
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
✓
It reduces the overall cost and effort of defect remediation by identifying and resolving quality issues early in the development lifecycle.
Shift-left testing moves quality assurance activities earlier in the value stream, reducing the cost and effort of defect remediation. By catching issues during development rather than production or testing phases, organizations dramatically improve throughput, stability, and overall service quality, which is central to the CDS value stream optimization principles.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It completely eliminates the need for any formal user acceptance testing prior to final production deployment.
Why it's wrong here
User acceptance testing serves a distinct validation purpose focused on business suitability rather than technical code correctness. Shift-left testing supplements but does not replace the need for comprehensive stakeholder validation and acceptance before deploying changes to live environments.
- ✓
It reduces the overall cost and effort of defect remediation by identifying and resolving quality issues early in the development lifecycle.
Why this is correct
Detecting defects early in the development cycle significantly lowers the cost and effort required for correction. This proactive identification prevents cascading failures, reduces waste, and accelerates value delivery by ensuring higher quality artifacts enter downstream integration stages.
- ✗
It guarantees that software releases will never experience performance degradation or scalability bottlenecks in production environments.
Why it's wrong here
While unit testing and static analysis improve code quality, they cannot fully replicate complex production workloads. Performance and scalability issues often only emerge under realistic load conditions, requiring dedicated capacity management and performance testing practices.
- ✗
It transfers ultimate accountability for operational stability and incident management directly from support teams to individual software developers.
Why it's wrong here
Accountability for service management and operational stability remains an organizational responsibility supported by collaborative cultures like DevOps. While developers take on more quality ownership, support teams retain crucial roles in incident handling and user communication.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official PeopleCert/AXELOS exam blueprint
This ITIL4-CDS practice question is part of Courseiva's free PeopleCert/AXELOS 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 ITIL4-CDS exam.