ITIL4-CDS Create, Deliver and Support Practice Question
Which concept describes the ability of a service to adapt to changing demand without manual intervention?
⚠ Common exam trap
Candidates frequently confuse 'Scalability' with 'Resilience' or 'Reliability'. They focus on the system's ability to survive a failure rather than its ability to automatically adjust resource capacity based on current demand.
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
✓
Scalability
Scalability is the capability of a system to handle increased or decreased workload by adding or removing resources automatically. In ITIL 4 CDS, this is critical for maintaining service levels and cost-effectiveness. By utilizing elastic infrastructure, organizations ensure that services remain available and responsive during peak times, while minimizing expenditure during periods of low activity, thereby supporting efficient and reliable service delivery.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Resilience
Why it's wrong here
Resilience refers to the ability of a service to withstand and recover from failures, not the ability to adjust to variable demand. While often related to high availability, it focuses on stability and fault tolerance rather than the dynamic scaling of resources in response to changing user load.
- ✓
Scalability
Why this is correct
Scalability is the fundamental ability of a system to expand or contract its resource allocation based on current demand. This automated adjustment ensures the service remains performant and cost-efficient, which is a key technical requirement for modern, cloud-native IT service delivery models as described in the CDS guidance.
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Maintainability
Why it's wrong here
Maintainability relates to how easily a system can be updated, repaired, or improved over time. It is concerned with code structure, documentation, and the ease of modifying the system, rather than the automatic adjustment of resources to accommodate fluctuating user demand patterns or traffic volumes.
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Availability
Why it's wrong here
Availability is the measure of the percentage of time a service is operational and accessible to users. While scalability contributes to availability, availability itself is the outcome metric, not the process of adapting to demand. It describes the state of the service rather than the mechanism of scaling.
About these practice questions
One of 155 original ITIL4-CDS 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 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.