ITIL4-CDS Create, Deliver and Support Practice Question
Exhibit
LOG_ENTRY: [ERROR] 2023-10-12 14:02:01 - Deployment failed. Dependency conflict detected: lib-v2.1 requires kernel > 5.0. Current kernel: 4.15. [ACTION] Rollback initiated to version 1.9.
Refer to the exhibit. Based on the provided log entry, which CDS concept should the team investigate to improve their deployment success rate?
⚠ Common exam trap
Students often select options involving post-deployment monitoring or incident response, missing that the error occurred before deployment due to environment configuration mismatches.
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
✓
Implement automated environment configuration validation.
The error highlights a failure to validate environmental requirements prior to deployment, leading to a rollback. In a CDS context, this points to a breakdown in 'Deployment Management' and 'Release Management' practices. The team needs to implement more rigorous environment modeling and automated pre-deployment validation checks to ensure that the target infrastructure meets all necessary prerequisites, thereby preventing failed deployments and reducing service downtime and instability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Improve incident response communication to stakeholders.
Why it's wrong here
While communication is important, the log entry identifies a technical failure due to environmental mismatch, not a communication gap. Improving communication would not address the root cause of the deployment failure, which is the lack of proper validation of the target infrastructure against the required service dependencies.
- ✓
Implement automated environment configuration validation.
Why this is correct
Automated validation ensures that the production environment meets all dependency requirements before a deployment proceeds. This proactive check prevents the deployment from occurring if the environment is incompatible, directly addressing the root cause shown in the exhibit and increasing the success rate of future production releases.
- ✗
Increase the frequency of deployment to ensure faster feedback.
Why it's wrong here
Increasing frequency without fixing the underlying validation issue would simply lead to more frequent failed deployments. The team must first address the environmental validation gap to ensure that subsequent releases are stable, rather than blindly increasing speed which would exacerbate the technical debt and service quality issues.
- ✗
Enhance the rollback procedure to be faster.
Why it's wrong here
Optimizing rollbacks is important for resilience, but it does not prevent the failure from happening in the first place. CDS focuses on managing value streams effectively, which includes ensuring successful deployments rather than merely minimizing the duration of failures once they have already occurred in production.
About these practice questions
Courseiva writes every ITIL4-CDS question from scratch — 155 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 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.