- A
ConfigMap
Why wrong: ConfigMaps store configuration data, not application lifecycle.
- B
Service
Why wrong: Services provide network access to Pods but do not manage Pod lifecycle.
- C
Deployment
A Deployment ensures desired number of Pods are running and supports rolling updates.
- D
Pod
Why wrong: Pods are the smallest deployable units but do not provide self-healing or scaling on their own.
Question 479 of 997
CV0-004 Deployment Practice Question
This CV0-004 practice question tests your understanding of deployment. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A cloud engineer is tasked with deploying a containerized application on Kubernetes. The application must handle varying loads, and the deployment should automatically replace failed containers. Which Kubernetes object should the engineer use to achieve self-healing and scalability?
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
✓
Deployment
A Deployment is the correct Kubernetes object because it manages ReplicaSets to provide declarative updates, self-healing (automatic replacement of failed pods), and scalability (adjusting replica counts). Unlike a standalone Pod, a Deployment ensures the desired state is maintained, automatically rescheduling containers if they fail.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ConfigMap
Why it's wrong here
ConfigMaps store configuration data, not application lifecycle.
- ✗
Service
Why it's wrong here
Services provide network access to Pods but do not manage Pod lifecycle.
- ✓
Deployment
Why this is correct
A Deployment ensures desired number of Pods are running and supports rolling updates.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Pod
Why it's wrong here
Pods are the smallest deployable units but do not provide self-healing or scaling on their own.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that a Pod alone provides self-healing, but in Kubernetes, a Pod is a non-self-healing atomic unit; only controllers like Deployment (or StatefulSet/DaemonSet) provide automatic replacement and scaling.
Detailed technical explanation
How to think about this question
A Deployment creates a ReplicaSet, which in turn manages the desired number of pod replicas via the ReplicaSet controller's reconciliation loop. When a pod fails, the ReplicaSet detects the mismatch between the desired and actual replica count and creates a new pod to replace it. For scaling, changing the Deployment's `replicas` field triggers the ReplicaSet to adjust the pod count, and rolling updates are handled by creating a new ReplicaSet while gradually scaling down the old one.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CV0-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this CV0-004 question test?
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Deployment — A Deployment is the correct Kubernetes object because it manages ReplicaSets to provide declarative updates, self-healing (automatic replacement of failed pods), and scalability (adjusting replica counts). Unlike a standalone Pod, a Deployment ensures the desired state is maintained, automatically rescheduling containers if they fail.
What should I do if I get this CV0-004 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.
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