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KCNA Kubernetes Fundamentals Practice Question
Drag and drop the steps to create a Kubernetes Namespace and deploy an application into it into the correct order.
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
✓
Create the namespace using 'kubectl create namespace my-namespace', then deploy the application using 'kubectl apply -f deployment.yaml -n my-namespace', then verify the deployment using 'kubectl get pods -n my-namespace'.
First create namespace, then deploy resources specifying that namespace, and verify.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create the namespace using 'kubectl create namespace my-namespace', then deploy the application using 'kubectl apply -f deployment.yaml -n my-namespace', then verify the deployment using 'kubectl get pods -n my-namespace'.
Why this is correct
This is the correct order because the namespace must exist before deploying resources into it, and verification after deployment confirms the application is running in the intended namespace.
- ✗
Deploy the application using 'kubectl apply -f deployment.yaml' without specifying a namespace, then create the namespace using 'kubectl create namespace my-namespace', then verify using 'kubectl get pods'.
Why it's wrong here
This is incorrect because deploying first without a namespace puts the application in the default namespace. Creating the namespace afterward does not move the deployment, and verification without a namespace checks the default namespace, not the intended one.
- ✗
Verify the deployment using 'kubectl get pods', then create the namespace using 'kubectl create namespace my-namespace', then deploy the application using 'kubectl apply -f deployment.yaml -n my-namespace'.
Why it's wrong here
This is incorrect because verifying before creating the namespace will fail as the namespace does not exist, and the verification step is premature without any resources deployed.
- ✗
Create the namespace using 'kubectl create namespace my-namespace', then verify using 'kubectl get pods -n my-namespace', then deploy the application using 'kubectl apply -f deployment.yaml -n my-namespace'.
Why it's wrong here
This is incorrect because verifying after creating the namespace but before deploying the application will show no resources (empty), which does not confirm the deployment; verification should occur after deployment.
Go deeper
Related to this question
Learn chapter
Kubernetes Overview and Core Components
Key term
Kubernetes API Primitives
Kubernetes API Primitives are the basic building blocks that the Kubernetes API uses to represent and manage the state of a cluster, such as Pods, Services, Deployments, and Namespaces.
Key term
ReplicaSet and Replication
A ReplicaSet ensures a specified number of identical pod instances are running at all times in Kubernetes, using replication to maintain availability and stability.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This KCNA practice question is part of Courseiva's free CNCF 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 KCNA exam.