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KCNA Cloud Native Architecture Practice Question
Drag and drop the steps to configure a Kubernetes Service of type LoadBalancer in a cloud environment 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
✓
Step 1: Deploy the application. Step 2: Define and create the LoadBalancer service. Step 3: Retrieve the external IP. Step 4: Access the application using the IP.
First deploy the app, then define and create the LoadBalancer service, retrieve the IP, and access it.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Step 1: Deploy the application. Step 2: Define and create the LoadBalancer service. Step 3: Retrieve the external IP. Step 4: Access the application using the IP.
Why this is correct
This is the correct order because you must first have the application pods running, then expose them via a LoadBalancer service. After the service is created, the cloud provider assigns an external IP, which you retrieve and then use to access the application.
- ✗
Step 1: Define and create the LoadBalancer service. Step 2: Deploy the application. Step 3: Retrieve the external IP. Step 4: Access the application.
Why it's wrong here
This is incorrect because creating the service before deploying the application may result in a service without any endpoints (pods). The external IP may be assigned, but the service will not route traffic until the application pods are running and match the service's selector.
- ✗
Step 1: Retrieve the external IP. Step 2: Deploy the application. Step 3: Define and create the LoadBalancer service. Step 4: Access the application.
Why it's wrong here
This is incorrect because you cannot retrieve the external IP before the LoadBalancer service is created. The external IP is assigned by the cloud provider only after the service is defined and created.
- ✗
Step 1: Deploy the application. Step 2: Retrieve the external IP. Step 3: Define and create the LoadBalancer service. Step 4: Access the application.
Why it's wrong here
This is incorrect because retrieving the external IP must happen after the LoadBalancer service is created. Without creating the service, there is no external IP to retrieve.
Go deeper
Related to this question
Learn chapter
Cloud Native Architecture and Concepts
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.
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.
About these practice questions
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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.