- A
kubectl expose deployment my-svc --type=LoadBalancer --name=my-svc-lb
Why wrong: This would attempt to expose a deployment, not the service.
- B
kubectl expose service my-svc --name=my-svc-lb
Why wrong: Without --type, defaults to ClusterIP, not LoadBalancer.
- C
kubectl expose service my-svc --port=80 --target-port=8080
Why wrong: This changes port mapping but does not set the service type to LoadBalancer.
- D
kubectl expose service my-svc --type=LoadBalancer --name=my-svc-lb
Correctly creates a new LoadBalancer service based on the existing service.
Question 35 of 997
Expose Service as LoadBalancer
This KCNA practice question tests your understanding of container orchestration. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 Kubernetes cluster has a Service named 'my-svc' in the 'default' namespace. Which command would correctly expose this service as an external endpoint using a cloud load balancer?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"which command"Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
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
✓
kubectl expose service my-svc --type=LoadBalancer --name=my-svc-lb
Option D is correct because `kubectl expose service my-svc --type=LoadBalancer --name=my-svc-lb` creates a new Service of type LoadBalancer that inherits the selector and port configuration from the existing 'my-svc' Service, which provisions a cloud load balancer (e.g., AWS ELB, GCP TCP/UDP LB) to expose it externally. The `--type=LoadBalancer` flag is essential to request a cloud load balancer, and `--name` specifies the new Service's name to avoid overwriting the original.
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.
- ✗
kubectl expose deployment my-svc --type=LoadBalancer --name=my-svc-lb
Why it's wrong here
This would attempt to expose a deployment, not the service.
- ✗
kubectl expose service my-svc --name=my-svc-lb
Why it's wrong here
Without --type, defaults to ClusterIP, not LoadBalancer.
- ✗
kubectl expose service my-svc --port=80 --target-port=8080
Why it's wrong here
This changes port mapping but does not set the service type to LoadBalancer.
- ✓
kubectl expose service my-svc --type=LoadBalancer --name=my-svc-lb
Why this is correct
Correctly creates a new LoadBalancer service based on the existing service.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The CNCF exam often tests the misconception that `kubectl expose service` without `--type=LoadBalancer` will automatically expose the service externally, when in fact it only creates a ClusterIP Service unless the type is explicitly specified.
Detailed technical explanation
How to think about this question
When `kubectl expose service` is used, it creates a new Service object that copies the selector and port configuration from the source Service, but the `--type` flag overrides the Service type in the new object; without `--type=LoadBalancer`, the new Service defaults to ClusterIP. Cloud load balancers are provisioned by the cloud provider's controller (e.g., AWS cloud-controller-manager) when it detects a Service with `type: LoadBalancer`, which allocates a public IP and configures backend health checks—this process can take 30-60 seconds and may incur costs even if no traffic flows.
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 KCNA 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.
- →
Container Orchestration — study guide chapter
Learn the concepts, then practise the questions
- →
Container Orchestration practice questions
Targeted practice on this topic area only
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- →
Kubernetes and Cloud Native Associate KCNA study guide
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KCNA practice test guide
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FAQ
Questions learners often ask
What does this KCNA question test?
Container Orchestration — This question tests Container Orchestration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: kubectl expose service my-svc --type=LoadBalancer --name=my-svc-lb — Option D is correct because `kubectl expose service my-svc --type=LoadBalancer --name=my-svc-lb` creates a new Service of type LoadBalancer that inherits the selector and port configuration from the existing 'my-svc' Service, which provisions a cloud load balancer (e.g., AWS ELB, GCP TCP/UDP LB) to expose it externally. The `--type=LoadBalancer` flag is essential to request a cloud load balancer, and `--name` specifies the new Service's name to avoid overwriting the original.
What should I do if I get this KCNA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jul 4, 2026
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.
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