XK0-006 Automation, Orchestration, and Scripting Practice Question
A Kubernetes administrator needs to expose a deployment externally using a Service. Which THREE of the following Service types can be used? (Select THREE).
⚠ Common exam trap
The Linux+ exam often tests the distinction between Service types that provide external exposure. Candidates may mistakenly select ExternalName, which only provides a DNS alias and does not actually route traffic to the deployment, or choose Ingress, which is not a Service type but a separate API object.
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
✓
ClusterIP
ClusterIP, LoadBalancer, and NodePort are the three Kubernetes Service types that can be used to expose a deployment externally. ClusterIP alone is internal, but when combined with an Ingress controller, it provides external access by routing traffic from outside the cluster to the Service. LoadBalancer provisions an external load balancer with a public IP. NodePort opens a static port on every node's IP, allowing external traffic. ExternalName (option C) does not expose the deployment; it only maps a Service to an external DNS name, so it is not a valid choice for exposing a deployment externally.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
ClusterIP
Why this is correct
ClusterIP is correct because when used with an Ingress resource, it can expose the deployment externally. Ingress routes external traffic to the ClusterIP Service.
- ✓
LoadBalancer
Why this is correct
LoadBalancer provisions an external load balancer (e.g., from a cloud provider) that distributes traffic to the pods, directly exposing the deployment externally.
- ✗
ExternalName
Why it's wrong here
ExternalName is incorrect. It maps a Service to an external DNS name but does not expose the deployment itself; it is used for referencing external services.
- ✓
NodePort
Why this is correct
NodePort opens a specific port on all nodes, allowing external traffic to reach the Service by using any node's IP address and that port.
- ✗
Ingress
Why it's wrong here
Ingress is not a Service type; it's a separate resource.
Go deeper
Related to this question
Learn chapter
File Transfer and Remote Access
Key term
DNS
DNS is the system that translates human-friendly domain names like example.com into machine-readable IP addresses so computers can find each other on a network.
Key term
Service
A service is a software component or system that performs a specific function and is available to be used by other programs or users over a network.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 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 XK0-006 exam.