200-901 Application Deployment and Security Practice Question
A company deploys a microservice using Kubernetes. The service must be accessible externally via a stable IP address and load-balanced across pods. Which Service type should be used?
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
✓
LoadBalancer
LoadBalancer exposes the service externally using a cloud provider's load balancer. ClusterIP is internal only, NodePort exposes on each node's IP, ExternalName maps to external DNS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
NodePort
Why it's wrong here
NodePort exposes on a static port on each node, but not always a stable external IP.
- ✗
ClusterIP
Why it's wrong here
ClusterIP is only reachable within the cluster.
- ✓
LoadBalancer
Why this is correct
LoadBalancer provides an external IP and load balancing.
- ✗
ExternalName
Why it's wrong here
ExternalName returns a CNAME record, not for load balancing.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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