EX280 Application Deployment And Lifecycle Practice Question
An ImageStream named 'frontend' in a project contains multiple tags, including 'latest' and 'v1.0'. You want to update an existing Deployment to specifically use the 'v1.0' tag of this ImageStream. Where must this reference be updated in the Deployment specification?
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
✓
In the spec.template.spec.containers[].image field pointing to image-registry.openshift-image-registry.svc:5000/namespace/frontend:v1.0.
ImageStreamTags or ImageStreamImages are referenced inside the container image field within the pod template of a Deployment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
In the spec.imageStreamRef field.
Why it's wrong here
There is no standard spec.imageStreamRef field in a Kubernetes Deployment spec.
- ✗
In the metadata.annotations['openshift.io/image.in-cluster'] field.
Why it's wrong here
Annotations do not drive container image resolution for application workloads.
- ✓
In the spec.template.spec.containers[].image field pointing to image-registry.openshift-image-registry.svc:5000/namespace/frontend:v1.0.
Why this is correct
Deployments reference ImageStreams via the internal registry URL path format namespace/imagestream:tag.
- ✗
In the spec.strategy.rollingUpdate.image field.
Why it's wrong here
Rolling update strategies do not define container image targets.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Red Hat exam blueprint
This EX280 practice question is part of Courseiva's free Red Hat 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 EX280 exam.