How should I use these Application Deployment And Lifecycle practice questions?

Read each scenario carefully and choose your answer before revealing the explanation. Then check why your choice was right or wrong. Repeat until the reasoning feels automatic.

EX280 · topic practice

Application Deployment And Lifecycle practice questions

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Yes — use the session launcher on this page to start a 10-, 20-, 30- or 50-question session drawn entirely from the Application Deployment And Lifecycle domain.

Practise Red Hat Certified OpenShift Administrator (EX280, OpenShift Container Platform 4.14+) (EX280) Application Deployment And Lifecycle practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security

20 questionsDomain: Application Deployment And Lifecycle

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What the exam tests

What to know about Application Deployment And Lifecycle

Application Deployment And Lifecycle questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Application Deployment And Lifecycle exam traps

▸Answering from memory before reading the full scenario.
▸Missing a constraint such as cost, availability, security, scope or command context.
▸Choosing a broad answer when the question asks for the most specific fix.
▸Ignoring why the wrong options are tempting.

Practice set

Application Deployment And Lifecycle questions

20 questions · select your answer, then reveal the explanation

Question 1easymultiple choice

Read the full Application Deployment And Lifecycle explanation →

An administrator needs to deploy a packaged Helm chart onto an OpenShift 4.14 cluster from a private Helm repository. Which oc command should be used to install the chart while securely managing repository credentials?

Trap 1: oc adm helm install my-release private-repo/chart-name

'oc adm helm' is not a valid subcommand in OpenShift 4.

Trap 2: oc create helmchart --name=my-release --source=private-repo

OpenShift does not have a 'create helmchart' subcommand.

Trap 3: oc new-app --helm-chart=private-repo/chart-name

'oc new-app' does not natively accept raw Helm chart references directly from private repositories without operator backing.

Study all Application Deployment And Lifecycle common traps →

A
oc adm helm install my-release private-repo/chart-name
Why wrong: 'oc adm helm' is not a valid subcommand in OpenShift 4.
B
helm install my-release private-repo/chart-name --repo https://charts.example.com
The standard 'helm' CLI is used to install charts on OpenShift once authenticated to the cluster context.
C
oc create helmchart --name=my-release --source=private-repo
Why wrong: OpenShift does not have a 'create helmchart' subcommand.
D
oc new-app --helm-chart=private-repo/chart-name
Why wrong: 'oc new-app' does not natively accept raw Helm chart references directly from private repositories without operator backing.

Application Deployment And Lifecycle practice questions

What to know about Application Deployment And Lifecycle

Common Application Deployment And Lifecycle exam traps

Application Deployment And Lifecycle questions

An administrator needs to deploy a packaged Helm chart onto an OpenShift 4.14 cluster from a private Helm repository. Which oc command should be used to install the chart while securely managing repository credentials?

How do you define a command to run immediately before a container starts, such as a database migration?

An OpenShift administrator needs to trigger a rollback of a Deployment to its previous working revision after a failed update. Which oc command should be used?

A developer has created a Kustomization file that applies a namespace prefix and some patches to base Kubernetes manifests. How can the developer apply these manifests to an OpenShift cluster using standard oc tooling without installing standalone Kustomize?

A DeploymentConfig in OpenShift has a Rolling strategy defined. Which parameter in the strategy configuration controls the maximum number of pods that can be created above the desired replica count during the update?

An administrator needs to deploy a Helm chart into an OpenShift cluster while overriding specific chart values using a local YAML file. Which Helm CLI command should be executed?

An administrator needs to view the rollout history of a DeploymentConfig named web-frontend. Which command accomplishes this?

A BuildConfig uses an S2I strategy and needs to pull private base images from a secured external container registry. Where must the administrator configure the pull credentials so the builder pod can authenticate?

A developer wants to track multiple versions and tags of container images within an OpenShift cluster efficiently. Which OpenShift resource provides this capability?

An administrator needs to deploy a containerized web application using a Git repository as the source without writing a Dockerfile. Which OpenShift build strategy should be used?

A developer wants to inspect the generated Kubernetes manifests from a Helm chart without actually installing the chart into the OpenShift cluster. Which Helm command should be used?

During an S2I build, an administrator needs to pass sensitive build arguments, such as subscription keys, without hardcoding them into the BuildConfig or exposing them in the final image history. How should this be handled?

An administrator needs to perform a canary deployment strategy using standard OpenShift Deployment resources (not DeploymentConfigs). What is the standard Kubernetes/OpenShift native mechanism to route a small percentage of traffic to the canary deployment?

A developer has deployed a Helm chart in OpenShift and needs to list all currently installed Helm releases in the current namespace. Which command should be used?

An OpenShift cluster administrator needs to ensure that custom S2I builder images stored in an insecure internal registry can be successfully pulled by build pods without failing TLS verification. Where must the insecure registry be defined?

An administrator wants to pause rollouts on a DeploymentConfig named backend-api to make multiple configuration changes without triggering intermediate builds or rollouts. Which command pauses the rollout?

An administrator needs to configure a BuildConfig so that whenever a new image is pushed to a dependent ImageStream tag, a new build is automatically triggered. Which trigger type must be added to the BuildConfig?

An administrator needs to completely remove a Helm release named my-redis from the cluster, including its history. Which Helm command should be executed?

A developer is using Kustomize to manage environment overlays (dev and prod) for an OpenShift application. Where should the common base resources be referenced in the prod/kustomization.yaml file?

An administrator is configuring a DeploymentConfig in OpenShift and wants to set up automated triggers for new rollouts. Which TWO trigger types are natively supported in a DeploymentConfig spec? (Choose two.)

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