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Application Deployment practice questions

Practise Certified Kubernetes Application Developer CKAD Application Deployment 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
Practice 10 questionsBrowse domain →

What the exam tests

What to know about Application Deployment

Application Deployment 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 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 questions

20 questions · select your answer, then reveal the explanation

Question 1easymultiple choice
Read the full Application Deployment explanation →

A developer wants to deploy a stateless application as a set of identical pods. They need the pods to be distributed across nodes and have stable network identities. Which resource should they use?

Question 2mediummultiple choice
Read the full DNS explanation →

A team is deploying a microservice that must be reachable within the cluster via a stable DNS name. They also need to distribute traffic among pods. Which Kubernetes resource provides both service discovery and load balancing?

Question 3hardmultiple choice
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During a deployment update, the rollout is stuck and new pods are not becoming ready. The developer checks the events and sees 'Back-off restarting failed container'. What is the most likely cause?

Question 4easymultiple choice
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A developer needs to run a one-time batch job to process data. After completion, the pod should be retained for logs inspection. Which Job configuration parameter should be set?

Question 5mediummultiple choice
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A company wants to deploy a stateful database cluster where each pod has its own persistent storage. They need stable network identities and ordered pod creation. Which resource should they use?

Question 6hardmultiple choice
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A Deployment has replicas: 5. During a rolling update, the developer sets maxSurge: 2 and maxUnavailable: 1. What is the maximum number of pods that can be running during the update?

Question 7easymultiple choice
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A developer wants to ensure that a critical application always runs on every node in the cluster. Which resource should they use?

Question 8mediummultiple choice
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A pod is running but not responding to requests. The developer suspects the liveness probe is misconfigured. Which command can they use to check the probe configuration of a running pod?

Question 9hardmultiple choice
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A Deployment has replicas: 3 and uses a ConfigMap. The ConfigMap is updated. The developer wants to update the pods to use the new ConfigMap without recreating the Deployment. What is the correct approach?

Question 10easymulti select
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Which TWO of the following are valid strategies for updating a Deployment?

Question 11mediummulti select
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Which THREE of the following are valid ways to expose a set of pods as a network service?

Question 12hardmulti select
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Which TWO of the following conditions must be met for a RollingUpdate to proceed?

Question 13hardmultiple choice
Read the full DNS explanation →

You are deploying a multi-tier application consisting of a frontend web service and a backend API. The frontend is deployed as a Deployment with 3 replicas, exposed via a ClusterIP Service named 'frontend-svc'. The backend is a StatefulSet with 3 replicas, each with its own PersistentVolumeClaim, and exposed via a headless Service named 'backend-svc'. The backend pods need to discover each other via DNS for clustering. After deployment, the backend pods cannot resolve the hostnames of other backend pods. The frontend can reach the backend via the Service name. You verify that the StatefulSet and its Service are correctly named. What is the most likely cause of the issue?

Question 14mediummultiple choice
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You are responsible for deploying a critical application that must be highly available. The application consists of a single pod that should always be running on a node that has an SSD. You have two node pools: one with standard HDD and one with SSD. The application must be rescheduled immediately if the node fails. You create a Deployment with replicas: 1 and a nodeSelector for the SSD label. However, after a node failure, the pod is not rescheduled on another SSD node for several minutes. You check the Deployment and it shows the desired replica count is 1 but the current replica count is 0. What is the most likely reason for the delay?

Question 15mediummultiple choice
Read the full NAT/PAT explanation →

A company wants to deploy a stateless web application on Kubernetes. The application needs to be accessible externally via a stable IP address and should support SSL termination at the ingress level. Which resource should be used to route external traffic to the application?

Question 16easymultiple choice
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A developer needs to deploy a container that runs a batch job to process data once and then exit. The job should be restarted only if it fails. Which Kubernetes resource should be used?

Question 17hardmultiple choice
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A team is deploying a microservice that requires a ConfigMap mounted as a volume. The ConfigMap is expected to be updated frequently, and the application should read the latest values without restarting. Which volume type should be used?

Question 18mediummultiple choice
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A company wants to deploy a stateful database on Kubernetes. The database requires stable network identities and persistent storage per pod. Which resource should be used?

Question 19hardmultiple choice
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The exhibit shows a Deployment configuration. The application's /health endpoint returns HTTP 200 only after 30 seconds, while /ready returns 200 immediately. After applying this Deployment, what is the expected behavior?

Exhibit

Refer to the exhibit.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: web
spec:
  replicas: 3
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      containers:
      - name: nginx
        image: nginx:1.19
        ports:
        - containerPort: 80
        livenessProbe:
          httpGet:
            path: /health
            port: 80
          initialDelaySeconds: 30
          periodSeconds: 10
        readinessProbe:
          httpGet:
            path: /ready
            port: 80
          initialDelaySeconds: 5
          periodSeconds: 5
Question 20easymulti select
Read the full Application Deployment explanation →

A developer is creating a Deployment with 4 replicas. The application requires a rolling update with zero downtime. Which TWO strategies ensure zero downtime during an update?

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Frequently asked questions

What does the CKAD exam test about Application Deployment?
Application Deployment questions test whether you can apply the concept in context, not just recognise a definition.
How should I use these practice questions?
Select your answer before revealing the explanation. Then read why each option is right or wrong — this active recall approach builds retention far faster than re-reading notes.
Can I practise just Application Deployment questions in a focused session?
Yes — the session launcher on this page draws every question from the Application Deployment domain. Use a 10-question session first to gauge your baseline, then move to 20 or 30 once the weak spots are clear.
Where can I practise other CKAD topics?
Use the topic links above to move to related areas, or go back to the CKAD question bank to see all topics.
Are these real exam questions or dumps?
These are original practice questions written to test the same concepts the CKAD exam covers. They are not copied from any real exam or dump site.