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The CKA Certification Exam is a hands-on, performance-based exam that tests the candidate's ability to perform various tasks related to Kubernetes. CKA exam consists of a set of practical tasks that the candidate must complete within a set time period. The tasks are designed to test the candidate's knowledge of Kubernetes and their ability to use Kubernetes to deploy, manage, and scale containerized applications.
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The CKA exam is a hands-on, performance-based exam that requires candidates to perform tasks on a live Kubernetes cluster. CKA exam lasts for two hours and consists of 24 performance-based tasks. Candidates must complete all tasks within the allocated time frame to pass the exam. CKA Exam is proctored, and candidates must have a webcam to ensure the integrity of the exam.
NEW QUESTION # 56
Delete the above pod and create again from the same yaml file
and verifies there is no "test-file.txt" in the path /data/redis
(Since non-persistent storage "emptyDir" is used).
Answer:
Explanation:
kubectl delete pod test-redis kubectl create -f test-redis.yaml kubectl exec -it test-redis /bin/sh cat /data/redis/file.txt // file doesn't exist
NEW QUESTION # 57
List "nginx-dev" and "nginx-prod" pod and delete those pods
Answer:
Explanation:
See the solution below.
Explanation
kubect1 get pods -o wide
kubectl delete po "nginx-dev"kubectl delete po "nginx-prod"
NEW QUESTION # 58
You have a Kubernetes cluster with multiple namespaces. You need to set up RBAC to allow a specific user, "developer", to only deploy and manage pods within the "dev" namespace, but restrict access to other resources.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Create the following YAML files:
1. Role.yaml:
2. RoleBinding.yaml:
Solution (Step by Step) : 1 . Create the Role: Apply the 'Role.yamP file using 'kubectl apply -f Role.yamr. This defines the permissions granted to the role 'pod-manager-dev' within the 'dev' namespace. 2. Create the RoleBinding: Apply the 'RoleBinding.yaml' file using 'kubectl apply -f RoleBinding.yaml'. This binds the 'pod-manager-dev' role to the user 'developer' , allowing them to access resources defined in the role. 3. Verify Access: As the user 'developer' , try deploying a pod or managing deployments within the 'dev' namespace. Verify that the user has the necessary permissions. 4. Test Restrictions: Try accessing resources outside the 'dev' namespace or trying actions not defined in the role (e.g., creating a service in the 'dev' namespace). Verify that the user is denied access.
NEW QUESTION # 59
You must connect to the correct host.
Failure to do so may result in a zero score.
[candidate@base] $ ssh Cka000022
Task
Reconfigure the existing Deployment front-end in namespace spline-reticulator to expose port 80/tcp of the existing container nginx .
Create a new Service named front-end-svc exposing the container port 80/tcp .
Configure the new Service to also expose the individual Pods via a NodePort .
Answer:
Explanation:
Task Summary
* SSH into cka000022 #
* Modify an existing Deployment:
* Namespace: spline-reticulator
* Deployment: front-end
* Container: nginx
* Expose: port 80/tcp
* Create a Service:
* Name: front-end-svc
* Type: NodePort
* Port: 80 # container port 80
# Step-by-Step Solution
1## SSH into the correct node
ssh cka000022
## Skipping this = zero score
2## Edit the Deployment to expose port 80
kubectl edit deployment front-end -n spline-reticulator
Under containers: # nginx, add this if not present:
ports:
- containerPort: 80
protocol: TCP
# This enables the container to accept traffic on port 80.
3## Create a NodePort Service
Create a file named front-end-svc.yaml:
cat <<EOF > front-end-svc.yaml
apiVersion: v1
kind: Service
metadata:
name: front-end-svc
namespace: spline-reticulator
spec:
type: NodePort
selector:
app: front-end
ports:
- port: 80
targetPort: 80
protocol: TCP
EOF
## Make sure the Deployment has a matching label selector like app: front-end. You can verify with:
kubectl get deployment front-end -n spline-reticulator -o yaml | grep labels -A 2
4## Apply the service
kubectl apply -f front-end-svc.yaml
5## Verify
Check if the service is created and has a NodePort assigned:
kubectl get svc front-end-svc -n spline-reticulator
# You should see something like:
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
front-end-svc NodePort 10.96.0.123 <none> 80:3XXXX/TCP 10s
Where 3XXXX is your automatically assigned NodePort (between 30000-32767).
Final Command Summary
ssh cka000022
kubectl edit deployment front-end -n spline-reticulator
# Add:
# ports:
# - containerPort: 80
cat <<EOF > front-end-svc.yaml
apiVersion: v1
kind: Service
metadata:
name: front-end-svc
namespace: spline-reticulator
spec:
type: NodePort
selector:
app: front-end
ports:
- port: 80
targetPort: 80
protocol: TCP
EOF
kubectl apply -f front-end-svc.yaml
kubectl get svc front-end-svc -n spline-reticulator
NEW QUESTION # 60
Create a Pod with three busy box containers with commands "ls; sleep 3600;", "echo Hello World; sleep 3600;" and "echo this is the third container; sleep 3600" respectively and check the status
Answer: A
NEW QUESTION # 61
......
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