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The CKA certification exam is a hands-on test that requires candidates to perform Kubernetes administration tasks using a command line interface. CKA exam evaluates the candidate's ability to deploy and manage Kubernetes clusters, configure networking, and implement security policies. It also tests their knowledge of Kubernetes architecture, troubleshooting, and best practices. CKA Exam is challenging and requires extensive preparation and practice to pass. However, passing the CKA certification exam can significantly enhance the career prospects of Kubernetes professionals, as it is a widely recognized credential in the industry.

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The CKA Certification is recognized by a wide range of organizations and is highly valued by employers who are looking for skilled professionals in the field of container orchestration. Certified Kubernetes Administrator (CKA) Program Exam certification is also a great way for IT professionals to showcase their skills and expertise in Kubernetes and to advance their careers in this rapidly growing field.

Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q50-Q55):

NEW QUESTION # 50
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 # 51
Create a Kubernetes secret as follows:
Name: super-secret
password: bob
Create a pod named pod-secrets-via-file, using the redis Image, which mounts a secret named super-secret at
/secrets.
Create a second pod named pod-secrets-via-env, using the redis Image, which exports password as CONFIDENTIAL

Answer:

Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 B.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 C.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 D.JPG

NEW QUESTION # 52
Create a hostPath PersistentVolume named task-pv-volume with storage 10Gi, access modes ReadWriteOnce, storageClassName manual, and volume at /mnt/data and verify

A. vim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: ""
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
hostPath:
path: "/mnt/data"
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
NAME CAPACITY ACCESS
MODES RECLAIM POLICY STATUS CLAIM
STORAGECLASS REASON AGE
task-pv-volume 4Gi RWO
Retain Available
8s
B. vim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: ""
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
hostPath:
path: "/mnt/data"
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
NAME CAPACITY ACCESS
MODES RECLAIM POLICY STATUS CLAIM
STORAGECLASS REASON AGE
task-pv-volume 5Gi RWO
Retain Available
3s

Answer: B

NEW QUESTION # 53
Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.

Answer:

Explanation:
solution

NEW QUESTION # 54
Create a deployment named "myapp" that having 2 replicas with
nginx image and expose deployment as service named "myservice"

A. // Create a YAML Template
kubectl create deploy myapp --image=nginx --dry-run -o yaml >
myapp.yaml
//Update replicas=2 in myapp.yaml file
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: myapp
name: myapp
spec:
replicas: 2
selector:
matchLabels:
app: myapp
template:
metadata:
labels:
app: myapp
spec:
containers:
- image: nginx
name: nginx
// Create deployment
kubectl create -f myapp.yaml
// Creating YAML template for service
kubectl expose deployment myapp --type=ClusterIP --port=80 --
target-port=80 --name=myservice --dry-run -o yaml >
myservice.yaml
YAML File:
apiVersion: v1
kind: Service
metadata:
labels:
app: myapp
name: myservice
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
app: myapp
type: ClusterIP
kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S)
AGE
kubernetes ClusterIP 10.2.0.1 <none> 443/TCP
158d
myservice ClusterIP 10.2.96.175 <none> 80/TCP
40s
B. // Create a YAML Template
kubectl create deploy myapp --image=nginx --dry-run -o yaml >
myapp.yaml
//Update replicas=2 in myapp.yaml file
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: myapp
name: myapp
spec:
replicas: 2
selector:
matchLabels:
app: myapp
template:
metadata:
labels:
app: myapp
spec:
containers:
- image: nginx
name: nginx
// Create deployment
kubectl create -f myapp.yaml
// Creating YAML template for service
kubectl expose deployment myapp --type=ClusterIP --port=60 --
target-port=60 --name=myservice --dry-run -o yaml >
myservice.yaml
YAML File:
apiVersion: v1
kind: Service
metadata:
labels:
app: myapp
name: myservice
spec:
ports:
- port: 60
protocol: TCP
targetPort: 80
selector:
app: myapp
type: ClusterIP
kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S)
AGE
kubernetes ClusterIP 10.2.0.1 <none> 443/TCP
158d
myservice ClusterIP 10.2.96.175 <none> 80/TCP
40s

Answer: A

NEW QUESTION # 55
......

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