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| Certification Vendor: | Linux Foundation |
|---|---|
| Exam Name: | Certified Kubernetes Administrator (CKA) Exam |
| Exam Number: | CKA |
| Passing Score: | 66% |
| Exam Price: | $395 USD |
| Certificate Validity Period: | 3 years |
| Exam Format: | Online proctored, Open-book (official Kubernetes documentation allowed), Performance-based practical exam |
| Related Certifications: | Certified Kubernetes Security Specialist (CKS) Certified Kubernetes Application Developer (CKAD) |
| Available Languages: | English |
| Real Exam Qty: | 15-20 performance-based tasks |
| Exam Duration: | 120 minutes |
| Recommended Training: | Kubernetes for Administrators (CKA preparation courses) Kubernetes Fundamentals (LFS258) |
| Exam Registration: | Official CKA Registration |
| Sample Questions: | Linux Foundation CKA Sample Questions |
| Exam Way: | Online proctored exam with remote environment |
| Pre Condition: | No formal prerequisites required, but strong hands-on Kubernetes experience is recommended |
| Official Syllabus URL: | https://training.linuxfoundation.org/certification/certified-kubernetes-administrator-cka/ |
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Linux Foundation CKA (Certified Kubernetes Administrator) program is an advanced certification program that focuses on the container orchestration technology, Kubernetes. The CKA exam is designed to test the skills and knowledge of administrators in Kubernetes and certify them as experts in the field. The program is highly respected in the industry and is recognized as a standard for Kubernetes certification.
NEW QUESTION # 10
Create a deployment as follows:
* Name: nginx-random
* Exposed via a service nginx-random
* Ensure that the service and pod are accessible via their respective DNS records
* The container(s) within any pod(s) running as a part of this deployment should use the nginx Image Next, use the utility nslookup to look up the DNS records of the service and pod and write the output to /opt
/KUNW00601/service.dns and /opt/KUNW00601/pod.dns respectively.
Answer:
Explanation:
Solution:
NEW QUESTION # 11
Monitor the logs of pod foo and:
* Extract log lines corresponding to error
unable-to-access-website
* Write them to/opt/KULM00201/foo
Answer:
Explanation:
Step 0: Set the correct Kubernetes context
If you're given a specific context (k8s in this case), you must switch to it:
kubectl config use-context k8s
## Skipping this can cause you to work in the wrong cluster/namespace and cost you marks.
Step 1: Identify the namespace of the pod foo
First, check if foo is running in a specific namespace or in the default namespace.
kubectl get pods --all-namespaces | grep foo
Assume the pod is in the default namespace if no namespace is mentioned.
Step 2: Confirm pod foo exists and is running
kubectl get pod foo
You should get output similar to:
NAME READY STATUS RESTARTS AGE
foo 1/1 Running 0 1h
If the pod is not running, logs may not be available.
Step 3: View logs and filter specific error lines
We're looking for log lines that contain:
unable-to-access-website
Command:
kubectl logs foo | grep "unable-to-access-website"
Step 4: Write the filtered log lines to a file
Redirect the output to the required path:
kubectl logs foo | grep "unable-to-access-website" > /opt/KULM00201/foo
# This creates or overwrites the file /opt/KULM00201/foo with the filtered logs.
# You may need sudo if /opt requires elevated permissions. But in most exam environments, you're already the root or privileged user.
Step 5: Verify the output file (optional but smart)
Check that the file was created and has the correct content:
cat /opt/KULM00201/foo
# Final Answer Summary:
kubectl config use-context k8s
kubectl logs foo | grep "unable-to-access-website" > /opt/KULM00201/foo
NEW QUESTION # 12
Score: 7%
Task
Reconfigure the existing deployment front-end and add a port specification named http exposing port 80/tcp of the existing container nginx.
Create a new service named front-end-svc exposing the container port http.
Configure the new service to also expose the individual Pods via a NodePort on the nodes on which they are scheduled.
Answer:
Explanation:
See the solution below.
Explanation
Solution:
kubectl get deploy front-end
kubectl edit deploy front-end -o yaml
#port specification named http
#service.yaml
apiVersion: v1
kind: Service
metadata:
name: front-end-svc
labels:
app: nginx
spec:
ports:
- port: 80
protocol: tcp
name: http
selector:
app: nginx
type: NodePort
# kubectl create -f service.yaml
# kubectl get svc
# port specification named http
kubectl expose deployment front-end --name=front-end-svc --port=80 --tarport=80 --type=NodePort
NEW QUESTION # 13
Create a busybox pod that runs the command "env" and save the output to "envpod" file
Answer:
Explanation:
kubectl run busybox --image=busybox --restart=Never --rm -it -- env > envpod.yaml
NEW QUESTION # 14
Get the memory and CPU usage of all the pods and find out top 3 pods which have the highest usage and put them into the cpuusage.txt file
Answer: A
NEW QUESTION # 15
......
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