BTW, DOWNLOAD part of VCEPrep CKA dumps from Cloud Storage: https://drive.google.com/open?id=187XdBr4dc1LlrNzi9q6hJE6GX2VmOOtI
Our CKA study materials are widely read and accepted by people. Through careful adaption and reorganization, all knowledge will be integrated in our CKA real exam. The explanations of our CKA exam materials also go through strict inspections. So what you have learned are absolutely correct. All in all, we have invested many efforts on compiling of the CKA Practice Guide. At last, we will arrange proofreaders to check the study materials.
| Section | Weight | Objectives |
|---|---|---|
| Troubleshooting | 30% | - Understand how to monitor applications - Troubleshoot networking - Troubleshoot application failure - Evaluate cluster and node logging - Manage container stdout & stderr logs - Troubleshoot cluster component failure |
| Cluster Architecture, Installation & Configuration | 25% | - Understand extension interfaces (CNI, CSI, CRI, etc.) - Use Helm and Kustomize to install cluster components - Implement and configure a highly-available control plane - Prepare underlying infrastructure for installing a Kubernetes cluster - Understand CRDs, install and configure operators - Create and manage Kubernetes clusters using kubeadm - Manage role based access control (RBAC) - Manage the lifecycle of Kubernetes clusters |
| Workloads & Scheduling | 15% | - Use ConfigMaps and Secrets to configure applications - Understand how scheduler works - Understand Deployments and rolling update/rollback - Understand resource limits and requests - Use label selectors to schedule Pods - Understand DaemonSets - Understand Static Pods - Understand how to run multiple schedulers and configure scheduler policies |
| Services & Networking | 20% | - Understand connectivity between Pods - Understand and use CoreDNS - Define and enforce Network Policies - Use the Gateway API to manage Ingress traffic - Know how to use Ingress controllers and Ingress resources - Use ClusterIP, NodePort, LoadBalancer service types and endpoints |
| Storage | 10% | - Understand Storage Classes and Persistent Volumes - Understand persistent volume claims primitive - Understand how to configure applications with persistent storage - Understand volume mode, access modes and reclaim policies |
We update our Linux Foundation CKA exam dumps over time and mark the changes online. Enroll in the Linux Foundation CKA exam dumps and start your preparation with Linux Foundation CKA practice questions. We will provide you with the information covered in the current test and incorporate materials that originate from Linux Foundation CKA Exam Dumps. You will get a handful of knowledge about topics that will benefit your professional career.
NEW QUESTION # 27
Create a redis pod and expose it on port 6379
Answer: B
NEW QUESTION # 28
Score:7%
Context
An existing Pod needs to be integrated into the Kubernetes built-in logging architecture (e. g. kubectl logs).
Adding a streaming sidecar container is a good and common way to accomplish this requirement.
Task
Add a sidecar container named sidecar, using the busybox Image, to the existing Pod big-corp-app. The new sidecar container has to run the following command:
/bin/sh -c tail -n+1 -f /va r/log/big-corp-app.log
Use a Volume, mounted at /var/log, to make the log file big-corp-app.log available to the sidecar container.
Answer:
Explanation:
Solution:
#
kubectl get pod big-corp-app -o yaml
#
apiVersion: v1
kind: Pod
metadata:
name: big-corp-app
spec:
containers:
- name: big-corp-app
image: busybox
args:
- /bin/sh
- -c
- >
i=0;
while true;
do
echo "$(date) INFO $i" >> /var/log/big-corp-app.log;
i=$((i+1));
sleep 1;
done
volumeMounts:
- name: logs
mountPath: /var/log
- name: count-log-1
image: busybox
args: [/bin/sh, -c, 'tail -n+1 -f /var/log/big-corp-app.log']
volumeMounts:
- name: logs
mountPath: /var/log
volumes:
- name: logs
emptyDir: {
}
#
kubectl logs big-corp-app -c count-log-1
NEW QUESTION # 29
Delete the pod without any delay (force delete)
Answer:
Explanation:
Kubect1 delete po "POD-NAME" --grace-period=0 --force
NEW QUESTION # 30
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 # 31
Score:7%
Context
An existing Pod needs to be integrated into the Kubernetes built-in logging architecture (e. g. kubectl logs). Adding a streaming sidecar container is a good and common way to accomplish this requirement.
Task
Add a sidecar container named sidecar, using the busybox Image, to the existing Pod big-corp-app. The new sidecar container has to run the following command:
/bin/sh -c tail -n+1 -f /va r/log/big-corp-app.log
Use a Volume, mounted at /var/log, to make the log file big-corp-app.log available to the sidecar container.
Answer:
Explanation:
Solution:
#
kubectl get pod big-corp-app -o yaml
#
apiVersion: v1
kind: Pod
metadata:
name: big-corp-app
spec:
containers:
- name: big-corp-app
image: busybox
args:
- /bin/sh
- -c
- >
i=0;
while true;
do
echo "$(date) INFO $i" >> /var/log/big-corp-app.log;
i=$((i+1));
sleep 1;
done
volumeMounts:
- name: logs
mountPath: /var/log
- name: count-log-1
image: busybox
args: [/bin/sh, -c, 'tail -n+1 -f /var/log/big-corp-app.log']
volumeMounts:
- name: logs
mountPath: /var/log
volumes:
- name: logs
emptyDir: {
}
#
kubectl logs big-corp-app -c count-log-1
NEW QUESTION # 32
......
If you fail CKA exam unluckily, don’t worry about it, because we provide full refund for everyone who failed the exam. You can ask for a full refund once you show us your unqualified transcript to our staff. The whole process is time-saving and brief, which would help you pass the next CKA Exam successfully. Please contact us through email when you need us. The CKA question dumps produced by our company, is helpful for our customers to pass their exams and get the CKA certification within several days. Our CKA exam questions are your best choice.
Latest CKA Exam Price: https://www.vceprep.com/CKA-latest-vce-prep.html
BTW, DOWNLOAD part of VCEPrep CKA dumps from Cloud Storage: https://drive.google.com/open?id=187XdBr4dc1LlrNzi9q6hJE6GX2VmOOtI