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Quiz Linux Foundation - CKA - Accurate Certified Kubernetes Administrator (CKA) Program Exam Real Brain Dumps

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

NEW QUESTION # 50
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:
solution

NEW QUESTION # 51
You have a Kubernetes cluster with a service account named "my-sa" in the "my-namespace" namespace. You need to grant the service account the ability to read and write secrets in the "my-namespace" namespace and the ability to create pods in that namespace.
Create a Role and RoleBinding to achieve this using kubectl commands.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Create the Role: Use the following command to create a role called 'sa-secret-pod-writer' in the 'my- namespace' namespace:
kubectl create role sa-secret-pod-writer--namespace=my-namespace --verb=get--verb=list --verb=watch verb=create --verb=update --verb=delete --verb=patch --resource=secrets --resource=pods --api-groups=""
2. Create the RoleBinding: Bind the role to the service account using the following command:
kubectl create rolebinding sa-secret-pod-writer-binding --namespace=my-namespace --role=sa-secret-pod- writer --serviceaccount=my-namespace:my-sa
3. Verify Access: Try running a pod using the service account "my-sa" in the "my-namespace" namespace. You should be able to successfully create the pod and access secrets within the namespace. You can test this by creating a pod definition with the 'serviceAccountName: my-sa' and include a volume mount to a secret within the "my-namespace" namespace.,

NEW QUESTION # 52
Score: 7%

Task
Given an existing Kubernetes cluster running version 1.20.0, upgrade all of the Kubernetes control plane and node components on the master node only to version 1.20.1.
Be sure to drain the master node before upgrading it and uncordon it after the upgrade.

You are also expected to upgrade kubelet and kubectl on the master node.

Answer:

Explanation:
SOLUTION:
[student@node-1] > ssh ek8s
kubectl cordon k8s-master
kubectl drain k8s-master --delete-local-data --ignore-daemonsets --force apt-get install kubeadm=1.20.1-00 kubelet=1.20.1-00 kubectl=1.20.1-00 --disableexcludes=kubernetes kubeadm upgrade apply 1.20.1 --etcd-upgrade=false systemctl daemon-reload systemctl restart kubelet kubectl uncordon k8s-master

NEW QUESTION # 53
Create a pod as follows:
* Name:mongo
* Using Image:mongo
* In anew Kubernetes namespacenamed:my-website

Answer:

Explanation:
See the solution below.
Explanation
solution

NEW QUESTION # 54
List all configmap and secrets in the cluster in all namespace and write it to a file /opt/configmap-secret

Answer:

Explanation:
kubectl get configmap,secrets --all-namespaces > /opt/configmap-secret // Verify Cat /opt/configmap-secret

NEW QUESTION # 55
......

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