LINUX FOUNDATION CKA EXAM QUESTIONS UPDATES ARE FREE FOR ONE YEAR

Linux Foundation CKA Exam Questions Updates Are Free For one year

Linux Foundation CKA Exam Questions Updates Are Free For one year

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The CKA exam is designed to test an individual's ability to perform real-world tasks in a Kubernetes environment. CKA exam is conducted online and consists of a set of performance-based tasks that need to be completed within a given time frame. CKA exam covers a range of topics such as Kubernetes architecture, installation and configuration, networking, storage, security, and troubleshooting. CKA Exam is challenging and requires a high level of expertise in Kubernetes administration. However, passing the exam is a testament to an individual's skills and knowledge in Kubernetes and can lead to better job opportunities and career growth in the industry.

Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q21-Q26):

NEW QUESTION # 21
Evict all existing pods from a node-1 and make the node unschedulable for new pods.

  • A. kubectl get nodes
    kubectl drain node-1 #It will evict pods running on node-1 to
    other nodes in the cluster
    kubectl cordon node-1 # New pods cannot be scheduled to the
    node
    // Verify
    kubectl get no
    When you cordon a node, the status shows "SchedulingDisabled"
  • B. kubectl get nodes
    kubectl drain node-1 #It will evict pods running on node-1 to
    other nodes in the cluster
    // Verify
    kubectl get no
    When you cordon a node, the status shows "SchedulingDisabled"

Answer: A


NEW QUESTION # 22
Create a Pod with main container busybox and which executes this
"while true; do echo 'Hi I am from Main container' >>
/var/log/index.html; sleep 5; done" and with sidecar container
with nginx image which exposes on port 80. Use emptyDir Volume
and mount this volume on path /var/log for busybox and on path
/usr/share/nginx/html for nginx container. Verify both containers
are running.

  • A. // create an initial yaml file with this
    kubectl run multi-cont-pod --image=busbox --restart=Never --
    dry-run -o yaml > multi-container.yaml
    // edit the yml as below and create it
    kubectl create -f multi-container.yaml
    vim multi-container.yaml
    apiVersion: v1
    kind: Pod
    metadata:
    labels:
    run: multi-cont-pod
    name: multi-cont-pod
    spec:
    volumes:
    - image: busybox
    command: ["/bin/sh"]
    args: ["-c", "while true; do echo 'Hi I am from Main
    container' >> /var/log/index.html; sleep 5;done"]
    name: main-container
    volumeMounts:
    - name: var-logs
    mountPath: /var/log
    - image: nginx
    name: sidecar-container
    ports:
    mountPath: /usr/share/nginx/html
    restartPolicy: Never
    // Create Pod
    kubectl apply -f multi-container.yaml
    //Verify
    kubectl get pods
  • B. // create an initial yaml file with this
    kubectl run multi-cont-pod --image=busbox --restart=Never --
    dry-run -o yaml > multi-container.yaml
    // edit the yml as below and create it
    kubectl create -f multi-container.yaml
    vim multi-container.yaml
    apiVersion: v1
    kind: Pod
    metadata:
    labels:
    run: multi-cont-pod
    name: multi-cont-pod
    spec:
    volumes:
    - name: var-logs
    emptyDir: {}
    containers:
    - image: busybox
    command: ["/bin/sh"]
    args: ["-c", "while true; do echo 'Hi I am from Main
    container' >> /var/log/index.html; sleep 5;done"]
    name: main-container
    volumeMounts:
    - name: var-logs
    mountPath: /var/log
    - image: nginx
    name: sidecar-container
    ports:
    - containerPort: 80
    volumeMounts:
    - name: var-logs
    mountPath: /usr/share/nginx/html
    restartPolicy: Never
    // Create Pod
    kubectl apply -f multi-container.yaml
    //Verify
    kubectl get pods

Answer: B


NEW QUESTION # 23
For this item, you will have to ssh to the nodes ik8s-master-0 and ik8s-node-0 and complete all tasks on these nodes. Ensure that you return to the base node (hostname: node-1) when you have completed this item.
Context
As an administrator of a small development team, you have been asked to set up a Kubernetes cluster to test the viability of a new application.
Task You must use kubeadm to perform this task. Any kubeadm invocations will require the use of the --ignore-preflight-errors=all option.
Configure the node ik8s-master-O as a master node. .
Join the node ik8s-node-o to the cluster.

Answer:

Explanation:
solution
You must use the kubeadm configuration file located at /etc/kubeadm.conf when initializing your cluster.
You may use any CNI plugin to complete this task, but if you don't have your favourite CNI plugin's manifest URL at hand, Calico is one popular option: https://docs.projectcalico.org/v3.14/manifests/calico.yaml Docker is already installed on both nodes and apt has been configured so that you can install the required tools.


NEW QUESTION # 24
Create a busybox pod which executes this command sleep 3600 with the service account admin and verify

  • A. kubectl run busybox --image=busybox --restart=Always --dry-run
    -o yaml -- /bin/sh -c "sleep 3600" > busybox.yml
    // Edit busybox.yaml file
    apiVersion: v1
    kind: Pod
    metadata:
    creationTimestamp: null
    labels:
    run: busybox
    name: busybox
    spec:
    serviceAccountName: admin
    containers:
    - args:
    - /bin/sh
    - -c
    - sleep 3800
    image: busybox
    name: busybox
    restartPolicy: Always
    // verify
    K kubectl describe po busybox
  • B. kubectl run busybox --image=busybox --restart=Always --dry-run
    -o yaml -- /bin/sh -c "sleep 3600" > busybox.yml
    // Edit busybox.yaml file
    apiVersion: v1
    kind: Pod
    metadata:
    creationTimestamp: null
    labels:
    run: busybox
    name: busybox
    spec:
    serviceAccountName: admin
    containers:
    - args:
    - /bin/sh
    - -c
    - sleep 3600
    image: busybox
    name: busybox
    restartPolicy: Always
    // verify
    K kubectl describe po busybox

Answer: B


NEW QUESTION # 25
Create a pod as follows:
Name: mongo
Using Image: mongo
In a new Kubernetes namespace named: my-website

Answer:

Explanation:
See the solution below.
Explanation
solution
F:WorkData Entry WorkData Entry20200827CKA9 B.JPG


NEW QUESTION # 26
......

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