CNCF



            CKA







            Certified Kubernetes Administrator










                                   https://killexams.com/pass4sure/exam-detail/CKA






















     Question: 11

     CORRECT TEXT


    Create and configure the service front-end-service so it’s accessiblethrough NodePort and routes to the existing pod
    named front-end.




    Answer: solution










































    Question: 12

    CORRECT TEXT


    Ensure a single instance of pod nginx is running on each node of the Kubernetes cluster where nginx also represents
    the Image name which has to be used. Do not


    override any taints currently in place.

    Use DaemonSet to complete this task and use ds-kusc00201 as DaemonSet name.





    Answer: solution











































    Question: 13


    CORRECT TEXT

    From the pod label name=cpu-utilizer, find pods running high CPU workloads and write the name of the pod
    consuming most CPU to the file /opt/KUTR00102/KUTR00102.txt (which already exists).





    Answer: solution



















































































    Question: 14


    CORRECT TEXT

    Perform the following tasks:


       Add an init container to hungry-bear (which has been defined in spec file /opt/KUCC00108/pod-spec-
    KUCC00108.yaml)

       The init container should create an empty file named/workdir/calm.txt


       If /workdir/calm.txt is not detected, the pod should exit

       Once the spec file has been updated with the init container definition, the pod should be created




    Answer: solution



















































































    Question: 15


    CORRECT TEXT

    Create a file:


    /opt/KUCC00302/kucc00302.txt that lists all pods that implement service baz in namespace development.

    The format of the file should be one pod name per line.





    Answer: solution



















































































    Question: 16


    CORRECT TEXT

    Create a deployment spec file that will:


       Launch 7 replicas of the nginx Image with the labelapp_runtime_stage=dev

       deployment name: kual00201


    Save a copy of this spec file to /opt/KUAL00201/spec_deployment.yaml

    (or /opt/KUAL00201/spec_deployment.json).


    When you are done, clean up (delete) any new Kubernetes API object that you produced during this task.




    Answer: solution











































    Question: 17

    CORRECT TEXT

    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: solution











































    Question: 18


    CORRECT TEXT

    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: SOLUTION:

    [[email protected]] > 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

    Question: 19


    CORRECT TEXT

    A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform
    any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.


    You can ssh to the failed node using:

    [[email protected]] $ | ssh Wk8s-node-0

    You can assume elevated privileges on the node with the following command:


    [[email protected]] $ | sudo Ci




    Answer: solution



















































































    Question: 20


    CORRECT TEXT

    Create a pod as follows:


       Name: non-persistent-redis

       container Image: redis


       Volume with name: cache-control

       Mount path: /data/redis


    The pod should launch in the staging namespace and the volume must not be persistent.




    Answer: solution














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