• Home
  • Articles
  • Latest Jan 11, 2022 CKA Brain Dump A Study Guide with Tips & Tricks for passing Exam [Q29-Q53]

Latest Jan 11, 2022 CKA Brain Dump A Study Guide with Tips & Tricks for passing Exam [Q29-Q53]

Share

Latest Jan 11, 2022 CKA Brain Dump: A Study Guide with Tips & Tricks for passing Exam

CKA Question Bank: Free PDF Download Recently Updated Questions


Linux Foundation CKA Exam Syllabus Topics:

TopicDetails
Topic 1
  • Manage role based access control (RBAC)
  • Know how to scale applications
  • Understand the primitives used to create robust
Topic 2
  • Understand connectivity between Pods
  • Troubleshoot application failure
  • Use Kubeadm to install a basic cluster
Topic 3
  • Know how to configure and use CoreDNS
  • Troubleshoot cluster component failure
  • Implement etcd backup and restore
Topic 4
  • Understand host networking configuration on the cluster nodes
  • Evaluate cluster and node logging
Topic 5
  • Perform a version upgrade on a Kubernetes cluster using Kubeadm
  • Understand volume mode, access modes and reclaim policies for volumes
Topic 6
  • Understand deployments and how to perform rolling update and rollbacks
  • Manage a highly-available Kubernetes cluster
Topic 7
  • Know how to use Ingress controllers and Ingress resources
  • Understand how to monitor applications
Topic 8
  • Understand how resource limits can affect Pod scheduling
  • Use ConfigMaps and Secrets to configure applications
Topic 9
  • Awareness of manifest management and common templating tools
  • Understand storage classes, persistent volumes
Topic 10
  • Provision underlying infrastructure to deploy a Kubernetes cluster
  • Manage container stdout & stderr logs
Topic 11
  • Choose an appropriate container network interface plugin
  • Know how to configure applications with persistent storage
Topic 12
  • Understand ClusterIP, NodePort, LoadBalancer service types and endpoints
  • Understand persistent volume claims primitive

 

NEW QUESTION 29
List all persistent volumes sorted by capacity, saving the full kubectl output to
/opt/KUCC00102/volume_list. Use kubectl 's own functionality for sorting the output, and do not manipulate it any further.

Answer:

Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\2 C.JPG

 

NEW QUESTION 30
Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.

Answer:

Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\19 B.JPG

 

NEW QUESTION 31
Create and configure the service front-end-service so it's accessible through NodePort and routes to the existing pod named front-end.

Answer:

Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\8 B.JPG

 

NEW QUESTION 32
Create and configure the service front-end-service so it's accessible through NodePort and routes to the existing pod named front-end.

Answer:

Explanation:
See the solution below.
Explanation
solution

 

NEW QUESTION 33
Check to see how many worker nodes are ready (not including nodes tainted NoSchedule) and write the number to /opt/KUCC00104/kucc00104.txt.

Answer:

Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\15 B.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\15 C.JPG

 

NEW QUESTION 34
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:

Explanation:
See the solution below.
Explanation
solution

 

NEW QUESTION 35
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 36
Undo/Rollback deployment to specific revision "1"

  • A. // Check Deployment History
    kubectl rollout history deployment webapp
    //Rollback to particular revision
    kubectl rollout undo deploymet webapp --to-revision=1
  • B. // Check Deployment History
    kubectl rollout history deployment webapp
    kubectl rollout undo deploymet webapp --to-revision=1

Answer: A

 

NEW QUESTION 37
Scale the deployment to 5 replicas

Answer:

Explanation:
kubectl scale deployment webapp -replicas=5 //Verify kubectl get deploy kubectl get po,rs

 

NEW QUESTION 38
Check the Image version of nginx-dev pod using jsonpath

Answer:

Explanation:
See the solution below.
Explanation
kubect1 get po nginx-dev -o
jsonpath='{.spec.containers[].image}{"\n"}'

 

NEW QUESTION 39
Create a pod as follows:
* Name: mongo
* Using Image: mongo
* In a new Kubernetes namespace named

Answer:

Explanation:
See the solution below.
Explanation
solution

 

NEW QUESTION 40
Get the DNS records for the service and pods for the deployment redis and the put the value in /tmp/dnsrecordpod and /tmp/dnsrecord-service

  • A. // Get Pod Ip
    kubectl get po -o wide
    // Get Service Name
    kubectl get svc
    // Create a temporary pod and execute nslookup command
    Note: POD IP format should be a-b-c-d and not a.b.c.d
    kubectl run busybox --image=busybox:1.28 --restart=Never -
    -rm -it -- nslookup 192-168-0-69.default.pod >
    /tmp/dnsrecord-pod
    kubectl run busybox1 --image=busybox:1.26 --restart=Never
    --rm -it -- nslookup redis-service > /tmp/dnsrecordservice
    //Verify
    cat /tmp/dnsrecord-pod
    Server: 10.2.8.10
    Address 1: 10.2.0.10 kube-dns.kube system.svc.cluster.local Name: 192-168-0-69.default.pod Address 1: 192.168.0.69 192-166-0-69.redis service.default.svc.cluster.local cat /tmp/dnsrecord-pod Server: 10.2.0.10 Address 1: 10.2.0.10 kube-dns.kube system.svc.cluster.local Name: 192-168-0-69.default.pod Address 1: 192.168.0.69 192-168-0-69.redis service.default.svc.cluster.local
  • B. // Get Pod Ip
    kubectl get po -o wide
    // Get Service Name
    kubectl get svc
    // Create a temporary pod and execute nslookup command
    Note: POD IP format should be a-b-c-d and not a.b.c.d
    kubectl run busybox --image=busybox:1.28 --restart=Never -
    -rm -it -- nslookup 192-168-0-69.default.pod >
    /tmp/dnsrecord-pod
    kubectl run busybox1 --image=busybox:1.28 --restart=Never
    --rm -it -- nslookup redis-service > /tmp/dnsrecordservice
    //Verify
    cat /tmp/dnsrecord-pod
    Server: 10.2.0.10
    Address 1: 10.2.0.10 kube-dns.kube system.svc.cluster.local Name: 192-168-0-69.default.pod Address 1: 192.168.0.69 192-168-0-69.redis service.default.svc.cluster.local cat /tmp/dnsrecord-pod Server: 10.2.0.10 Address 1: 10.2.0.10 kube-dns.kube system.svc.cluster.local Name: 192-168-0-69.default.pod Address 1: 192.168.0.69 192-168-0-69.redis service.default.svc.cluster.local

Answer: B

 

NEW QUESTION 41
Create a deployment called webapp with image nginx having 5 replicas in it, put the file in /tmp directory with named webapp.yaml

  • A. //Create a file using dry run command
    kubectl create deploy --image=nginx --dry-run -o yaml >
    /tmp/webapp.yaml
    // Now, edit file webapp.yaml and update replicas=5
    apiVersion: apps/v1
    kind: Deployment
    metadata:
    labels:
    app: webapp
    name: webapp
    spec:
    replicas: 5
    selector:
    matchLabels:
    app: webapp
    template:
    metadata:
    labels:
    app: webapp
    spec:
    containers:
    - image: nginx
    name: nginx
    Note: Search "deployment" in kubernetes.io site , you will get
    the page
    https://kubernetes.io/docs/concepts/workloads/controllers/deplo
    yment/
    // Verify the Deployment
    kubectl get deploy webapp --show-labels
    // Output the YAML file of the deployment webapp
    kubectl get deploy webapp -o yaml
  • B. //Create a file using dry run command
    kubectl create deploy --image=nginx --dry-run -o yaml >
    /tmp/webapp.yaml
    // Now, edit file webapp.yaml and update replicas=5
    apiVersion: apps/v1
    kind: Deployment
    metadata:
    labels:
    app: webapp
    name: webapp
    spec:
    replicas: 5
    selector:
    matchLabels:
    app: webapp
    template:
    metadata:
    labels:
    Note: Search "deployment" in kubernetes.io site , you will get
    the page
    https://kubernetes.io/docs/concepts/workloads/controllers/deplo
    yment/
    // Verify the Deployment
    kubectl get deploy webapp --show-labels
    // Output the YAML file of the deployment webapp
    kubectl get deploy webapp -o yaml

Answer: A

 

NEW QUESTION 42
Create a pod named kucc8 with a single app container for each of the
following images running inside (there may be between 1 and 4 images specified):
nginx + redis + memcached.

Answer:

Explanation:
See the solution below.
Explanation
solution


 

NEW QUESTION 43
Create a redis pod, and have it use a non-persistent storage
Note: In exam, you will have access to kubernetes.io site,
Refer : https://kubernetes.io/docs/tasks/configure-pod-container/configurevolume-storage/

  • A. apiVersion: v1
    kind: Pod
    metadata:
    name: redis
    spec:
    containers:
    - name: redis
    image: redis
    volumeMounts:
    - name: redis-storage
    mountPath: /data/redis
    ports:
    - containerPort: 6379
    volumes:
    - name: redis-storage
    emptyDir: {}
  • B. apiVersion: v1
    kind: Pod
    metadata:
    name: redis
    spec:
    containers:
    - name: redis
    image: redis
    volumeMounts:
    - containerPort: 6379
    volumes:
    - name: redis-storage
    emptyDir: {}

Answer: A

 

NEW QUESTION 44
View certificate details in /etc/kubernetes/pki

Answer:

Explanation:
// Verify Public Key / Certificate file Openssl x509 -in certificate.crt -noout -text // Verify Private Key Openssl rsa -in "private-key" -check // Verify CSR Openssl req -text -noout -verify

 

NEW QUESTION 45
Create an nginx pod and load environment values from the above configmap "keyvalcfgmap" and exec into the pod and verify the environment variables and delete the pod

  • A. // first run this command to save the pod yaml
    kubectl run nginx --image=nginx --restart=Always --dry-run -o
    yaml > nginx-pod.yml
    // edit the yml to below file and create
    vim nginx-pod.yml
    apiVersion: v1
    name: nginx
    envFrom:
    - configMapRef:
    name: keyvalcfgmap
    restartPolicy: Always
    kubectl apply -f nginx-pod.yml
    // verify
    kubectl exec -it nginx -- env
    kubectl delete po nginx
  • B. // first run this command to save the pod yaml
    kubectl run nginx --image=nginx --restart=Always --dry-run -o
    yaml > nginx-pod.yml
    // edit the yml to below file and create
    vim nginx-pod.yml
    apiVersion: v1
    kind: Pod
    metadata:
    labels:
    run: nginx
    name: nginx
    spec:
    containers:
    - image: nginx
    name: nginx
    envFrom:
    - configMapRef:
    name: keyvalcfgmap
    restartPolicy: Always
    kubectl apply -f nginx-pod.yml
    // verify
    kubectl exec -it nginx -- env
    kubectl delete po nginx

Answer: B

 

NEW QUESTION 46
Install a kubernetes cluster with one master and one worker using kubeadm

  • A. This is a straightforward question, you need to install kubernetes cluster using kubeadm with one master and one worker.
    Refer : https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/
  • B. This is a straightforward question, you need to install kubernetes cluster using kubeadm with one master and one worker.
    Installation is considered success once both master and worker
    nodes become available.
    Refer : https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/

Answer: B

 

NEW QUESTION 47
An Administrator is configuring Authentication Enforcement and they would like to create an exemption rule to exempt a specific group from authentication. Which authentication enforcement object should they select?

  • A. default-web-form
  • B. default-no-captive-port
  • C. default-browser-challenge
  • D. default-authentication-bypass

Answer: B

 

NEW QUESTION 48
List all the pods sorted by name

Answer:

Explanation:
kubect1 get pods --sort-by=.metadata.name

 

NEW QUESTION 49
Which one is the correct configuration?

  • A. @Panorama
  • B. &Panorama
  • C. $Panorama
  • D. #Panorama

Answer: C

 

NEW QUESTION 50
Watch the job that runs 10 times one by one and verify 10 pods are created and delete those after it's completed

Answer:

Explanation:
kubectl get job -w kubectl get po kubectl delete job hello-job

 

NEW QUESTION 51
Create a busybox pod and add "sleep 3600" command

Answer:

Explanation:
kubectl run busybox --image=busybox --restart=Never -- /bin/sh -c "sleep 3600"

 

NEW QUESTION 52
Change the Image version back to 1.17.1 for the pod you just updated and observe the changes

Answer:

Explanation:
kubectl set image pod/nginx nginx=nginx:1.17.1 kubectl describe po nginx kubectl get po nginx -w # watch it

 

NEW QUESTION 53
......


How much Linux Foundation-CKA: Certified Kubernetes Administrator Cost and Details

Examination Name: Linux Foundation-CKA: Certified Kubernetes Administrator Passing Score: 66% or higher Length of Exam: 120 min Types of questions: Multiple Choice Questions No. of Questions: 24 Questions Examination Fees: $300 USD Retake Exam: Free

 

New CKA Exam Dumps with High Passing Rate: https://www.testpdf.com/CKA-exam-braindumps.html

CKA Certification Exam Dumps with 63 Practice Test Questions: https://drive.google.com/open?id=1fA8KFcC0EIsPJW2uecdv1A_uKyB6Cvan

Related Articles

more
Linux Foundation CKA Certification Practice Exam