[Dec-2021] Latest CKA Exam Dumps for Pass Guaranteed [Q35-Q51]

[Dec-2021] Latest CKA Exam Dumps for Pass Guaranteed

Reliable Kubernetes Administrator CKA Dumps PDF Dec 18, 2021 Recently Updated Questions

For more info read reference:

Linux Foundation-CKA Official Certification Site

Certification Path

There are no pre-requisites for Linux Foundation-CKA: Certified Kubernetes Administrator exam and the successful completion will give you the title of Certified Kubernetes Administrator

Who should take the Linux Foundation-CKA: Certified Kubernetes Administrator Exam

This certification will allow the candidate to be setup as a succesfull Kubernetes Administrator and will be able to know and work on the following things:

Kubernetes networking
Kubernetes cluster maintenance
Kubernetes security
Kubernetes logging and monitoring
Troubleshooting Kubernetes
Kubernetes scheduling
Kubernetes installation, configuration, and validation
Kubernetes core operations concepts
Kubernetes storage

NEW QUESTION 35
Create a Kubernetes secret asfollows:
* Name: super-secret
* password: bob
Create a pod namedpod-secrets-via-file Image, which mounts a secret namedsuper-secretat
/secrets.
Create a second pod namedpod-secrets-via-env Image, which exportspasswordas CONFIDENTIAL

Answer:

Explanation:
See the solution below.
Explanation
solution

NEW QUESTION 36
Scale the deployment webserver to

Answer:

Explanation:
See the solution below.
Explanation
solution

NEW QUESTION 37
Score: 4%

Task
Schedule a pod as follows:
* Name: nginx-kusc00401
* Image: nginx
* Node selector: disk=ssd

Answer:

Explanation:
See the solution below.
Explanation
Solution:
#yaml
apiVersion: v1
kind: Pod
metadata:
name: nginx-kusc00401
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
nodeSelector:
disk: spinning
#
kubectl create -f node-select.yaml

NEW QUESTION 38
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 39
Score: 7%

Task
Reconfigure the existing deployment front-end and add a port specification named http exposing port 80/tcp of the existing container nginx.
Create a new service named front-end-svc exposing the container port http.
Configure the new service to also expose the individual Pods via a NodePort on the nodes on which they are scheduled.

Answer:

Explanation:
See the solution below.
Explanation
Solution:
kubectl get deploy front-end
kubectl edit deploy front-end -o yaml
#port specification named http
#service.yaml
apiVersion: v1
kind: Service
metadata:
name: front-end-svc
labels:
app: nginx
spec:
ports:
- port: 80
protocol: tcp
name: http
selector:
app: nginx
type: NodePort
# kubectl create -f service.yaml
# kubectl get svc
# port specification named http
kubectl expose deployment front-end --name=front-end-svc --port=80 --tarport=80 --type=NodePort

NEW QUESTION 40
List all persistent volumes sorted bycapacity, saving the fullkubectloutput to
/opt/KUCC00102/volume_list. Usekubectl 's own functionality forsorting the output, and do not manipulate it any further.

Answer:

Explanation:
See the solution below.
Explanation
solution

NEW QUESTION 41
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 42
Make the node schedulable by uncordon the node

Answer:

Explanation:
kubectl uncordon node-1 //verify kubectl get no

NEW QUESTION 43
Get the memory and CPU usage of all the pods and find out top 3 pods which have the highest usage and put them into the cpuusage.txt file

A. // Get the top 3 pods
kubectl top pod --all-namespaces | sort --reverse --key 3 --
numeric | head -8
// putting into file
kubectl top pod --all-namespaces | sort --reverse --key 6 --
numeric | head -6 > cpu-usage.txt
// verify
cat cpu-usage.txt
B. // Get the top 3 pods
kubectl top pod --all-namespaces | sort --reverse --key 3 --
numeric | head -3
// putting into file
kubectl top pod --all-namespaces | sort --reverse --key 3 --
numeric | head -3 > cpu-usage.txt
// verify
cat cpu-usage.txt

Answer: B

NEW QUESTION 44
Create a Pod with three busy box containers with commands "ls; sleep 3600;", "echo Hello World; sleep 3600;" and "echo this is the third container; sleep 3600" respectively and check the status

A. // first create single container pod with dry run flag
kubectl run busybox --image=busybox --restart=Always --dry-run
-o yaml -- bin/sh -c "sleep 3600; ls" > multi-container.yaml
// edit the pod to following yaml and create it
apiVersion: v1
kind: Pod
metadata:
labels:
run: busybox
name: busybox
spec:
containers:
- args:
- bin/sh
- -c
- ls; sleep 3600
image: busybox
name: busybox-container-1
- args:
- bin/sh
- -c
- echo Hello world; sleep 3600
image: busybox
name: busybox-container-2
- args:
- bin/sh
- -c
- echo this is third container; sleep 3600
image: busybox
name: busybox-container-3
restartPolicy: Always
// Verify
Kubectl get pods
B. // first create single container pod with dry run flag
kubectl run busybox --image=busybox --restart=Always --dry-run
-o yaml -- bin/sh -c "sleep 3600; ls" > multi-container.yaml
// edit the pod to following yaml and create it
apiVersion: v1
kind: Pod
metadata:
labels:
run: busybox
name: busybox
spec:
containers:
- args:
- bin/sh
- -c
- ls; sleep 3600
- echo Hello world; sleep 3600
image: busybox
name: busybox-container-2
- args:
- bin/sh
- -c
- echo this is third container; sleep 3600
image: busybox
name: busybox-container-3
restartPolicy: Always
// Verify
Kubectl get pods

Answer: A

NEW QUESTION 45
Create a Cronjob with busybox image that prints date and hello from kubernetes cluster message for every minute

A. CronJob Syntax:
* --> Minute
* --> Hours
* --> Day of The Month
* --> Month
* --> Day of the Week
*/1 * * * * --> Execute a command every one minutes.
vim date-job.yaml
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: date-job
spec:
schedule: "*/1 * * * *"
jobTemplate:
spec:
template:
spec:
containers:
- name: hello
image: busybox
args:
- /bin/sh
- -c
- date; echo Hello from the Kubernetes cluster
restartPolicy: OnFailure
kubectl apply -f date-job.yaml
//Verify
kubectl get cj date-job -o yaml
B. CronJob Syntax:
* --> Minute
* --> Hours
* --> Day of The Month
* --> Month
* --> Day of the Week
*/1 * * * * --> Execute a command every one minutes.
vim date-job.yaml
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: date-job
spec:
schedule: "*/1 * * * *"
jobTemplate:
spec:
template:
- /bin/sh
- -c
- date; echo Hello from the Kubernetes cluster
restartPolicy: OnFailure
kubectl apply -f date-job.yaml
//Verify
kubectl get cj date-job -o yaml

Answer: A

NEW QUESTION 46
Create a snapshot of the etcd instance running at https://127.0.0.1:2379, saving the snapshot to the file path
/srv/data/etcd-snapshot.db.
The following TLS certificates/key are supplied for connecting to the server with etcdctl:
* CA certificate: /opt/KUCM00302/ca.crt
* Client certificate: /opt/KUCM00302/etcd-client.crt
* Client key: Topt/KUCM00302/etcd-client.key

Answer:

Explanation:
See the solution below.
Explanation
solution

NEW QUESTION 47
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:
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:
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

Answer: B

NEW QUESTION 48
Create a namespace called 'development' and a pod with image nginx called nginx on this namespace.

Answer:

Explanation:
See the solution below.
Explanation
kubectl create namespace development
kubectl run nginx --image=nginx --restart=Never -n development

NEW QUESTION 49
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
F:\Work\Data Entry Work\Data Entry\20200827\CKA\5 B.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\5 C.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\5 D.JPG

NEW QUESTION 50
Create a deployment as follows:
* Name: nginx-app
* Using container nginx with version 1.11.10-alpine
* The deployment should contain 3 replicas
Next, deploy the application with new version 1.11.13-alpine, by performing a rolling update.
Finally, rollback that update to the previous version 1.11.10-alpine.

Answer:

Explanation:
See the solution below.
Explanation
solution