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NEW QUESTION 1
CORRECT TEXT
Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.
Solution:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\19 B.JPG
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 2
CORRECT TEXT
Score: 13%
Task
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.
Solution:
Solution:
sudo -i
systemctl status kubelet
systemctl start kubelet
systemctl enable kubelet
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 3
CORRECT TEXT
Score: 4%
Task
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 .
Solution:
Solution:
kubectl run kucc8 --image=nginx --dry-run -o yaml > kucc8.yaml
# vi kucc8.yaml
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: null
name: kucc8
spec:
containers:
- image: nginx
name: nginx
- image: redis
name: redis
- image: memcached
name: memcached
- image: consul
name: consul
#
kubectl create -f kucc8.yaml
#12.07
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 4
CORRECT TEXT
List all the pods sorted by created timestamp
Solution:
kubect1 get pods--sort-by=.metadata.creationTimestamp
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 5
CORRECT TEXT
Score: 7%
Task
First, create a snapshot of the existing etcd instance running at https://127.0.0.1:2379, saving the snapshot to /srv/data/etcd-snapshot.db.
Next, restore an existing, previous snapshot located at /var/lib/backup/etcd-snapshot-previo us.db
Solution:
Solution:
#backup
ETCDCTL_API=3 etcdctl --endpoints="https://127.0.0.1:2379" --
cacert=/opt/KUIN000601/ca.crt --cert=/opt/KUIN000601/etcd-client.crt -- key=/opt/KUIN000601/etcd-client.key snapshot save /etc/data/etcd-snapshot.db
#restore
ETCDCTL_API=3 etcdctl --endpoints="https://127.0.0.1:2379" --
cacert=/opt/KUIN000601/ca.crt --cert=/opt/KUIN000601/etcd-client.crt -- key=/opt/KUIN000601/etcd-client.key snapshot restore /var/lib/backup/etcd-snapshot- previoys.db
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 6
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).
- A.
Answer: Seethesolutionbelow.
Explanation:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\16 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\16 C.JPG
NEW QUESTION 7
CORRECT TEXT
Score: 4%
Task
Schedule a pod as follows:
• Name: nginx-kusc00401
• Image: nginx
• Node selector: disk=ssd
Solution:
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
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 8
CORRECT TEXT
Schedule a pod as follows:
✑ Name: nginx-kusc00101
✑ Image: nginx
✑ Node selector: disk=ssd
Solution:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\6 B.JPGF:\Work\Data
F:\Work\Data Entry Work\Data Entry\20200827\CKA\6 C.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\6 D.JPG
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 9
CORRECT TEXT
List all the pods sorted by name
Solution:
kubectl get pods --sort-by=.metadata.name
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 10
CORRECT TEXT
List the nginx pod with custom columns POD_NAME and POD_STATUS
Solution:
kubectl get po -o=custom-columns="POD_NAME:.metadata.name, POD_STATUS:.status.containerStatuses[].state"
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 11
CORRECT TEXT
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.
Solution:
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
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 12
CORRECT TEXT
Task Weight: 4%
Task
Schedule a Pod as follows:
• Name: kucc1
• App Containers: 2
• Container Name/Images: o nginx
o consul
Solution:
Solution:
Graphical user interface, text, application
Description automatically generated
Text Description automatically generated
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 13
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
- A.
Answer: Seethesolutionbelow.
Explanation:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\4 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\4 C.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\4 D.JPG
NEW QUESTION 14
CORRECT TEXT
Score: 4%
Task
Check to see how many nodes are ready (not including nodes tainted NoSchedule ) and write the number to /opt/KUSC00402/kusc00402.txt.
Solution:
Solution:
kubectl describe nodes | grep ready|wc -l
kubectl describe nodes | grep -i taint | grep -i noschedule |wc -l
echo 3 > /opt/KUSC00402/kusc00402.txt
#
kubectl get node | grep -i ready |wc -l
# taintsnoSchedule
kubectl describe nodes | grep -i taints | grep -i noschedule |wc -l
#
echo 2 > /opt/KUSC00402/kusc00402.txt
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 15
CORRECT TEXT
Task Weight: 4%
Task
Scale the deployment webserver to 3 pods.
Solution:
Solution:
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 16
CORRECT TEXT
Create a pod with environment variables as var1=value1.Check the environment variable in pod
Solution:
kubectl run nginx --image=nginx --restart=Never --env=var1=value1
# then
kubectl exec -it nginx -- env
# or
kubectl exec -it nginx -- sh -c 'echo $var1'
# or
kubectl describe po nginx | grep value1
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 17
CORRECT TEXT
Score: 4%
Context
You have been asked to create a new ClusterRole for a deployment pipeline and bind it to a specific ServiceAccount scoped to a specific namespace.
Task
Create a new ClusterRole named deployment-clusterrole, which only allows to create the following resource types:
• Deployment
• StatefulSet
• DaemonSet
Create a new ServiceAccount named cicd-token in the existing namespace app-team1. Bind the new ClusterRole deployment-clusterrole lo the new ServiceAccount cicd-token ,
limited to the namespace app-team1.
Solution:
Solution:
Task should be complete on node k8s -1 master, 2 worker for this connect use command [student@node-1] > ssh k8s
kubectl create clusterrole deployment-clusterrole --verb=create -- resource=deployments,statefulsets,daemonsets
kubectl create serviceaccount cicd-token --namespace=app-team1
kubectl create rolebinding deployment-clusterrole --clusterrole=deployment-clusterrole -- serviceaccount=default:cicd-token --namespace=app-team1
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 18
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
Solution:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 C.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 D.JPG
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 19
......
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