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| Certification Vendor: | Linux Foundation / Cloud Native Computing Foundation (CNCF) |
|---|---|
| Exam Name: | Certified Kubernetes Administrator (CKA) Program Exam |
| Exam Number: | CKA |
| Certificate Validity Period: | 2 years |
| Passing Score: | 66% |
| Available Languages: | English, Japanese, Simplified Chinese |
| Related Certifications: | Certified Kubernetes Security Specialist (CKS) Certified Kubernetes Application Developer (CKAD) |
| Exam Price: | $445 USD |
| Exam Format: | Online proctored, Command-line tasks, Performance-based, Hands-on in real Kubernetes environment |
| Exam Duration: | 120 minutes |
| Real Exam Qty: | 15-20 performance-based tasks |
| Recommended Training: | Introduction to Kubernetes (Free Course) LFS258: Kubernetes Fundamentals |
| Exam Registration: | Linux Foundation Training Portal |
| Sample Questions: | Linux Foundation CKA Sample Questions |
| Exam Way: | Online, remotely proctored via PSI; browser-based terminal environment |
| Pre Condition: | No formal prerequisites; basic Linux and Kubernetes knowledge recommended |
| Official Syllabus URL: | https://training.linuxfoundation.org/certification/certified-kubernetes-administrator-cka/ |
All the iPassleader Linux Foundation CKA practice questions are real and based on actual Certified Kubernetes Administrator (CKA) Program Exam (CKA) exam topics. The web-based Certified Kubernetes Administrator (CKA) Program Exam (CKA) practice test is compatible with all operating systems like Mac, IOS, Android, and Windows. Because of its browser-based Linux Foundation CKA Practice Exam, it requires no installation to proceed further. Similarly, Chrome, IE, Firefox, Opera, Safari, and all the major browsers support the Certified Kubernetes Administrator (CKA) Program Exam (CKA) practice test.
The CKA certification exam is designed to test the knowledge and skills of candidates in various aspects of Kubernetes administration, such as cluster installation and configuration, application deployment and management, networking, security, and troubleshooting. CKA Exam is conducted online and consists of a set of performance-based tasks that require candidates to demonstrate their ability to perform various Kubernetes administration tasks in a time-bound manner.
NEW QUESTION # 51
Create a namespace called 'development' and a pod with image nginx called nginx on this namespace.
Answer:
Explanation:
kubectl create namespace development
kubectl run nginx --image=nginx --restart=Never -n development
NEW QUESTION # 52
Label a node as app=test and verify
Answer:
Explanation:
kubectl label node node-name app=test // Verify kubectl get no -show-labels kubectl get no -l app=test
NEW QUESTION # 53
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
Answer: A
NEW QUESTION # 54
Create a persistent volume with nameapp-data, of capacity2Giandaccess modeReadWriteMany. Thetype of volume ishostPathand itslocation is/srv/app-data.
Answer:
Explanation:
See the solution below.
Explanation
solution
Persistent Volume
A persistent volume is a piece of storage in aKubernetes cluster. PersistentVolumes are a cluster-level resource like nodes, which don't belong to any namespace. It is provisioned by the administrator and has a particular file size. This way, a developer deploying their app on Kubernetes need not knowthe underlying infrastructure.
When the developer needs a certain amount of persistent storage for their application, the system administrator configures the cluster so that they consume the PersistentVolume provisioned in an easy way.
Creating PersistentVolume
kind: PersistentVolumeapiVersion: v1metadata:name:app-dataspec:capacity: # defines the capacity of PV we are creatingstorage:2Gi#the amount of storage we are tying to claimaccessModes: # defines the rights of the volumewe are creating-ReadWriteManyhostPath:path: "/srv/app-data" # path to which we are creating the volume Challenge
* Create a Persistent Volume named ReadWriteMany, storage classname
shared,2Giof storage capacity and the host path
2. Save the file and create the persistent volume.
Image for post
3. View the persistent volume.
* Our persistent volume status is available meaning it is available and it has not been mounted yet. This status willchange when we mount the persistentVolume to a persistentVolumeClaim.
PersistentVolumeClaim
In a real ecosystem, a system admin will create the PersistentVolume then a developer will create a PersistentVolumeClaim which will be referenced in a pod. A PersistentVolumeClaim is created by specifying the minimum size and the access mode they require from the persistentVolume.
Challenge
* Create a Persistent Volume Claim that requests the Persistent Volume we had created above. The claim should request 2Gi. Ensurethat the Persistent Volume Claim has the same storageClassName as the persistentVolume you had previously created.
kind: PersistentVolumeapiVersion: v1metadata:name:
spec:
accessModes:-ReadWriteManyresources:
requests:storage:2Gi
storageClassName:shared
2. Save and create the pvc
njerry191@cloudshell:~(extreme-clone-2654111)$ kubect1 create -f app-data.yaml persistentvolumeclaim/app-data created
3. View the pvc
Image for post
4. Let's see what has changed in the pv we had initially created.
Image for post
Our status has now changed fromavailabletobound.
5. Create a new pod named myapp with image nginx that will be used to Mount the Persistent Volume Claim with the path /var/app/config.
Mounting a Claim
apiVersion: v1kind: Podmetadata:creationTimestamp: nullname: app-dataspec:volumes:- name:congigpvcpersistenVolumeClaim:claimName: app-datacontainers:- image: nginxname:
appvolumeMounts:- mountPath: "
NEW QUESTION # 55
You are deploying a microservices application on Kubernetes where each service has its own dedicated namespace. You want to implement a robust network security policy that allows communication between specific services only. How can you achieve this using NetworkPolicies?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Define Network Policies for Each Service:
- For each service, create a NetworkPolicy that defines the allowed ingress and egress traffic.
- Example for service "service-A":
2. Apply Network Policies: - Apply the NetworkPolicies to the respective namespaces using 'kubectl apply -f networkpolicy.yaml'
NEW QUESTION # 56
......
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