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Linux Foundation CKA Exam Syllabus Topics:

SectionWeightObjectives
Storage10%- Storage classes
- PersistentVolumes and PersistentVolumeClaims
Services & Networking20%- Services (ClusterIP, NodePort, LoadBalancer)
- Ingress configuration
- Network policies
Workloads & Scheduling15%- Deployments and rolling updates
- Scheduling constraints
- ConfigMaps and Secrets
Cluster Architecture, Installation & Configuration25%- High availability setup
- Cluster installation and configuration
- Kubernetes architecture components
Troubleshooting30%- Application and networking debugging
- Cluster component troubleshooting

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Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q38-Q43):

NEW QUESTION # 38
Scale down the deployment to 1 replica

Answer:

Explanation:
kubectl scale deployment webapp -replicas=1 //Verify kubectl get deploy kubectl get po,rs


NEW QUESTION # 39
Ensure a single instance of podnginxis running on each node of theKubernetes cluster wherenginxalso represents the Image name whichhas to be used. Do not override anytaints currently in place.
UseDaemonSetto complete thistask and useds-kusc00201asDaemonSet name.

Answer:

Explanation:
See the solution below.
Explanation
solution




NEW QUESTION # 40
// Create a configmap
kubectl create configmap redis-config --from-file=/opt/redisconfig
// Verify
kubectl get configmap redis-config -o yaml
// first run this command to save the pod yml
kubectl run redis-pod --image=redis --restart=Always --dry-run
-o yaml > redis-pod.yml
// edit the yml to below file and create
apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
containers:
- name: redis
image: redis
env:
- name: MASTER
value: "true"
ports:
- containerPort: 6379
volumeMounts:
- mountPath: /redis-master-data
name: data
- mountPath: /redis-master
name: config
volumes:
- name: data
emptyDir: {}
- name: config
configMap:
name: example-redis-config

Answer: B


NEW QUESTION # 41
You are managing a Kubernetes cluster with a complex deployment scenario. The cluster has multiple namespaces, each with its own set of applications and users. You need to create a robust RBAC system to enforce fine-grained access control.
Current Setup:
Namespace: 'dev', 'staging', 'production'
Users: 'developer', 'qa', 'admin'
Applications: 'appl', 'app2' in 'dev', 'app3' in 'staging', 'app4' in 'production' Requirements:
'developer' should be able to access and manage 'appl' and 'app2' in the 'dev' namespace.
'qa' should be able to access and manage 'app3' in the 'staging' namespace.
'admin' should have full cluster-wide access.
Task:
Create the necessary Role, RoleBinding, and ClusterRole objects to implement this RBAC system.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create Roles for 'developer' and 'qa':


2. Create RoleBinding for 'developer' and 'qa':

3. Create ClusterRole for 'admin'.

4. Create ClusterRoleBindin for 'admin'.

We created separate roles (developer-role', 'cp-role') for each user group, limiting their access to specific namespaces and resources. We bound these roles to users using RoleBindings in the respective namespaces. For 'admin', we created a ClusterRole Cadmin-clusterrole') with full access to all resources, and bound it using a ClusterRoleBinding. This setup ensures that each user has appropriate access rights based on their role and responsibilities. ,


NEW QUESTION # 42
Score: 7%

Task
Create a new NetworkPolicy named allow-port-from-namespace in the existing namespace echo. Ensure that the new NetworkPolicy allows Pods in namespace my-app to connect to port 9000 of Pods in namespace echo.
Further ensure that the new NetworkPolicy:
* does not allow access to Pods, which don't listen on port 9000
* does not allow access from Pods, which are not in namespace my-app

Answer:

Explanation:
See the solution below.
Explanation
Solution:
#network.yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: allow-port-from-namespace
namespace: internal
spec:
podSelector:
matchLabels: {
}
policyTypes:
- Ingress
ingress:
- from:
- podSelector: {
}
ports:
- protocol: TCP
port: 8080
#spec.podSelector namespace pod
kubectl create -f network.yaml


NEW QUESTION # 43
......

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