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| Section | Weight | Objectives |
|---|---|---|
| Cluster Architecture, Installation & Configuration | 25% | - Manage the lifecycle of Kubernetes clusters - Understand extension interfaces (CNI, CSI, CRI, etc.) - Manage role based access control (RBAC) - Create and manage Kubernetes clusters using kubeadm - Implement and configure a highly-available control plane - Use Helm and Kustomize to install cluster components - Understand CRDs, install and configure operators - Prepare underlying infrastructure for installing a Kubernetes cluster |
| Services & Networking | 20% | - Define and enforce Network Policies - Understand and use CoreDNS - Know how to use Ingress controllers and Ingress resources - Use ClusterIP, NodePort, LoadBalancer service types and endpoints - Use the Gateway API to manage Ingress traffic - Understand connectivity between Pods |
| Workloads & Scheduling | 15% | - Use ConfigMaps and Secrets to configure applications - Understand Static Pods - Understand Deployments and rolling update/rollback - Understand how scheduler works - Understand DaemonSets - Understand how to run multiple schedulers and configure scheduler policies - Understand resource limits and requests - Use label selectors to schedule Pods |
| Troubleshooting | 30% | - Understand how to monitor applications - Manage container stdout & stderr logs - Troubleshoot networking - Troubleshoot cluster component failure - Troubleshoot application failure - Evaluate cluster and node logging |
| Storage | 10% | - Understand volume mode, access modes and reclaim policies - Understand Storage Classes and Persistent Volumes - Understand persistent volume claims primitive - Understand how to configure applications with persistent storage |
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NEW QUESTION # 70
On the NGFW, how can you generate and block a private key from export and thus harden your security posture and prevent rogue administrators or other bad actors from misusing keys?
Answer: D
NEW QUESTION # 71
Configure the kubelet systemd-managed service, on the nodelabelled withname=wk8s-node-1, tolaunch a pod containing a singlecontainer of Image automatically. Any spec filesrequired should be placed in the/etc/kubernetes/manifests You canssh to theappropriate node using:
[student@node-1] $ sshwk8s-node-1
You can assume elevatedprivileges on the node with thefollowing command:
[student@wk8s-node-1] $ |sudo -i
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 72
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 # 73
List pod logs named "frontend" and search for the pattern "started" and write it to a file "/opt/error-logs"
Answer:
Explanation:
See the solution below.
Explanation
Kubectl logs frontend | grep -i "started" > /opt/error-logs
NEW QUESTION # 74
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 # 75
......
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