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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cluster Architecture, Installation & Configuration | 25% | - Use Helm and Kustomize to install cluster components - Manage the lifecycle of Kubernetes clusters - Understand CRDs, install and configure operators - Manage role based access control (RBAC) - Create and manage Kubernetes clusters using kubeadm - Understand extension interfaces (CNI, CSI, CRI, etc.) - Implement and configure a highly-available control plane - Prepare underlying infrastructure for installing a Kubernetes cluster |
| Topic 2: Services & Networking | 20% | - Know how to use Ingress controllers and Ingress resources - Understand and use CoreDNS - Use ClusterIP, NodePort, LoadBalancer service types and endpoints - Use the Gateway API to manage Ingress traffic - Understand connectivity between Pods - Define and enforce Network Policies |
| Topic 3: Workloads & Scheduling | 15% | - Understand resource limits and requests - Understand how scheduler works - Understand Static Pods - Understand how to run multiple schedulers and configure scheduler policies - Understand DaemonSets - Understand Deployments and rolling update/rollback - Use ConfigMaps and Secrets to configure applications - Use label selectors to schedule Pods |
| Topic 4: Troubleshooting | 30% | - Understand how to monitor applications - Troubleshoot application failure - Troubleshoot networking - Troubleshoot cluster component failure - Evaluate cluster and node logging - Manage container stdout & stderr logs |
| Topic 5: Storage | 10% | - Understand volume mode, access modes and reclaim policies - Understand persistent volume claims primitive - Understand how to configure applications with persistent storage - Understand Storage Classes and Persistent Volumes |
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NEW QUESTION # 84
Create a busybox pod that runs the command "env" and save the output to "envpod" file
Answer:
Explanation:
See the solution below.
Explanation
kubectl run busybox --image=busybox --restart=Never --rm -it -- env > envpod.yaml
NEW QUESTION # 85
Configure the kubelet systemd- managed service, on the node labelled with name=wk8s-node-1, to launch a pod containing a single container of Image httpd named webtool automatically. Any spec files required should be placed in the /etc/kubernetes/manifests directory on the node.
You can ssh to the appropriate node using:
[student@node-1] $ ssh wk8s-node-1
You can assume elevated privileges on the node with the following command:
[student@wk8s-node-1] $ | sudo -i
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 86
You are managing a Kubernetes cluster with several namespaces. You need to restrict access to the 'production' namespace, ensuring only authorized users can access resources within that namespace. Create a Role and RoleBinding that allows users in the 'developers' group to access pods and deployments within the 'production' namespace.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
Step 1: Create a Role
Create a Role named 'production-access' with the following permissions:
Step 2: Create a RoleBinding Create a RoleBinding named production-developers' that binds the 'production-access' role to the 'developers' group:
Step 3: Verify Verify the role and rolebinding have been created correctly: kubectl get role - -namespace=production kubectl get rolebinding - -namespace=production
NEW QUESTION # 87
Get the number of schedulable nodes and write to a file
/opt/schedulable-nodes.txt
Answer: A
NEW QUESTION # 88
Verify certificate expiry date for ca certificate in /etc/kubernetes/pki
Answer:
Explanation:
openssl x509 -in ca.crt -noout -text | grep -i validity -A 4
NEW QUESTION # 89
......
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