從Google Drive中免費下載最新的Testpdf CKA PDF版考試題庫：https://drive.google.com/open?id=1FXRY3xUrHryLXgnnRzh6SkK8v_KmMUL3
Linux Foundation CKA 認證考試已經成為了IT行業中很熱門的一個考試，但是為了通過考試需要花很多時間和精力掌握好相關專業知識。在這個時間很寶貴的時代，時間就是金錢。Testpdf為Linux Foundation CKA 認證考試提供的培訓方案只需要20個小時左右的時間就能幫你鞏固好相關專業知識，讓你為第一次參加的Linux Foundation CKA 認證考試做好充分的準備。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Workloads & Scheduling | 15% | - Deployments and rolling updates - ConfigMaps and Secrets - Scheduling constraints |
| Topic 2: Cluster Architecture, Installation & Configuration | 25% | - High availability setup - Cluster installation and configuration - Kubernetes architecture components |
| Topic 3: Services & Networking | 20% | - Ingress configuration - Network policies - Services (ClusterIP, NodePort, LoadBalancer) |
| Topic 4: Troubleshooting | 30% | - Cluster component troubleshooting - Application and networking debugging |
| Topic 5: Storage | 10% | - Storage classes - PersistentVolumes and PersistentVolumeClaims |
Testpdf的CKA資料不僅能讓你通過考試，還可以讓你學到關於CKA考試的很多知識。Testpdf的考古題把你應該要掌握的技能全都包含在試題中，這樣你就可以很好地提高自己的能力，並且在工作中更好地應用它們。Testpdf的CKA考古題絕對是你準備考試並提高自己技能的最好的選擇。你要相信Testpdf可以給你一個美好的未來。
問題 #76
Score:7%
Task
Create a new PersistentVolumeClaim
* Name: pv-volume
* Class: csi-hostpath-sc
* Capacity: 10Mi
Create a new Pod which mounts the PersistentVolumeClaim as a volume:
* Name: web-server
* Image: nginx
* Mount path: /usr/share/nginx/html
Configure the new Pod to have ReadWriteOnce access on the volume.
Finally, using kubectl edit or kubectl patch expand the PersistentVolumeClaim to a capacity of 70Mi and record that change.
答案：
解題說明：
Solution:
vi pvc.yaml
storageclass pvc
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pv-volume
spec:
accessModes:
- ReadWriteOnce
volumeMode: Filesystem
resources:
requests:
storage: 10Mi
storageClassName: csi-hostpath-sc
# vi pod-pvc.yaml
apiVersion: v1
kind: Pod
metadata:
name: web-server
spec:
containers:
- name: web-server
image: nginx
volumeMounts:
- mountPath: "/usr/share/nginx/html"
name: my-volume
volumes:
- name: my-volume
persistentVolumeClaim:
claimName: pv-volume
# craete
kubectl create -f pod-pvc.yaml
#edit
kubectl edit pvc pv-volume --record
問題 #77
A bootstrap USB flash drive has been prepared using a Windows workstation to load the initial configuration of a Palo Alto Networks firewall that was previously being used in a lab. The USB flash drive was formatted using file system FAT32 and the initial configuration is stored in a file named init-cfg.txt. The firewall is currently running PAN-OS 10.0 and using a lab config. The contents of init-cgf.txt in the USB flash drive are as follows:
type=dhcp-client
Ip-address=
default-gateway=
netmask=
Ipv6-address=
Ipv6-default-gateway=
hostname=Ca-FW-DC1
panorama-server=10.5.107.20
panorama-server-2=10.5.107.21
tplname=FINANCE_TG4
dgname=finance_dg
dns-primary=10.5.6.6
dns-secondary=10.5.6.7
op-command-modes-multi-vsys.jumbo-frame
dhcp-send-hostname=yes
dhcp-send-client-id=yes
dhcp-accept-server-hostname=yes
dhcp-accept-server-domain=yes
The USB flash drive has been inserted in the firewalls' USB port, and the firewall has been restarted using command> request restart system Upon restart, the firewall fails to begin the bootstrapping process. The failure is caused because:
答案：C
問題 #78
You must connect to the correct host.
Failure to do so may result in a zero score.
[candidate@base] $ ssh Cka000054
Context:
Your cluster 's CNI has failed a security audit. It has been removed. You must install a new CNI that can enforce network policies.
Task
Install and set up a Container Network Interface (CNI ) that meets these requirements:
Pick and install one of these CNI options:
Flannel version 0.26.1
Manifest:
https://github.com/flannel-io/flannel/releases/download/v0.26.1/kube-flannel.yml
Calico version 3.28.2
Manifest:
https://raw.githubusercontent.com/project calico/calico/v3.28.2/manifests/tigera-operator.yaml
答案：
解題說明：
Task Summary
* SSH into cka000054
* Install a CNI plugin that supports NetworkPolicies
* Two CNI options provided:
* Flannel v0.26.1 (# does NOT support NetworkPolicies)
* Calico v3.28.2 # (does support NetworkPolicies)
# Decision Point: Which CNI to choose?
# Choose Calico, because only Calico supports enforcing NetworkPolicies natively. Flannel does not.
# Step-by-Step Solution
1## SSH into the correct node
ssh cka000054
## Required. Skipping this results in zero score.
2## Install Calico CNI (v3.28.2)
Use the official manifest provided:
kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.28.2/manifests/tigera-operator.yaml This installs the Calico Operator, which then deploys the full Calico CNI stack.
3## Wait for Calico components to come up
Check the pods in tigera-operator and calico-system namespaces:
kubectl get pods -n tigera-operator
kubectl get pods -n calico-system
# You should see pods like:
* calico-kube-controllers
* calico-node
* calico-typha
* tigera-operator
Wait for all to be in Running state.
# (Optional) 4## Confirm CNI is enforcing NetworkPolicies
You can check:
kubectl get crds | grep networkpolicy
You should see:
* networkpolicies.crd.projectcalico.org
* This confirms Calico's CRDs are installed for policy enforcement.
Final Command Summary
ssh cka000054
kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.28.2/manifests/tigera-operator.yaml kubectl get pods -n tigera-operator kubectl get pods -n calico-system kubectl get crds | grep networkpolicy
問題 #79
You have a Deployment for a web application named 'web-app-deployment' that uses an image named 'web-app:vl .0'. You want to implement a rolling update to upgrade the deployment to a new version, 'web-app:v2.0', but only allow a maximum of 2 pods to be unavailable at any time during the update. How would you achieve this using Kubernetes?
答案：
解題說明：
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Update the Deployment YAML:
- Open the Deployment YAML file for 'web-app-deployment' (e.g., 'web-app-deployment.yaml').
- Modify the 'image' field within the 'spec.template.spec.containers' section to the new image: 'web-app:v2.0'.
- Adjust the 'strategy.rollingUpdate' section to control the rolling update process:
- Set 'maxUnavailable: 2' to allow a maximum of 2 pods to be unavailable at any time.
- Keep 'maxSurge: 0' if you don't want additional pods to be created during the update.
2. Apply the Updated Deployment: - IJse 'kubectl apply -f web-app-deployment.yaml' to apply the updated Deployment YAML. 3. Monitor the Rolling Update: - Use 'kubectl get pods -l app=web-app' to monitor the update process. You will see that Kubernetes will gradually terminate old pods running 'web-app:vl .0' and create new pods with 'web-app:v2.0'. - You can also use "kubectl describe deployment web-app-deployment' to observe the progress of the rolling update. 4. Verify Successful Update: - Once the update is complete, confirm that all pods are running the new image 'web-app:v2.0'. You can check the output of 'kubectl get pods -l app=web-app' or 'kubectl describe deployment web-app-deployment'.
問題 #80
Score: 7%
Task
Given an existing Kubernetes cluster running version 1.20.0, upgrade all of the Kubernetes control plane and node components on the master node only to version 1.20.1.
Be sure to drain the master node before upgrading it and uncordon it after the upgrade.
You are also expected to upgrade kubelet and kubectl on the master node.
答案：
解題說明：
SOLUTION:
[student@node-1] > ssh ek8s
kubectl cordon k8s-master
kubectl drain k8s-master --delete-local-data --ignore-daemonsets --force apt-get install kubeadm=1.20.1-00 kubelet=1.20.1-00 kubectl=1.20.1-00 --disableexcludes=kubernetes kubeadm upgrade apply 1.20.1 --etcd-upgrade=false systemctl daemon-reload systemctl restart kubelet kubectl uncordon k8s-master
問題 #81
......
Testpdf的專業及高品質的產品是提供IT認證資料的行業佼佼者，選擇了Testpdf就是選擇了成功，Testpdf Linux Foundation的CKA考試培訓資料是保證你通向成功的法寶，有了它你將取得優異的成績，並獲得認證，走向你的理想之地。
CKA證照指南: https://www.testpdf.net/CKA.html
順便提一下，可以從雲存儲中下載Testpdf CKA考試題庫的完整版：https://drive.google.com/open?id=1FXRY3xUrHryLXgnnRzh6SkK8v_KmMUL3