CKA試題和資格考試中的領先材料供應商＆CKA學習指南

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你想过怎么样才能更轻松地通过Linux Foundation的CKA认证考试吗？你发现诀窍了吗？如果你不知道怎么办的话，我来告诉你。其實通過考試的方法有很多種。努力學習考試要求的所有的相關知識就是其中的一種方法。你現在正在這樣做嗎？但是這是最浪費時間並且很可能得不到預期的效果的方法。而且，每天都忙於工作的你恐怕沒有那麼多時間來準備考試吧？那麼試一下Testpdf的CKA考古題吧。這個資料絕對可以讓你得到你想不到的成果。

Linux Foundation CKA Exam Overview:

Certification Vendor:	Linux Foundation / Cloud Native Computing Foundation (CNCF)
Exam Name:	Certified Kubernetes Administrator (CKA) Program Exam
Exam Number:	CKA
Exam Format:	Command-line tasks, Hands-on in real Kubernetes environment, Performance-based, Online proctored
Exam Duration:	120 minutes
Related Certifications:	Certified Kubernetes Security Specialist (CKS) Certified Kubernetes Application Developer (CKAD)
Exam Price:	$445 USD
Certificate Validity Period:	2 years
Available Languages:	English, Japanese, Simplified Chinese
Real Exam Qty:	15-20 performance-based tasks
Passing Score:	66%
Recommended Training:	LFS258: Kubernetes Fundamentals Introduction to Kubernetes (Free Course)
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/

>> CKA試題 <<

CKA學習指南 - CKA考題資訊

常常一次偶然的IT考試，會成為你奮鬥的力量，會改變你一生的命運。作為 Linux Foundation 一重要認證科目，CKA 考試是 Linux Foundation 公司的認證考試官方代號。我們的CKA 題庫參考資料是根據最新的考試動態變化而更新，Testpdf 會在第一時間更新。如果你還為了要不要使用這個網站的培訓資料而感到困惑或者猶豫不決，那麼你可以先在我們網站裏下載部分 CKA 試題及答案，免費試用，如果它很適合你，你可以再去購買也不遲，保證你絕不後悔。

CKA 計劃認證考試旨在測試具有 Kubernetes 工作經驗的專業人士的技能。該考試是一種在線監控考試，可以在世界任何地方參加。該考試由 24 個性能基礎的任務組成，要求考生展示他們執行常見 Kubernetes 操作的能力。該考試設計具有挑戰性，需要具有高水平的技能和知識。

考試是基於表現的，測試候選人執行Kubernetes管理員通常執行的任務的能力。考試由一組必須在一定時間內完成的任務組成。候選人需要展示他們執行部署應用程序、擴容集群和疑難排解等任務的能力。考試旨在具有挑戰性，但有Kubernetes經驗並充分準備的候選人應該能夠通過考試。

最新的 Kubernetes Administrator CKA 免費考試真題 (Q71-Q76):

問題 #71
Create a file:
/opt/KUCC00302/kucc00302.txt that lists all pods that implement service in namespace development.
The format of the file should be one pod name per line.

答案：

解題說明：
See the solution below.
Explanation
solution

問題 #72
Get list of all the pods showing name and namespace with a jsonpath expression.

答案：

解題說明：
kubectl get pods -o=jsonpath="{.items[*]['metadata.name'
, 'metadata.namespace']}"

問題 #73
Create a daemonset named "Prometheus-monitoring" using image=prom/Prometheus which runs in all the nodes in the cluster. Verify the pod running in all the nodes

A. vim promo-ds.yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: prometheus-monitoring
spec:
selector:
matchLabels:
name: prometheus
template:
metadata:
labels:
name: prometheus
spec:
tolerations:
# remove it if your masters can't run pods
- key: node-role.kubernetes.io/master
effect: NoSchedule
containers:
- name: prometheus-container
image: prom/prometheus
volumeMounts:
- name: varlog
mountPath: /var/log
- name: varlibdockercontainers
mountPath: /var/lib/docker/containers
readOnly: true
volumes:
- name: varlog
emptyDir: {}
- name: varlibdockercontainers
emptyDir: {}
kubectl apply -f promo-ds.yaml
NOTE: Deamonset will get scheduled to "default" namespace, to
schedule deamonset in specific namespace, then add
"namespace" field in metadata
//Verify
kubectl get ds
NAME DESIRED CURRENT READY UP-TO-DATE
AVAILABLE NODE SELECTOR AGE
prometheus-monitoring 6 6 0 6
0 <none> 7s
kubectl get no # To get list of nodes in the cluster
// There are 6 nodes in the cluster, so a pod gets scheduled to
each node in the cluster
B. vim promo-ds.yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: prometheus-monitoring
spec:
selector:
matchLabels:
name: prometheus
template:
metadata:
labels:
name: prometheus
spec:
tolerations:
# remove it if your masters can't run pods
- key: node-role.kubernetes.io/master
effect: NoSchedule
containers:
- name: prometheus-container
- name: varlibdockercontainers
mountPath: /var/lib/docker/containers
readOnly: true
volumes:
- name: varlog
emptyDir: {}
- name: varlibdockercontainers
emptyDir: {}
kubectl apply -f promo-ds.yaml
NOTE: Deamonset will get scheduled to "default" namespace, to
schedule deamonset in specific namespace, then add
"namespace" field in metadata
//Verify
kubectl get ds
NAME DESIRED CURRENT READY UP-TO-DATE
AVAILABLE NODE SELECTOR AGE
prometheus-monitoring 8 8 0 6
0 <none> 7s
kubectl get no # To get list of nodes in the cluster
// There are 6 nodes in the cluster, so a pod gets scheduled to
each node in the cluster

答案：A

問題 #74
You have a deployment named 'redis-deployment' running a Redis server with 3 replicas. You need to configure a service with the 'NodePort' type to expose Redis on all nodes in the cluster, but restrict access only from specific pods within a namespace.

答案：

解題說明：
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a NetworkPolicy:
- Define a NetworkPolicy resource that allows traffic from specific pods in a namespace to the Redis service.

2. Create the NodePort service: - Create a NodePort service for the Redis deployment, allowing access to the Redis server through all nodes in the cluster.

3. Apply the resources: - Apply the NetworkPolicy and service using 'kubectl apply -f networkpolicy.yaml' and 'kubectl apply -f redis- service.yamP. 4. Verify: - Check the status of the NetworkPolicy and service: - 'kubectl get networkpolicies allow-specific-pods-to-redis -n - 'kubectl get services redis-service -n 5. Test: - From a pod labeled with 'app: allowed-app', try to connect to the Redis service using the NodePort on the node. - From a pod that doesn't have the 'allowed-app' label, attempt to connect to the Redis service using the NodePort. You should not be able to connect. Note: Replace with the actual namespace where your Redis deployment and the pods allowed to access it are located.

問題 #75
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.

答案：

解題說明：
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

問題 #76
......

CKA學習指南: https://www.testpdf.net/CKA.html

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