CKS新版題庫上線：Certified Kubernetes Security Specialist (CKS)考試即時下載|更新的CKS

順便提一下，可以從雲存儲中下載Testpdf CKS考試題庫的完整版：https://drive.google.com/open?id=1F3WGCGzKFYFC-UWDtXE3k28N8HS2iFqr

Testpdf是個為Linux Foundation CKS 認證考試提供短期的有效培訓的網站，但是Testpdf能保證你的Linux Foundation CKS 認證考試及格。如果你不及格，我們會全額退款。在你選擇購買Testpdf的產品之前，你可以在Testpdf的網站上免費下載我們提供的部分關於Linux Foundation CKS認證考試的練習題及答案作為嘗試，那樣你會更有信心選擇Testpdf的產品來準備你的Linux Foundation CKS 認證考試。

CKS 認證考試旨在針對對 Kubernetes 架構和安全概念具有扎實理解的專業人士。這對於那些負責在其組織中保護 Kubernetes 集群的人士來說也是理想的。考試涵蓋多個主題，包括 Kubernetes 安裝和配置、網絡安全、訪問管理和 Kubernetes 集群硬化。該考試旨在測試候選人在 Kubernetes 環境中識別和緩解安全威脅的能力。

CKS新版題庫上線

CKS考古題更新 - CKS認證

你瞭解Testpdf的CKS考試考古題嗎？為什麼用過的人都讚不絕口呢？是不是很想試一試它是否真的那麼有效果？趕快點擊Testpdf的網站去下載吧，每個問題都有提供demo，覺得好用可以立即購買。你購買了考古題以後還可以得到一年的免費更新服務，一年之內，只要你想更新你擁有的資料，那麼你就可以得到最新版。有了這個資料你就能輕鬆通過CKS考試，獲得資格認證。

最新的 Kubernetes Security Specialist CKS 免費考試真題 (Q24-Q29):

問題 #24
Given an existing Pod named test-web-pod running in the namespace test-system Edit the existing Role bound to the Pod's Service Account named sa-backend to only allow performing get operations on endpoints.
Create a new Role named test-system-role-2 in the namespace test-system, which can perform patch operations, on resources of type statefulsets.

A. Create a new RoleBinding named test-system-role-2-binding binding the newly created Role to the Pod's ServiceAccount sa-backend.

答案：A

問題 #25
Cluster: dev
Master node: master1 Worker node: worker1
You can switch the cluster/configuration context using the following command: [desk@cli] $ kubectl config use-context dev Task: Retrieve the content of the existing secret named adam in the safe namespace.
Store the username field in a file names /home/cert-masters/username.txt, and the password field in a file named /home/cert-masters/password.txt.
1. You must create both files; they don't exist yet. 2. Do not use/modify the created files in the following steps, create new temporary files if needed.
Create a new secret names newsecret in the safe namespace, with the following content: Username: dbadmin Password: moresecurepas Finally, create a new Pod that has access to the secret newsecret via a volume:
Namespace: safe
Pod name: mysecret-pod
Container name: db-container
Image: redis
Volume name: secret-vol
Mount path: /etc/mysecret

答案：

解題說明：

問題 #26
Use the kubesec docker images to scan the given YAML manifest, edit and apply the advised changes, and passed with a score of 4 points.
kubesec-test.yaml
apiVersion: v1
kind: Pod
metadata:
name: kubesec-demo
spec:
containers:
- name: kubesec-demo
image: gcr.io/google-samples/node-hello:1.0
securityContext:
readOnlyRootFilesystem: true
Hint: docker run -i kubesec/kubesec:512c5e0 scan /dev/stdin kubesec-test.yaml

答案：

解題說明：
kubesec scan k8s-deployment.yaml
cat EOF kubesec-test.yaml
apiVersion: v1
kind: Pod
metadata:
name: kubesec-demo
spec:
containers:
- name: kubesec-demo
image: gcr.io/google-samples/node-hello:1.0
securityContext:
readOnlyRootFilesystem: true
EOF
kubesec scan kubesec-test.yaml
docker run -i kubesec/kubesec:512c5e0 scan /dev/stdin kubesec-test.yaml kubesec http 8080
[1] 12345
{"severity":"info","timestamp":"2019-05-12T11:58:34.662+0100","caller":"server/server.go:69","message":"Starting HTTP server on port 8080"} curl -sSX POST --data-binary @test/asset/score-0-cap-sys-admin.yml http://localhost:8080/scan
[
{
"object": "Pod/security-context-demo.default",
"valid": true,
"message": "Failed with a score of -30 points",
"score": -30,
"scoring": {
"critical": [
{
"selector": "containers[] .securityContext .capabilities .add == SYS_ADMIN",
"reason": "CAP_SYS_ADMIN is the most privileged capability and should always be avoided"
},
{
"selector": "containers[] .securityContext .runAsNonRoot == true",
"reason": "Force the running image to run as a non-root user to ensure least privilege"
},
// ...

問題 #27
You can switch the cluster/configuration context using the following command:
[desk@cli] $ kubectl config use-context test-account
Task: Enable audit logs in the cluster.
To do so, enable the log backend, and ensure that:
1. logs are stored at /var/log/Kubernetes/logs.txt
2. log files are retained for 5 days
3. at maximum, a number of 10 old audit log files are retained
A basic policy is provided at /etc/Kubernetes/logpolicy/audit-policy.yaml. It only specifies what not to log.
Note: The base policy is located on the cluster's master node.
Edit and extend the basic policy to log:
1. Nodes changes at RequestResponse level
2. The request body of persistentvolumes changes in the namespace frontend
3. ConfigMap and Secret changes in all namespaces at the Metadata level Also, add a catch-all rule to log all other requests at the Metadata level Note: Don't forget to apply the modified policy.

答案：

解題說明：
$ vim /etc/kubernetes/log-policy/audit-policy.yaml
- level: RequestResponse
userGroups: ["system:nodes"]
- level: Request
resources:
- group: "" # core API group
resources: ["persistentvolumes"]
namespaces: ["frontend"]
- level: Metadata
resources:
- group: ""
resources: ["configmaps", "secrets"]
- level: Metadata
$ vim /etc/kubernetes/manifests/kube-apiserver.yaml
Add these
- --audit-policy-file=/etc/kubernetes/log-policy/audit-policy.yaml
- --audit-log-path=/var/log/kubernetes/logs.txt
- --audit-log-maxage=5
- --audit-log-maxbackup=10
Explanation
[desk@cli] $ ssh master1
[master1@cli] $ vim /etc/kubernetes/log-policy/audit-policy.yaml
apiVersion: audit.k8s.io/v1 # This is required.
kind: Policy
# Don't generate audit events for all requests in RequestReceived stage.
omitStages:
- "RequestReceived"
rules:
# Don't log watch requests by the "system:kube-proxy" on endpoints or services
- level: None
users: ["system:kube-proxy"]
verbs: ["watch"]
resources:
- group: "" # core API group
resources: ["endpoints", "services"]
# Don't log authenticated requests to certain non-resource URL paths.
- level: None
userGroups: ["system:authenticated"]
nonResourceURLs:
- "/api*" # Wildcard matching.
- "/version"
# Add your changes below
- level: RequestResponse
userGroups: ["system:nodes"] # Block for nodes
- level: Request
resources:
- group: "" # core API group
resources: ["persistentvolumes"] # Block for persistentvolumes
namespaces: ["frontend"] # Block for persistentvolumes of frontend ns
- level: Metadata
resources:
- group: "" # core API group
resources: ["configmaps", "secrets"] # Block for configmaps secrets
- level: Metadata # Block for everything else
[master1@cli] $ vim /etc/kubernetes/manifests/kube-apiserver.yaml
apiVersion: v1
kind: Pod
metadata:
annotations:
kubeadm.kubernetes.io/kube-apiserver.advertise-address.endpoint: 10.0.0.5:6443 labels:
component: kube-apiserver
tier: control-plane
name: kube-apiserver
namespace: kube-system
spec:
containers:
- command:
- kube-apiserver
- --advertise-address=10.0.0.5
- --allow-privileged=true
- --authorization-mode=Node,RBAC
- --audit-policy-file=/etc/kubernetes/log-policy/audit-policy.yaml #Add this
- --audit-log-path=/var/log/kubernetes/logs.txt #Add this
- --audit-log-maxage=5 #Add this
- --audit-log-maxbackup=10 #Add this
...
output truncated
Note: log volume policy volume is already mounted in vim /etc/kubernetes/manifests/kube-apiserver.yaml so no need to mount it. Reference: https://kubernetes.io/docs/tasks/debug-application-cluster/audit/ Note: log volume policy volume is already mounted in vim /etc/kubernetes/manifests/kube-apiserver.yaml so no need to mount it. Reference: https://kubernetes.io/docs/tasks/debug-application-cluster/audit/

問題 #28
Enable audit logs in the cluster, To Do so, enable the log backend, and ensure that
1. logs are stored at /var/log/kubernetes/kubernetes-logs.txt.
2. Log files are retained for 5 days.
3. at maximum, a number of 10 old audit logs files are retained.
Edit and extend the basic policy to log:
1. Cronjobs changes at RequestResponse
2. Log the request body of deployments changes in the namespace kube-system.
3. Log all other resources in core and extensions at the Request level.
4. Don't log watch requests by the "system:kube-proxy" on endpoints or

答案：

解題說明：

問題 #29
......

用最放鬆的心態面對一切艱難。Linux Foundation的CKS考試雖然很艱難，但我們考生要用最放鬆的心態來面對一切艱難，因為Testpdf Linux Foundation的CKS考試培訓資料會幫助我們順利通過考試，有了它我們就不會害怕，不會迷茫。Testpdf Linux Foundation的CKS考試培訓資料是我們考生的最佳良藥。

CKS考古題更新: https://www.testpdf.net/CKS.html

最安全和最便捷的Linux Foundation CKS考過題購買過程，因為我們可以提供領先的培訓技術幫助考生輕松通過 CKS考古題更新 - Certified Kubernetes Security Specialist (CKS) 認證考試，提供最新的題庫，幫您順利的通過 CKS 認證考試，有了這些現實的東西，你將得到你想要的一切，有人說，通過了Linux Foundation的CKS的考試認證就等於走向了成功，沒錯，這是真的，你有了你想要的一切就是成功的表現之一，Linux Foundation CKS新版題庫上線只有這樣，妳手中的IT認證可以最大限度地發揮其價值，只要有Testpdf CKS考古題更新的考古題在手，什么考试都不是问题，很多準備參加Linux Foundation CKS 認證考試的考生在網上也許看到了很多網站也線上提供有關Linux Foundation CKS 認證考試的資源。

妳是不是在想，妳怎麽會動不了，皚皚白雪覆蓋西宛城，就連城墻上的妖兵們都在打寒顫，最安全和最便捷的Linux Foundation CKS考過題購買過程，因為我們可以提供領先的培訓技術幫助考生輕松通過 Certified Kubernetes Security Specialist (CKS) 認證考試。