CKS RELIABLE TEST NOTES | KEY CKS CONCEPTS

CKS Reliable Test Notes | Key CKS Concepts

CKS Reliable Test Notes | Key CKS Concepts

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Tags: CKS Reliable Test Notes, Key CKS Concepts, Valid CKS Exam Discount, CKS Valid Exam Experience, Latest CKS Test Materials

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Linux Foundation Certified Kubernetes Security Specialist (CKS) exam is a certification that validates the expertise of Kubernetes security professionals. Certified Kubernetes Security Specialist (CKS) certification exam is designed to test the knowledge, skills, and abilities of professionals who can design, deploy, and manage secure Kubernetes clusters. The CKS certification exam is an advanced level certification that requires candidates to have prior knowledge and experience of Kubernetes security principles and best practices.

The CKS certification exam is a must-have credential for security specialists who are responsible for securing Kubernetes-based systems. Certified Kubernetes Security Specialist (CKS) certification demonstrates mastery of best security practices within Kubernetes environments, which is a critical competency for businesses that use cloud-native technologies. Passing the exam requires significant skill and hard work, but once obtained, this certification greatly increases job prospects and earning potential.

The CKS Certification is a valuable credential for security professionals, DevOps engineers, and developers who work with Kubernetes. It demonstrates the candidate's expertise in Kubernetes security and validates their ability to secure Kubernetes applications in a variety of environments. The CKS certification can help candidates enhance their career prospects and advance their professional goals, as it is a widely recognized and respected credential in the industry.

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Complete CKS Reliable Test Notes & Leader in Qualification Exams & Newest Key CKS Concepts

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Linux Foundation Certified Kubernetes Security Specialist (CKS) Sample Questions (Q29-Q34):

NEW QUESTION # 29
Cluster: scanner
Master node: controlplane
Worker node: worker1
You can switch the cluster/configuration context using the following command:
[desk@cli] $ kubectl config use-context scanner
Given:
You may use Trivy's documentation.
Task:
Use the Trivy open-source container scanner to detect images with severe vulnerabilities used by Pods in the namespace nato.
Look for images with High or Critical severity vulnerabilities and delete the Pods that use those images.
Trivy is pre-installed on the cluster's master node. Use cluster's master node to use Trivy.

Answer:

Explanation:
[controlplane@cli] $ k get pods -n nato -o yaml | grep "image: "
[controlplane@cli] $ trivy image <image-name>
[controlplane@cli] $ k delete pod <vulnerable-pod> -n nato
[desk@cli] $ ssh controlnode
[controlplane@cli] $ k get pods -n nato
NAME READY STATUS RESTARTS AGE
alohmora 1/1 Running 0 3m7s
c3d3 1/1 Running 0 2m54s
neon-pod 1/1 Running 0 2m11s
thor 1/1 Running 0 58s
[controlplane@cli] $ k get pods -n nato -o yaml | grep "image: "

[controlplane@cli] $ k delete pod thor -n nato
[controlplane@cli] $ k delete pod neon-pod -n nato Reference: https://github.com/aquasecurity/trivy
[controlplane@cli] $ k delete pod neon-pod -n nato Reference: https://github.com/aquasecurity/trivy


NEW QUESTION # 30
Context
Your organization's security policy includes:
ServiceAccounts must not automount API credentials
ServiceAccount names must end in "-sa"
The Pod specified in the manifest file /home/candidate/KSCH00301 /pod-m nifest.yaml fails to schedule because of an incorrectly specified ServiceAccount.
Complete the following tasks:
Task
1. Create a new ServiceAccount named frontend-sa in the existing namespace q a. Ensure the ServiceAccount does not automount API credentials.
2. Using the manifest file at /home/candidate/KSCH00301 /pod-manifest.yaml, create the Pod.
3. Finally, clean up any unused ServiceAccounts in namespace qa.

Answer:

Explanation:



NEW QUESTION # 31
You must complete this task on the following cluster/nodes: Cluster: immutable-cluster Master node: master1 Worker node: worker1 You can switch the cluster/configuration context using the following command:
[desk@cli] $ kubectl config use-context immutable-cluster
Context: It is best practice to design containers to be stateless and immutable.
Task:
Inspect Pods running in namespace prod and delete any Pod that is either not stateless or not immutable.
Use the following strict interpretation of stateless and immutable:
1. Pods being able to store data inside containers must be treated as not stateless.
Note: You don't have to worry whether data is actually stored inside containers or not already.
2. Pods being configured to be privileged in any way must be treated as potentially not stateless or not immutable.

Answer:

Explanation:
k get pods -n prod
k get pod <pod-name> -n prod -o yaml | grep -E 'privileged|ReadOnlyRootFileSystem' Delete the pods which do have any of these 2 properties privileged:true or ReadOnlyRootFileSystem: false
[desk@cli]$ k get pods -n prod
NAME READY STATUS RESTARTS AGE
cms 1/1 Running 0 68m
db 1/1 Running 0 4m
nginx 1/1 Running 0 23m
[desk@cli]$ k get pod nginx -n prod -o yaml | grep -E 'privileged|RootFileSystem'
{"apiVersion":"v1","kind":"Pod","metadata":{"annotations":{},"creationTimestamp":null,"labels":{"run":"nginx"},"name":"nginx","namespace":"prod"},"spec":{"containers":[{"image":"nginx","name":"nginx","resources":{},"securityContext":{"privileged":true}}],"dnsPolicy":"ClusterFirst","restartPolicy":"Always"},"status":{}} f:privileged: {} privileged: true

[desk@cli]$ k delete pod nginx -n prod
[desk@cli]$ k get pod db -n prod -o yaml | grep -E 'privileged|RootFilesystem'

[desk@cli]$ k delete pod cms -n prod Reference: https://kubernetes.io/docs/concepts/policy/pod-security-policy/ https://cloud.google.com/architecture/best-practices-for-operating-containers Reference:
[desk@cli]$ k delete pod cms -n prod Reference: https://kubernetes.io/docs/concepts/policy/pod-security-policy/ https://cloud.google.com/architecture/best-practices-for-operating-containers


NEW QUESTION # 32
You can switch the cluster/configuration context using the following command:
[desk@cli] $ kubectl config use-context dev
Context:
A CIS Benchmark tool was run against the kubeadm created cluster and found multiple issues that must be addressed.
Task:
Fix all issues via configuration and restart the affected components to ensure the new settings take effect.
Fix all of the following violations that were found against the API server:
1.2.7 authorization-mode argument is not set to AlwaysAllow FAIL
1.2.8 authorization-mode argument includes Node FAIL
1.2.7 authorization-mode argument includes RBAC FAIL
Fix all of the following violations that were found against the Kubelet:
4.2.1 Ensure that the anonymous-auth argument is set to false FAIL
4.2.2 authorization-mode argument is not set to AlwaysAllow FAIL (Use Webhook autumn/authz where possible) Fix all of the following violations that were found against etcd:
2.2 Ensure that the client-cert-auth argument is set to true

Answer:

Explanation:
worker1 $ vim /var/lib/kubelet/config.yaml
anonymous:
enabled: true #Delete this
enabled: false #Replace by this
authorization:
mode: AlwaysAllow #Delete this
mode: Webhook #Replace by this
worker1 $ systemctl restart kubelet. # To reload kubelet config
ssh to master1
master1 $ vim /etc/kubernetes/manifests/kube-apiserver.yaml
- -- authorization-mode=Node,RBAC
master1 $ vim /etc/kubernetes/manifests/etcd.yaml
- --client-cert-auth=true
Explanation
ssh to worker1
worker1 $ vim /var/lib/kubelet/config.yaml
apiVersion: kubelet.config.k8s.io/v1beta1
authentication:
anonymous:
enabled: true #Delete this
enabled: false #Replace by this
webhook:
cacheTTL: 0s
enabled: true
x509:
clientCAFile: /etc/kubernetes/pki/ca.crt
authorization:
mode: AlwaysAllow #Delete this
mode: Webhook #Replace by this
webhook:
cacheAuthorizedTTL: 0s
cacheUnauthorizedTTL: 0s
cgroupDriver: systemd
clusterDNS:
- 10.96.0.10
clusterDomain: cluster.local
cpuManagerReconcilePeriod: 0s
evictionPressureTransitionPeriod: 0s
fileCheckFrequency: 0s
healthzBindAddress: 127.0.0.1
healthzPort: 10248
httpCheckFrequency: 0s
imageMinimumGCAge: 0s
kind: KubeletConfiguration
logging: {}
nodeStatusReportFrequency: 0s
nodeStatusUpdateFrequency: 0s
resolvConf: /run/systemd/resolve/resolv.conf
rotateCertificates: true
runtimeRequestTimeout: 0s
staticPodPath: /etc/kubernetes/manifests
streamingConnectionIdleTimeout: 0s
syncFrequency: 0s
volumeStatsAggPeriod: 0s
worker1 $ systemctl restart kubelet. # To reload kubelet config
ssh to master1
master1 $ vim /etc/kubernetes/manifests/kube-apiserver.yaml

master1 $ vim /etc/kubernetes/manifests/etcd.yaml


NEW QUESTION # 33
Context
AppArmor is enabled on the cluster's worker node. An AppArmor profile is prepared, but not enforced yet.

Task
On the cluster's worker node, enforce the prepared AppArmor profile located at /etc/apparmor.d/nginx_apparmor.
Edit the prepared manifest file located at /home/candidate/KSSH00401/nginx-pod.yaml to apply the AppArmor profile.
Finally, apply the manifest file and create the Pod specified in it.

Answer:

Explanation:



NEW QUESTION # 34
......

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