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| Section | Weight | Objectives |
|---|---|---|
| System Hardening | 15% | - Host security controls - Kernel and node security configuration |
| Minimizing Microservice Vulnerabilities | 20% | - Container isolation and security contexts - Pod security standards |
| Cluster Hardening | 15% | - Authentication and authorization - API server security |
| Monitoring, Logging and Runtime Security | 15% | - Audit logging and monitoring - Runtime threat detection |
| Supply Chain Security | 20% | - Secure CI/CD practices - Image scanning and verification |
| Cluster Setup | 15% | - Hardening cluster components - Secure installation configuration |
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NEW QUESTION # 23
You need to configure a Kubernetes cluster to use a pod security policy (PSP) that restricts the use of privileged containers and specific capabilities. You want to only allow specific pods in the 'production' namespace to run With the 'NET_ADMIN' capability.
Answer:
Explanation:
Solution (Step by Step) :
1. create a PSPI
- Define a PSP that restricts the use of privileged containers and capabilities, except for the capability for pods in the 'production' namespace.
2. Create a PSP Binding: - Bind the PSP to the 'production' namespace-
3. Create a Pod: - Create a Pod in the 'production' namespace and specify the 'securitycontext' with the 'NET_ADMIN' capability.
4. Apply the YAML files: - Apply the created YAML files using 'kubectl apply -f 5. Verify the permissions: - Try to create a Pod in other namespaces with the 'NET_ADMIN' capability. It should be rejected.
NEW QUESTION # 24
Analyze and edit the given Dockerfile
FROM ubuntu:latest
RUN apt-get update -y
RUN apt-install nginx -y
COPY entrypoint.sh /
ENTRYPOINT ["/entrypoint.sh"]
USER ROOT
Fixing two instructions present in the file being prominent security best practice issues Analyze and edit the deployment manifest file apiVersion: v1 kind: Pod metadata:
name: security-context-demo-2
spec:
securityContext:
runAsUser: 1000
containers:
- name: sec-ctx-demo-2
image: gcr.io/google-samples/node-hello:1.0
securityContext:
runAsUser: 0
privileged: True
allowPrivilegeEscalation: false
Fixing two fields present in the file being prominent security best practice issues Don't add or remove configuration settings; only modify the existing configuration settings Whenever you need an unprivileged user for any of the tasks, use user test-user with the user id 5487
Answer: A
NEW QUESTION # 25
You are managing a Kubernetes cluster With a critical application deployed as a Deployment. You need to ensure that only authorized users can access the Kubernetes API to manage this application's resources. Describe the security measures you would implement to restrict access to the Kubernetes API and ensure only authorized users can manage this specific Deployment
Answer:
Explanation:
Solution (Step by Step):
1. Create a Service Account:
- Create a dedicated Service Account for the application:
2. Configure the Deployment to use the Service Account - Update the Deployment YAML to specify the Service Account:
3. Use RBAC (Role-Based Access Control): - Create a Role and RoleBinding for the Service Account:
4. Apply the Changes: - Apply the YAML configurations using 'kubectl apply -f critical-app.yaml' 5. Restrict Access to the Kubernetes API: - Use kubeconfig files to limit access to the API for specific users or groups. - Use tools like 'kubectl auth can-i' to verify access permissions. 6. Limit Access to Specific Namespaces: - By default, Service Accounts have access to resources in their respective namespaces. - To further restrict access, create a Namespace and limit the Service Account's permissions within that namespace. By implementing these measures, you create a secure environment where only authorized users (through the Service Account) can manage the critical application's Deployment
NEW QUESTION # 26
You must complete this task on the following cluster/nodes:
Cluster: apparmor
Master node: master
Worker node: worker1
You can switch the cluster/configuration context using the following command:
[desk@cli] $ kubectl config use-context apparmor
Given: AppArmor is enabled on the worker1 node.
Task:
On the worker1 node,
1. Enforce the prepared AppArmor profile located at: /etc/apparmor.d/nginx
2. Edit the prepared manifest file located at /home/cert_masters/nginx.yaml to apply the apparmor profile
3. Create the Pod using this manifest
Answer:
Explanation:
[desk@cli] $ ssh worker1
[worker1@cli] $apparmor_parser -q /etc/apparmor.d/nginx
[worker1@cli] $aa-status | grep nginx
nginx-profile-1
[worker1@cli] $ logout
[desk@cli] $vim nginx-deploy.yaml
Add these lines under metadata:
annotations: # Add this line
container.apparmor.security.beta.kubernetes.io/<container-name>: localhost/nginx-profile-1
[desk@cli] $kubectl apply -f nginx-deploy.yaml
Explanation
[desk@cli] $ ssh worker1
[worker1@cli] $apparmor_parser -q /etc/apparmor.d/nginx
[worker1@cli] $aa-status | grep nginx
nginx-profile-1
[worker1@cli] $ logout
[desk@cli] $vim nginx-deploy.yaml
[desk@cli] $kubectl apply -f nginx-deploy.yaml pod/nginx-deploy created Reference: https://kubernetes.io/docs/tutorials/clusters/apparmor/ pod/nginx-deploy created
[desk@cli] $kubectl apply -f nginx-deploy.yaml pod/nginx-deploy created Reference: https://kubernetes.io/docs/tutorials/clusters/apparmor/
NEW QUESTION # 27
SIMULATION
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
Answer:
Explanation:
See the Explanation below
Explanation:
NEW QUESTION # 28
......
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