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| Section | Weight | Objectives |
|---|---|---|
| Minimizing Microservice Vulnerabilities | 20% | - Pod security standards - Container isolation and security contexts |
| Cluster Setup | 15% | - Hardening cluster components - Secure installation configuration |
| Cluster Hardening | 15% | - API server security - Authentication and authorization |
| System Hardening | 15% | - Host security controls - Kernel and node security configuration |
| Supply Chain Security | 20% | - Secure CI/CD practices - Image scanning and verification |
| Monitoring, Logging and Runtime Security | 15% | - Runtime threat detection - Audit logging and monitoring |
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NEW QUESTION # 13
You are deploying a critical application on your Kubernetes cluster. You want to ensure that only certified and trusted container images are allowed to be deployed- How can you implement an Image Signature Verification process to ensure that all images pulled from your Docker registry are signed with a trusted key?
Answer:
Explanation:
Solution (Step by Step) :
1. Generate Key Pair: Generate a public and private key pair for signing container images.
bash
openssl genrsa -out private-key 2048
openssl rsa -pubout -in private-key -out public-key
2. Sign Container Image: use the private key to sign the container image-
bash
docker build -t my-app:latest
cosign Sign --key private.key my-app:latest
3. Push Signed Image: Push the signed image to your Docker registry.
bash
docker push my-app:latest
4. Configure Kubernetes Image Policy: Configure a Kubernetes ImagePolicyWebhook using a tool like Admission Webhook Controller to enforce image signature verification. The webhook can be configured to check for the presence of a valid signature using the public key and to reject images without a valid signature.
5. Deploy Image Policy Webhook: Deploy the ImagePolicyWebhook configuration using 'kubectl apply -f image-policy-webhook.yamr 6. Test Image Signature Verificatiom Create a new Deployment using an unsigned image. The deployment should be rejected by the webhook.
Note: This is a basic example. You can configure more advanced image signature verification policies based on your security needs and requirements. For example, you can enforce specific image signing policies, use multiple keys, and configure different failure policies.
NEW QUESTION # 14
Context
A Role bound to a Pod's ServiceAccount grants overly permissive permissions. Complete the following tasks to reduce the set of permissions.
Task
Given an existing Pod named web-pod running in the namespace security.
Edit the existing Role bound to the Pod's ServiceAccount sa-dev-1 to only allow performing watch operations, only on resources of type services.
Create a new Role named role-2 in the namespace security, which only allows performing update operations, only on resources of type namespaces.
Create a new RoleBinding named role-2-binding binding the newly created Role to the Pod's ServiceAccount.
Answer:
Explanation:
NEW QUESTION # 15
SIMULATION
Using the runtime detection tool Falco, Analyse the container behavior for at least 20 seconds, using filters that detect newly spawning and executing processes in a single container of Nginx.
store the incident file art /opt/falco-incident.txt, containing the detected incidents. one per line, in the format
[timestamp],[uid],[processName]
Answer: A
NEW QUESTION # 16
SIMULATION
Create a network policy named allow-np, that allows pod in the namespace staging to connect to port 80 of other pods in the same namespace.
Ensure that Network Policy:-
1. Does not allow access to pod not listening on port 80.
2. Does not allow access from Pods, not in namespace staging.
Answer:
Explanation:
See the Explanation belowExplanation:
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: network-policy
spec:
podSelector: {} #selects all the pods in the namespace deployed
policyTypes:
- Ingress
ingress:
- ports: #in input traffic allowed only through 80 port only
- protocol: TCP
port: 80
NEW QUESTION # 17
You have a Kubernetes cluster running a critical application with multiple deployments. You need to ensure that only authorized users can access the application's configuration files stored in ConfigMaps.
Answer:
Explanation:
Solution (Step by Step) :
1. Create a ROE for ConngMap Access:
- Create a Role YAML file named 'configmap-reader.yaml' to grant read-only access to ConfigMaps:
2. Create a RoIeBinding to Assign the Role: - Create a RoleBinding YAML file named 'configmap-reader-binding.yaml' to bind the 'configmap-reader' role to a specific user or group:
3. Apply the Role and RoleBinding: - Apply the YAML files using kubectl apply -f configmap-reader.yaml configmap-reader-binding.yaml 4. Create a ConfigMap: - Create a ConfigMap named 'app-config' that contains sensitive configuration information:
5. Verify Access Restrictions: - Log in as the 'authorized-user and try accessing the 'app-config' ConfigMap using 'kubectl get configmap app-config' _ You should be able to view the ContigMap data. - Log in as a different user who does not have the 'configmap-reader' role assigned. Try accessing the 'app-config' ConfigMap. You should not be able to access it.
NEW QUESTION # 18
......
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