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| Section | Weight | Objectives |
|---|---|---|
| Minimize Microservice Vulnerabilities | 20% | - OPA/Gatekeeper implementation - Pod Security Standards - Isolation & multi-tenancy - Secret management - Security contexts |
| Cluster Hardening | 15% | - Component updates & vulnerability mitigation - RBAC configuration - API access restriction - Service account security |
| Cluster Setup | 15% | - Node metadata protection - Network security policies - Secure Ingress configuration - CIS benchmark compliance - Binary verification |
| Monitoring, Logging and Runtime Security | 20% | - Container immutability - Audit log configuration - Incident investigation - Behavioral analytics - Threat detection (Falco) |
| Supply Chain Security | 20% | - Signed artifacts & verification - Image security & scanning - Static analysis tools - Permitted registries - SBOM & CI/CD security |
| System Hardening | 10% | - Minimize OS attack surface - Network access control - Kernel hardening (AppArmor, seccomp) - Least privilege IAM |
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NEW QUESTION # 58
Secrets stored in the etcd is not secure at rest, you can use the etcdctl command utility to find the secret value for e.g:-
Answer: A
Explanation:
Output
Using the Encryption Configuration, Create the manifest, which secures the resource secrets using the provider AES-CBC and identity, to encrypt the secret-data at rest and ensure all secrets are encrypted with the new configuration.
NEW QUESTION # 59
Create a User named john, create the CSR Request, fetch the certificate of the user after approving it.
Create a Role name john-role to list secrets, pods in namespace john
Finally, Create a RoleBinding named john-role-binding to attach the newly created role john-role to the user john in the namespace john. To Verify: Use the kubectl auth CLI command to verify the permissions.
Answer:
Explanation:
se kubectl to create a CSR and approve it.
Get the list of CSRs:
kubectl get csr
Approve the CSR:
kubectl certificate approve myuser
Get the certificate
Retrieve the certificate from the CSR:
kubectl get csr/myuser -o yaml
here are the role and role-binding to give john permission to create NEW_CRD resource:
kubectl apply -f roleBindingJohn.yaml --as=john
rolebinding.rbac.authorization.k8s.io/john_external-rosource-rb created kind: RoleBinding apiVersion: rbac.authorization.k8s.io/v1 metadata:
name: john_crd
namespace: development-john
subjects:
- kind: User
name: john
apiGroup: rbac.authorization.k8s.io
roleRef:
kind: ClusterRole
name: crd-creation
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: crd-creation
rules:
- apiGroups: ["kubernetes-client.io/v1"]
resources: ["NEW_CRD"]
verbs: ["create, list, get"]
NEW QUESTION # 60
SIMULATION
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 # 61
Your Kubernetes cluster iS running a web application that requires access to a database hosted on an external Cloud provider. Describe how you can secure the connection between the application and the database using TLS/SSL encryption and identity-based authentication.
Answer:
Explanation:
Solution (Step by Step) :
1. Configure TLS/SSL Encryption:
- Generate Certificate: Obtain a TLS/SSL certificate from a trusted certificate authority (CA) or use a self-signed certificate for development purposes-
- Install Certificate on Database Server: Install the certificate on the database server, making it available to the database service.
- Configure Database Service: Configure the database service to accept connections only over TLS/SSL.
- Configure Application Container:
- Mount Certificate: Mount the TLS/SSL certificate into the application container as a secret.
- Configure Application Code: Update the application code to use the certificate when connecting to the database.
2. Implement Identity-Based Authentication:
- Create Database User: Create a dedicated database user specifically for the web application.
- Grant Permissions: Grant appropriate permissions to the database user, limiting access to the necessary tables and data.
- Use Authentication Plugin: Configure the database service to use an authentication plugin that supports identity-based authentication.
- Generate Database Credentials: Generate database credentials (usemame and password) for the application.
- Store Credentials Secretly: Store the database credentials securely as a Kubernetes secret.
- Access Credentials from Application: Configure the application to access the database credentials from the secret.
3. Connect Application to Database:
- Configure Connection String: Update the application's connection string to use TLS/SSL and the database user credentials.
- Example Connection String:
jdbc:postgresql://database-host:5432/database-name?ssl=true&sslmode=require&user=app user&password=app-password
4. Security Considerations:
- Certificate Validation: Ensure the certificate is validated by the application to prevent man-in-the-middle attacks.
- Secure Credential Management: Implement strong security measures to protect the database credentials stored as secrets.
- Access Control: Limit access to the database to only authorized users and applications.
- Network Isolatiom Consider using network policies to isolate the web application from other workloads and restrict unnecessary network traffic.
NEW QUESTION # 62
You have an application running in a Kubernetes cluster that requires access to a database hosted in a different namespace. You want to implement a secure mecnanism to allow the application to access the database witnout granting it access to all resources in the database namespace.
Answer:
Explanation:
Solution (Step by Step) :
1. Create a Service Account in the Application Namespace:
- In the application's namespace, create a service account named 'db-access-sa'
2. Create a Role in the Database Namespace:
- In the database namespace, create a custom role named 'db-access-role' that grants only the required permissions to the database.
- For example, you might grant access to specific database tables, views, or stored procedures.
- Create a custom role named 'db-access-role' in the namespace where your database is running to grant only read permissions to the database.
3. Create a ROIeBinding in the Database Namespace: - In the database namespace, create a role binding named 'db-access-binding' that associates the 'db-access-sa' service account (from the application's namespace) with the 'db-access-role'.
4. Configure Your Application: - Configure your application deployment to use the 'db-access-sa' service account. - Use the Kubernetes API to connect to the database using the provided credentials or secrets.
NEW QUESTION # 63
......
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