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| Section | Weight | Objectives |
|---|---|---|
| Cluster Setup | 15% | - Secure installation configuration - Hardening cluster components |
| Monitoring, Logging and Runtime Security | 15% | - Runtime threat detection - Audit logging and monitoring |
| Cluster Hardening | 15% | - API server security - Authentication and authorization |
| Minimizing Microservice Vulnerabilities | 20% | - Container isolation and security contexts - Pod security standards |
| System Hardening | 15% | - Kernel and node security configuration - Host security controls |
| Supply Chain Security | 20% | - Secure CI/CD practices - Image scanning and verification |
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NEW QUESTION # 22
A container image scanner is set up on the cluster.
Given an incomplete configuration in the directory
/etc/kubernetes/confcontrol and a functional container image scanner with HTTPS endpoint https://test-server.local.8081/image_policy
Answer: A
Explanation:
2. Validate the control configuration and change it to implicit deny.
Finally, test the configuration by deploying the pod having the image tag as latest.
NEW QUESTION # 23
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 # 24
You have a Kubernetes cluster with a sensitive workload running in a specific namespace. You need to restrict access to this namespace to only authorized users- How would you achieve this using Role-Based Access Control (RBAC)?
Answer:
Explanation:
Solution (Step by Step):
1. Create a Role: Define a Role that grants only the required permissions to access the sensitive namespace.
- Name: 'namespace-access-role' (you can choose any name)
- Namespace: The namespace you want to restrict access to.
- Rules:
- Resources: Specify the resources that the role allows access to. For example, 'pods", 'deployments', 'services', etc.
- Verbs: Define the allowed actions on tne resources. For example, 'get', 'list, 'watch', 'create', 'update' , 'delete', etc.
- ApiGroups: Specify the API group that the resources belong to. For example, 'apps', 'extensions' , etc.
- You can use wildcards to grant access to all resources or all verbs.
2. Create a ROIeBinding: Associate the Role with specific users or groups.
- Name: 'namespace-access-binding' (you can choose any name)
- Namespace: The namespace you want to restrict access to.
_ RoleRef-.
- Kind: 'Role' (since you are using a Role)
- Name: The name of the Role you created.
- ApiGroup: 'rbac.authorization.k8s.i0'
- Subjects: Define the users or groups that should have access to this Role.
- Kind: Specify whether it's a user or group.
- Name: The username or group name.
- ApiGroup: 'rbac.authorization.k8s.io'
3. Apply the Role and Role3inding:
- Use 'kubectl apply -f role.yaml' and 'kubectl apply -f rolebinding.yamr to create the Role and RoleBinding respectively
Example YAML for Role and Role8inding:
Role (role-yaml)
Role8inding (rolebinding.yaml)
- The Role 'namespace-access-role' grants permissions to access 'deployments' , 'pods' , 'services', and 'secrets' in the - The RoleBinding 'namespace-access-binding' associates this Role with the user - This setup Will restrict access to the namespace to only tne user Important Notes: - R8AC is a powerful mechanism to control access to resources in Kubernetes- - It's important to understand the different RBAC components (Role, RoleBinding, ClusterRole, ClusterRole8inding) and their usage. - Define granular permissions to ensure least privilege access and enhance security.
NEW QUESTION # 25
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 # 26
SIMULATION
Context
This cluster uses containerd as CRI runtime.
Containerd's default runtime handler is runc. Containerd has been prepared to support an additional runtime handler, runsc (gVisor).
Task
Create a RuntimeClass named sandboxed using the prepared runtime handler named runsc.
Update all Pods in the namespace server to run on gVisor.
Answer:
Explanation:
See the Explanation below
Explanation:
NEW QUESTION # 27
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