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| Section | Weight | Objectives |
|---|---|---|
| Cluster Hardening | 15% | - API access restriction - Service account security - RBAC configuration - Component updates & vulnerability mitigation |
| Minimize Microservice Vulnerabilities | 20% | - OPA/Gatekeeper implementation - Pod Security Standards - Isolation & multi-tenancy - Secret management - Security contexts |
| Cluster Setup | 15% | - Binary verification - CIS benchmark compliance - Secure Ingress configuration - Node metadata protection - Network security policies |
| Monitoring, Logging and Runtime Security | 20% | - Threat detection (Falco) - Container immutability - Behavioral analytics - Incident investigation - Audit log configuration |
| Supply Chain Security | 20% | - SBOM & CI/CD security - Permitted registries - Signed artifacts & verification - Image security & scanning - Static analysis tools |
| System Hardening | 10% | - Network access control - Minimize OS attack surface - Least privilege IAM - Kernel hardening (AppArmor, seccomp) |
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NEW QUESTION # 45
You are running a Kubernetes cluster with a deployment named "my-app" that uses a container image from a public registry. The container image has a vulnerability in a library it uses. You want to apply a security patch to the container image without rebuilding it. How can you do this using container patching tools and update the deployment?
Answer:
Explanation:
Solution (Step by Step) :
1. Use a Container Patching Tool:
- Employ a container patching tool like 'kpatch' or 'image-patcher' that can apply security patches to container images Without rebuilding them. These tools allow you to modify the container image's filesystem and update libraries directly.
2. Identify the Vulnerable Library:
- Use a vulnerability scanner like Trivy to identify the specific vulnerable library within the container image.
3. Apply the Patch:
- Use the container patching tool to apply the security patch to the vulnerable library within the container image. This involves downloading the patch, modifying the container image's filesystem, and updating the relevant library files.
4. Create a Patched Image:
- The container patching tool will typically generate a new, patched container image. This patched image will contain the updated library with the security fix applied.
5. Push the Patched Image to a Registry:
- Push the patched image to your private container registry for use in deployments.
6. Update the Deployment
- Update the "my-app" deployment configuration to use the newly created patched image from your private registry.
7. Validate the Patch:
- After updating the deployment, verify that the patch has been successfully applied by running a vulnerability scan on the running container.
NEW QUESTION # 46
SIMULATION
You can switch the cluster/configuration context using the following command:
[desk@cli] $ kubectl config use-context dev
A default-deny NetworkPolicy avoid to accidentally expose a Pod in a namespace that doesn't have any other NetworkPolicy defined.
Task: Create a new default-deny NetworkPolicy named deny-network in the namespace test for all traffic of type Ingress + Egress The new NetworkPolicy must deny all Ingress + Egress traffic in the namespace test.
Apply the newly created default-deny NetworkPolicy to all Pods running in namespace test.
You can find a skeleton manifests file at /home/cert_masters/network-policy.yaml
Answer:
Explanation:
See the Explanation below
Explanation:
master1 $ k get pods -n test --show-labels
NAME READY STATUS RESTARTS AGE LABELS
test-pod 1/1 Running 0 34s role=test,run=test-pod
testing 1/1 Running 0 17d run=testing
$ vim netpol.yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: deny-network
namespace: test
spec:
podSelector: {}
policyTypes:
- Ingress
- Egress
master1 $ k apply -f netpol.yaml
Explanation:
controlplane $ k get pods -n test --show-labels
NAME READY STATUS RESTARTS AGE LABELS
test-pod 1/1 Running 0 34s role=test,run=test-pod
testing 1/1 Running 0 17d run=testing
master1 $ vim netpol1.yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: deny-network
namespace: test
spec:
podSelector: {}
policyTypes:
- Ingress
- Egress
master1 $ k apply -f netpol1.yaml
Reference:
https://kubernetes.io/docs/concepts/services-networking/network-policies/ Explanation:
controlplane $ k get pods -n test --show-labels
NAME READY STATUS RESTARTS AGE LABELS
test-pod 1/1 Running 0 34s role=test,run=test-pod
testing 1/1 Running 0 17d run=testing
master1 $ vim netpol1.yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: deny-network
namespace: test
spec:
podSelector: {}
policyTypes:
- Ingress
- Egress
master1 $ k apply -f netpol1.yaml
https://kubernetes.io/docs/concepts/services-networking/network-policies/
NEW QUESTION # 47
You have a development team that uses a private Docker registry to store container images. This registry is accessed by the team's CI/CD pipeline for building and deploying applications to Kubernetes. How would you secure the registry and ensure that only authorized users and services can access it? Explain the steps and provide example commands for each step.
Answer:
Explanation:
Solution (Step by Step) :
1. Enable TLS/SSL:
- Configure the Docker registry to use TLS/SSL encryption for all communication-
- Install a TLS certificate and configure the registry to use it.
- Update your CIICD pipeline to use HTTPS to communicate with the registry.
2. Access Control: - Implement access control mechanisms to restrict who can push and pull images to the registry. - Configure user authentication using Docker Hub, LDAP, or other supported methods. - Create user roles and grant permissions based on the users responsibilities.
3. Image Scanning: - Integrate image scanning tools to identify vulnerabilities in the container images stored in the registry. - Use tools like Clair, Anchoret or Trivy to scan images for known vulnerabilities and create alerts if any are found. - Implement policies to block the use of vulnerable images in your deployments.
4. Artifact Signatures: - Enable artifact signatures to ensure the integrity of the images stored in the registry. - Use tools like Notary or Cosign to sign images and verity their authenticity before deploying them.
5. Regular Auditing: - Implement regular audits to assess the security Of the registry and identity potential vulnerabilities. - Monitor access logs and activity logs to track user actions and identify any suspicious behavior
NEW QUESTION # 48
SIMULATION
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 qa. 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:
See the Explanation below
Explanation:
NEW QUESTION # 49
SIMULATION
Context
A PodSecurityPolicy shall prevent the creation of privileged Pods in a specific namespace.
Task
Create a new PodSecurityPolicy named prevent-psp-policy,which prevents the creation of privileged Pods.
Create a new ClusterRole named restrict-access-role, which uses the newly created PodSecurityPolicy prevent-psp-policy.
Create a new ServiceAccount named psp-restrict-sa in the existing namespace staging.
Finally, create a new ClusterRoleBinding named restrict-access-bind, which binds the newly created ClusterRole restrict-access-role to the newly created ServiceAccount psp-restrict-sa.
Answer:
Explanation:
See the Explanation below
Explanation:
NEW QUESTION # 50
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