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| Section | Objectives |
|---|---|
| Topic 1: Kubernetes Fundamentals | - Core Kubernetes concepts
|
| Topic 2: Cloud Native Architecture | - Microservices and distributed systems
|
| Topic 3: Container Orchestration | - Container lifecycle and scheduling
|
| Topic 4: Cloud Native Application Delivery | - CI/CD and deployment strategies
|
| Topic 5: Cloud Security and Governance | - Security fundamentals in cloud native systems
|
| Topic 6: Cloud Native Observability | - Monitoring and logging
|
>> KCNA Advanced Testing Engine <<
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NEW QUESTION # 302
What tool allows us to build useful visual representations of prometheus data?
Answer: A
Explanation:
https://prometheus.io/
NEW QUESTION # 303
What does the livenessProbe in Kubernetes help detect?
Answer: C
Explanation:
The livenessProbe is used to detect whether a running container has become unresponsive or is in a failed state, allowing Kubernetes to automatically restart the container to recover from the failure.
NEW QUESTION # 304
You are using Flux to manage your Kubernetes cluster with GitOps. You need to ensure that all deployments are automatically rolled back to the previous version if they fail. Which configuration option in Flux would you use to achieve this?
Answer: C
Explanation:
The •rollbackConfig• option in Flux allows you to define rollback strategies for deployments. Setting 'failed: true' ensures that if a deployment fails, it will be automatically rolled back to the previous working version, minimizing downtime and ensuring stability.
NEW QUESTION # 305
Which option best represents the Pod Security Standards ordered from most permissive to most restrictive
?
Answer: C
Explanation:
Pod Security Standards define a set of security profiles for Pods in Kubernetes, establishing clear expectations for how securely workloads should be configured. These standards were introduced to replace the deprecated PodSecurityPolicies (PSP) and are enforced through the Pod Security Admission controller. The standards are intentionally ordered from least restrictive to most restrictive to allow clusters to adopt security controls progressively.
The correct order from most permissive to most restrictive is: Privileged # Baseline # Restricted, which makes option A the correct answer.
The Privileged profile is the least restrictive. It allows Pods to run with elevated permissions, including privileged containers, host networking, host PID/IPC namespaces, and unrestricted access to host resources.
This level is intended for trusted system components, infrastructure workloads, or cases where full access to the host is required. It offers maximum flexibility but minimal security enforcement.
The Baseline profile introduces a moderate level of security. It prevents common privilege escalation vectors, such as running privileged containers or using host namespaces, while still allowing typical application workloads to function without significant modification. Baseline is designed to be broadly compatible with most applications and serves as a reasonable default security posture for many clusters.
The Restricted profile is the most secure and restrictive. It enforces strong security best practices, such as requiring containers to run as non-root users, dropping unnecessary Linux capabilities, enforcing read-only root filesystems where possible, and preventing privilege escalation. Restricted is ideal for highly sensitive workloads or environments with strict security requirements, though it may require application changes to comply.
Options B, C, and D are incorrect because they misrepresent the intended progression of security strictness defined in Kubernetes documentation.
According to Kubernetes documentation, the Pod Security Standards are explicitly ordered to support gradual adoption: start permissive where necessary and move toward stronger security over time. Therefore, Privileged, Baseline, Restricted is the accurate and fully verified ordering, making option A the correct answer.
NEW QUESTION # 306
Consider the following Dockerfile:
FROM ubuntu: latest
COPY . /
RUN apt-get update && apt-get install -y nginx
CMD ["nginx", "g", "daemon off; ' ' ]
What is the primary function of the "COPY" instruction in this Dockerfile?
Answer: A
Explanation:
The *COPY' instruction in a Dockerfile copies files from the context of the build (usually the current directory) to the container's filesystem. In this case, 'COPY . P copies all files and directories from the build context to the container's root directory (the '/' directory).
NEW QUESTION # 307
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