1500 Questions | KCNA Kubernetes and Cloud Native Associate

Containers and Kubernetes (20%): Deep diving into Kubernetes architecture and managing objects like Pods, Deployments, and StatefulSets.

Cloud-Native Applications (20%): Mastering modern architectures, including Serverless, Functions as a Service (FaaS), and event-driven designs.

Security and Networking (20%): Learning how to secure clusters and manage traffic through Network Policies and Service Mesh networking.

Deployment and Management (20%): Focusing on real-world cluster management, including autoscaling, monitoring, and deployment strategies.

B, Deployment

C, StatefulSet

D, DaemonSet

E, ConfigMap

F, Job

Correct Answer: C

Explanation:

B (Incorrect): Deployments are intended for stateless applications where pods are interchangeable and do not maintain a persistent identity,

C (Correct): StatefulSets are designed specifically for applications like databases that need stable network identifiers and persistent storage across pod rescheduling,

D (Incorrect): DaemonSets ensure a copy of a pod runs on every node in a cluster, typically used for logging or monitoring,

E (Incorrect): A ConfigMap is used to store non-confidential data in key-value pairs, not for managing pod lifecycles,

F (Incorrect): Jobs are used for finite tasks that run to completion, not for long-running stateful applications,

Question 2: In a Cloud-Native architecture, what is the primary purpose of a Service Mesh like Istio or Linkerd?

B, To manage service-to-service communication, security, and observability

C, To replace the need for a Kubernetes API server

D, To store container images in a private registry

E, To act as a primary database for microservices

F, To compile source code into container images

Correct Answer: B

Explanation:

A (Incorrect): Service meshes are software layers, not hardware,

C (Incorrect): The API server is the brain of Kubernetes; a service mesh works alongside it, not instead of it,

D (Incorrect): This is the role of a Container Registry,

E (Incorrect): Service meshes do not store application data; they manage traffic,

F (Incorrect): This is the role of CI/CD tools or build systems like Docker,

Question 3: Which cloud-native concept allows developers to run code in response to events without managing the underlying server infrastructure?

B, Container Runtime

C, Serverless / Functions as a Service (FaaS)

D, Virtual Machine Scaling

E, Persistent Volume Claims

F, Static Routing

Correct Answer: C

Explanation:

A (Incorrect): Monoliths are single-tiered software applications where all components are bundled together, requiring manual server management,

B (Incorrect): The runtime (like containerd) is the software that runs containers but does not define the architectural pattern,

D (Incorrect): While VMs can scale, the developer is still responsible for much of the underlying OS and environment,

E (Incorrect): This is a request for storage in Kubernetes, not a compute model,

F (Incorrect): Static routing is a networking configuration and has nothing to do with serverless execution,

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