A+ V14 Containers and Kubernetes Quiz

1. What is the role of kube-proxy in a Kubernetes cluster?

To manage cluster authentication

To maintain network rules for Pod communication and load balancing

To schedule Pods on nodes

To manage container images

2. In hybrid cloud Kubernetes deployments, what enables seamless workload mobility?

Standardized container images and Kubernetes API compatibility

Direct fiber connections between data centers

Identical hardware across environments

Removing firewall restrictions

3. What does the kubelet do on a Kubernetes node?

Schedules Pods across nodes

Ensures containers run in Pods as specified by the API server

Manages cluster networking

Stores container images

4. Which component stores cluster configuration and state in Kubernetes?

Kube-apiserver

Kube-controller-manager

Etcd

Kubelet

5. What is a StatefulSet in Kubernetes?

A Deployment for stateless applications

A workload for managing applications requiring stable network identity and persistent storage

A tool for managing container images

A networking configuration resource

6. In container security, what does image scanning detect?

Network latency issues

Vulnerabilities and malware in container images

Pod resource usage

Kubernetes version compatibility

7. What is the purpose of a Kubernetes Namespace?

To store container images

To provide virtual clusters for resource isolation and organization

To manage external networking

To configure container runtime settings

8. Which Kubernetes resource limits CPU and memory for a Pod?

ResourceQuota

LimitRange

Requests and Limits in the Pod specification

NodeSelector

9. What is a container registry used for?

Managing Kubernetes clusters

Storing and distributing container images

Running containers on nodes

Configuring network policies

10. In a hybrid cloud setup, what challenge do containers help address?

Dependency conflicts and environment inconsistencies

The need for more powerful hardware

Reducing network bandwidth requirements

Eliminating the need for backups

11. What is the primary purpose of containerization in cloud computing?

To package applications with dependencies for consistent deployment across environments

To replace virtual machines entirely

To increase storage capacity on servers

To eliminate the need for operating systems

12. Which networking model does Kubernetes use for Pod communication?

Each Pod gets a unique IP address; all Pods can communicate directly

Pods use NAT for communication

Pods communicate only through Services

Pods require manual routing configuration

13. What is persistent storage in Kubernetes called?

Container Volume

PersistentVolume (PV) and PersistentVolumeClaim (PVC)

Docker Volume

Cluster Storage

14. In Kubernetes, what does a Deployment manage?

Container image repositories

Replica Sets and Pod templates for declarative updates

Cluster networking only

External storage volumes

15. What is the purpose of a Kubernetes Service?

To build container images

To expose applications and provide network access to Pods

To store persistent data

To manage container registries

16. A Kubernetes Pod is the smallest deployable unit. What can it contain?

Only one container

One or more tightly coupled containers

Multiple independent applications

Only system containers

17. Which Kubernetes component is responsible for making scheduling decisions?

Kubelet

Kube-scheduler

Kube-proxy

Etcd

18. What does a Docker image contain?

Only the application code

Only the operating system

Application code, runtime, dependencies, and configuration

Only containerization metadata

19. In a hybrid cloud environment, what is a key advantage of using containers?

They ensure applications run identically on-premises and in the cloud

They eliminate latency issues between data centers

They reduce the cost of cloud storage

They replace the need for firewalls

20. Which of the following best describes Kubernetes?

A containerization platform for building images

An orchestration system for managing containerized applications at scale

A storage solution for container data

A networking protocol for container communication

A+ V14 Containers and Kubernetes for Hybrid Environments Quiz