Docsity
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Docsity AI
Docsity AI
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search for your university

Find the specific documents for your university's exams

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

Kubernetes and Cloud Native Associate (KCNA) 2025.pdf, Exams of Nursing

Harvard UniversityNursing

Kubernetes and Cloud Native Associate (KCNA) 2025.pdf

Typology: Exams

2025/2026

Available from 03/25/2026

Olliver_
Olliver_ 🇺🇸

2.2K documents

1 / 9

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Kubernetes and Cloud Native Associate
(KCNA) 2025
CNCF - correct answer
✅
Cloud Native Computing Foundation
Parent of the CNCF - correct answer
✅
The Linux Foundation
Cluster - correct answer
✅
A logical grouping of all components within a cluster.
Namespace - correct answer
✅
A named logical grouping of Kubernetes
components within a cluster. Used to isolate different workloads on the same
cluster.
Node - correct answer
✅
A virtual machine or underlying server. There are two
types of nodes:
1) Control Plane - these manage worker nodes
2) Worker nodes - where your application or workloads run.
Pod - correct answer
✅
The smallest unit in K8s. It is an abstraction over a
container. Generally defines an application workload.
Service - correct answer
✅
A static IP address and DNS name for a set of pods
(persists an address even if a pod dies) and a load balancer.
Ingress - correct answer
✅
Translates HTTP/S rules to point to services
API Server - correct answer
✅
The API Server allows users to interact with K8s
components using the KubeCTL or by sending HTTP requests.
pf3
pf4
pf5
pf8
pf9

Partial preview of the text

Download Kubernetes and Cloud Native Associate (KCNA) 2025.pdf and more Exams Nursing in PDF only on Docsity!

(KCNA) 2025

CNCF - correct answer ✅Cloud Native Computing Foundation Parent of the CNCF - correct answer ✅The Linux Foundation Cluster - correct answer ✅A logical grouping of all components within a cluster. Namespace - correct answer ✅A named logical grouping of Kubernetes components within a cluster. Used to isolate different workloads on the same cluster. Node - correct answer ✅A virtual machine or underlying server. There are two types of nodes:

  1. Control Plane - these manage worker nodes
  2. Worker nodes - where your application or workloads run. Pod - correct answer ✅The smallest unit in K8s. It is an abstraction over a container. Generally defines an application workload. Service - correct answer ✅A static IP address and DNS name for a set of pods (persists an address even if a pod dies) and a load balancer. Ingress - correct answer ✅Translates HTTP/S rules to point to services API Server - correct answer ✅The API Server allows users to interact with K8s components using the KubeCTL or by sending HTTP requests.

(KCNA) 2025

Kubelet - correct answer ✅Kubelet is an agent installed on all nodes. Kubelet allows users to interact with nodes via the API Server and KubeCTL. KubeCTL - correct answer ✅A command line interface (CLI) that allows users to interact with the cluster and components via the API Server. Cloud Controller Manager - correct answer ✅Allows you to link a Cloud Service Provider (CSP) eg. AWS, Azure, GCP to leverage cloud services. Controller Manager - correct answer ✅A control loop that watches the state of the cluster and will change the current state back to the desired state. Scheduler - correct answer ✅Determines where to place pods on nodes. Places them in a scheduling queue. Kube Proxy - correct answer ✅An application on worker nodes that provides routing and filtering rules for ingress (incoming) traffic to pods. ConfigMap - correct answer ✅Allows you to decouple environment-specific configurations from your container images so that your applications are easily portable. Used to store non-confidential data in key-value pairs. Secret - correct answer ✅small amount of sensitive data such as a password, a token, or a key

(KCNA) 2025

What is used to deploy manifest files - correct answer ✅kubectl apply kubectl apply -f resources.yml Resource Configuration file - correct answer ✅Sometimes used to describe multiple resources in a manifest. Control Plane Node (formally known as...) - correct answer ✅Master Node Control Plan Node contains - correct answer ✅API Server

  • Core DNS
  • Controller Manager
  • Scheduler
  • Kubelet
  • etcd Worker Node - correct answer ✅The worker node runs:
  • Kubelet <--> Container Runtime
  • Kube Proxy <--> iptables Pod What manages processes such as scheduling and restarting nodes? - correct answer ✅Control Plan Node

(KCNA) 2025

What processes run in the worker node? - correct answer ✅1) Container Runtime

  1. Kube Proxy
  2. Kubelet List 3 methods you can use to interact with the API server - correct answer ✅1) UI*
  3. CLI KubeCTL
  4. API What changes the actual state to the desired state at a controlled rate? - correct answer ✅Deployment Controller What is a Deployment - correct answer ✅A Deployment provides declarative updates for Pods and ReplicaSets and defines the desired state of ReplicaSets and Pods. What pod field determines the link from a pod to a ReplicaSet? - correct answer ✅metadata.ownerReferences What is a ReplicaSet? - correct answer ✅A ReplicaSet is a way to maintain a desired number of redundant pods (replicas) to provide a guarantee of availability. What is the Headless Service? - correct answer ✅The headless service is a Service with ClusterIP set to none. It does not provide load balancing and it does not provide a static IP address.

(KCNA) 2025

kube-node-lease - correct answer ✅Holds lease objects associated with each node. Used to detect node failures by sending heartbeats. What is the command to view all namespaces - correct answer ✅kubectl get namespace What Kubernetes initial namespace is where all our pods and services run unless a namespace is specified? - correct answer ✅default In-Tree - correct answer ✅Plugins, components or functionality that are provided by default and/or reside in the main repository. (Internal plugins). Out-of-tree - correct answer ✅Plugins, components or functionality that must be installed manually, and extends or replaces the default behavior. (External plugins) Ednpoints - correct answer ✅Endpoints track the IP Addresses of the pods assigned to a Kubernetes Service. How to view a list of endpoints - correct answer ✅kubectl get endpoints Endpoint slices - correct answer ✅Endpoint Slices break up Endpoints into smaller manageable segments. Each Endpoint Slice has a limit of 100 pods. What breaks up Endpoints into smaller manageable segments? - correct answer ✅Endpoint Slices

(KCNA) 2025

Waht tracks the IP Addresses of the pods assigned to a Kubernetes Service? - correct answer ✅Endpoints Selectors - correct answer ✅1) labels

Command to show all labels - correct answer ✅kubectl get pods --show-labels Command to apply a lable - correct answer ✅kubectl label pods apache-web owner=devops What type of selector selects K8s objects based on object data? eg. Metadata, Status - correct answer ✅Field Selector What are Selectors - correct answer ✅Selectors are a way of selecting one or more Kubernetes Objects. What allows you to attach arbitrary non-identifying metadata to objects? - correct answer ✅Kubernetes annotations Command to directly deploy a POD - correct answer ✅kubectl apply -f ngnix.yaml (but not used in practice. Instead, you will use Deployment or Job as the kind)