Kubernetes for the Absolute Beginners - Hands-On - Demo – ReplicaSets

This video tutorial covers the creation and management of Kubernetes replica sets. It begins with setting up directories and YAML files, followed by configuring API versions, kinds, and metadata. The tutorial explains how to define replicas, templates, and labels, and demonstrates using kubectl to create and verify replica sets. It also covers managing pods within replica sets, ensuring availability, and scaling replica sets up and down.

What is the first step in setting up a replica set in Kubernetes?

• Creating a Docker image

• Setting up a YAML file

• Configuring a network policy

• Deploying a service

Which property in the YAML file specifies the number of pod replicas?

• replicas

• selector

• kind

• metadata

What is the purpose of the 'selector' field in a replica set YAML file?

• To match labels of pods

• To specify the number of replicas

• To set the kind of resource

• To define the API version

How can you ensure that the YAML file for a replica set is correctly formatted?

• All of the above

• By using a YAML linter

• By manually checking indentation

• By using an IDE extension

What command is used to create a replica set in Kubernetes?

• kubectl apply

• kubectl start

• kubectl create

• kubectl deploy

How does a replica set ensure the desired number of pods are running?

• By continuously monitoring and creating new pods if needed

• By using a cron job

• By using a load balancer

• By scaling up automatically during high traffic

What happens when a pod managed by a replica set is deleted?

• The replica set is deleted

• The remaining pods are scaled down

• The replica set ignores it

• A new pod is created automatically

What happens if you create a pod with the same labels as a replica set but outside of it?

• The replica set is scaled up

• The pod is added to the replica set

• The pod is terminated

• The pod is ignored

What command allows you to edit the running configuration of a replica set?

• kubectl change

• kubectl modify

• kubectl update

• kubectl edit

Which command is used to scale the number of replicas in a replica set?

• kubectl expand

• kubectl grow

• kubectl resize

• kubectl scale