Knowledge quiz

It's time to put what you've learned to the test, get 8 right to pass this unit.

Which of the following statements is true about CronJobs in Kubernetes?

Choose the correct answer.

CronJobs are used to run a workload periodically.

CronJobs are used to run a workload once and then terminate.

CronJobs are used to run a workload on a subset of nodes in your cluster.

CronJobs are used to create a ReplicaSet.

What is the difference between horizontal and vertical scaling?

Choose the correct answer.

Horizontal scaling increases the number of pods, while vertical scaling increases the resources of a Pod.

Horizontal scaling increases the resources of a pod, while vertical scaling increases the number of Pods

Which of the following is true about the RollingUpdate deployment strategy?

There are two correct answers.

It is the default deployment strategy.

It can be used to update your application without downtime.

It can be used to update your application with downtime.

It deletes the old pods before creating the new ones.

Which command to use to perform a dry-run of your Helm chart to check if it is valid?

Choose the correct answer.

helm test

helm install

helm template

Which workload type is most suitable for a stateless workload, such as a common microservice?

Choose the correct answer.

Pod

ReplicaSet

Deployment

StatefulSet

DaemonSet

What are Horizontal Pod Autoscalers (HPA) used for?

Choose the correct answer.

To scale a Deployment vertically.

To scale a Deployment horizontally.

What are Serverless Functions in project "Kyma"?

Choose the correct answer.

A Kubernetes built-in resource

A Kubernetes custom resource (CR)

When would you choose a DaemonSet?

Choose the correct answer.

When you want to run a stateful workload.

When you want to run a stateless workload.

When you want to run a workload on every node in the cluster.

When you want to run a workload randomly on a node in the cluster.

How can you specify on which nodes a DaemonSet should run?

Choose the correct answer.

By specifying a node selector in the DaemonSet manifest.

By specifying a node selector in the pod template of the DaemonSet manifest.

By specifying a node selector in the DaemonSet controller.

By specifying a node selector in the DaemonSet controller and in the pod template of the DaemonSet manifest.

10.

How can Serverless Functions be invoked?

There are two correct answers.

By an HTTP request

By an event

By a cron job

By a Kubernetes job