Deploy Modern Applications in the Cloud CERTIFIED-HYBRID-CLOUD-IMPLEMENTATION-ENGINEER Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A team is using a CI/CD pipeline to deploy updates to a Kubernetes Deployment. They want to ensure that a new version of the application is deployed without any downtime. They also need to be able to quickly roll back to the previous version if the new version has a critical bug. Which deployment strategy should the team implement?

   • AA canary deployment where the new version is released to a small subset of users first
   • BA blue/green deployment where the new version is deployed and tested, then traffic is switched over
   • CA rolling update with a readiness probe and a defined revision history
   • DA recreate strategy that deletes all existing pods before creating new ones
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2. 12application · medium

   A development team wants to automate the deployment of their application to a Kubernetes cluster. They have a CI/CD pipeline that builds a container image and pushes it to a private registry. The next step is to automatically update the running application in the cluster. Which approach should the team use in their pipeline?

   • AUse kubectl to manually apply the updated manifest after the image is built
   • BHave the pipeline update the image tag in the Kubernetes manifest and use kubectl apply to deploy it
   • CRebuild the entire cluster from scratch with each new image
   • DSSH into the Kubernetes nodes and manually pull the new image and restart the containers
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4. 13foundation · easy

   To scale a deployment named `my-app` to 5 replicas, which kubectl command should be used?

   • Akubectl update deployment my-app --replicas=5
   • Bkubectl resize deployment my-app --replicas=5
   • Ckubectl set replicas deployment my-app --replicas=5
   • Dkubectl scale deployment my-app --replicas=5
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5. 14foundation · easy

   Which tool is commonly used for configuration management and automation, often to ensure servers are in a desired state?

   • ATerraform
   • BDocker
   • CAnsible
   • DKubernetes
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6. 15application · easy

   A team is deploying a containerized application to a Kubernetes cluster. The application needs to access a database with credentials that should not be hardcoded in the container image or the Kubernetes manifest. Which is the most secure method to provide these credentials to the application?

   • AEmbed the credentials directly in the container image during the build process
   • BPlace the credentials in a ConfigMap and reference it in the deployment manifest
   • CStore the credentials in a Kubernetes Secret and mount it as an environment variable in the pod
   • DHardcode the credentials in the application's source code
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