Containerization CV0-004 Practice Questions (Page 6)

Questions 26–30

1. 26application · medium

   A security team is reviewing the deployment of a containerized application. They are concerned about the contents of the container images being used, as developers have been pulling images from public registries. They want to ensure that only approved and patched images are used in the production environment. What should they implement?

   • ARequire developers to manually review the source code of every public image before use.
   • BDisable all network access to public registries from the production environment.
   • CUse the latest tag for all images to ensure they are up to date.
   • DUse a private registry with image scanning and enforce that only images from this registry are deployed.
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2. 27expert · hard

   A company runs a containerized application in production. They want to deploy a new version of the application without any downtime. The application has multiple replicas running. Which deployment strategy should they use?

   • ARecreate strategy.
   • BCanary deployment.
   • CBlue/green deployment.
   • DRolling update.
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4. 28foundation · easy

   Which task is typically performed by a container orchestration tool?

   • AProviding a virtual machine for each container.
   • BCompiling application source code into a binary.
   • CScaling the number of container replicas based on demand.
   • DEncrypting data at rest in a cloud storage bucket.
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5. 29application · medium

   A startup has deployed a containerized web application on a single VM. As traffic grows, they manually create new VMs, install the container runtime, and start the containers. This process is error-prone and time-consuming. They want to automate the deployment, scaling, and management of their containers. Which solution should they implement?

   • AIncrease the resources of the single VM to handle more traffic.
   • BWrite a script that uses SSH to copy container images to each new VM.
   • CDeploy a container orchestrator like Kubernetes to manage the container lifecycle.
   • DUse a load balancer to distribute traffic to the existing VM only.
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6. 30application · medium

   A team is migrating a legacy application to containers. The application writes logs to a local file system and stores user session data in memory. During testing, they notice that when a container is restarted, the session data is lost. What is the most likely cause of this issue?

   • AThe container runtime is not configured to use a hypervisor.
   • BThe container image is too large and is being truncated on restart.
   • CThe container is not connected to the network, so it cannot persist data.
   • DThe container's writable layer is ephemeral and is destroyed when the container is removed.
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