Containerization CV0-004 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A company runs a monolithic e-commerce application on a fleet of virtual machines. The platform team wants to improve resource utilization and deployment speed without changing the application's underlying code. They plan to package the application and its dependencies into a single deployable unit. Which approach best meets these requirements?

   • ADeploy the application to a new VM for each user session to isolate workloads.
   • BRefactor the application into a serverless function that runs on every HTTP request.
   • CContinue running the application on VMs but increase the CPU and memory allocation for each instance.
   • DMigrate the application to a containerized workload and manage it with an orchestrator.
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2. 22foundation · easy

   Which statement best describes containerization?

   • AA technique for emulating an entire computer system, including its own operating system, on a host.
   • BA method of partitioning a physical server into multiple independent servers, each with its own operating system.
   • CA method of running applications in isolated user-space instances that share the host operating system kernel.
   • DA way to package an application with its dependencies into a single executable that runs directly on the hardware.
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4. 23foundation · easy

   Which scenario is a common use case for containerization?

   • AHosting a legacy application that requires direct access to physical hardware.
   • BDeploying microservices that need to be scaled independently.
   • CProviding a full desktop environment for end users.
   • DRunning a monolithic application that requires a specific version of an operating system.
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5. 24expert · hard

   A company is migrating a legacy application to containers. The application is stateful and requires persistent storage. The team is using a container orchestrator. They are concerned about data loss if a container is rescheduled to another node. Which solution should they implement to ensure data persists across container restarts and node failures?

   • AUse persistent volumes with a storage class that supports dynamic provisioning and is backed by network-attached storage.
   • BUse a local volume on each node and rely on the orchestrator to copy data between nodes.
   • CStore all application data in the container's writable layer.
   • DDisable container rescheduling to keep the container on the same node.
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6. 25foundation · easy

   Which statement accurately contrasts containers and virtual machines?

   • AVirtual machines provide hardware-level isolation, while containers provide process-level isolation.
   • BContainers include a guest operating system, while virtual machines do not.
   • CVirtual machines start faster than containers.
   • DContainers can run any operating system regardless of the host.
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