Differentiate Between VMs and Containers to Select the Appropriate Compute Model VCAP-VCF-VKS Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   A company is deploying a new application that consists of multiple microservices. The application must scale quickly in response to demand and minimize resource usage. Which compute model should be selected?

   • AContainers, because they provide fast startup, low overhead, and high density for microservices.
   • BContainers, because they include a full guest OS for each microservice.
   • CVMs, because they can start in seconds and provide high density.
   • DVMs, because they provide stronger isolation and are more secure for microservices.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which workload characteristic would make a VM a more suitable choice than a container?

   • AThe application is a microservice that needs to start quickly and use minimal resources.
   • BThe application is a simple utility that runs for a short time and then exits.
   • CThe application requires a specific operating system kernel version that is not available on the host.
   • DThe application is a stateless web service that needs to scale horizontally.
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   Which statement best describes a core characteristic of a virtual machine (VM)?

   • AA VM runs on a hypervisor that emulates hardware, allowing multiple VMs to share the same physical host while each runs its own guest OS.
   • BA VM is a lightweight package that includes only the application and its dependencies, without a guest OS.
   • CA VM shares the host operating system kernel and runs as an isolated user-space process.
   • DA VM runs directly on physical hardware without any hypervisor or abstraction layer.
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   A company runs a legacy application that was written for Windows Server 2012 and requires a specific Windows feature that is not available in newer versions. The application is monolithic and must run on a single instance. The company wants to move this application to a new VMware cluster with minimal changes to the application. Which approach is most appropriate?

   • ARefactor the application to run on Linux containers.
   • BRun the application in a container with a Windows Server 2012 base image.
   • CCreate a VM with Windows Server 2012 and migrate the application to it.
   • DContainerize the application using Windows containers and run it on a Windows Server 2019 host.
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   Which statement best describes a core characteristic of containers?

   • AContainers use OS-level virtualization, sharing the host kernel while isolating the application and its dependencies.
   • BContainers are tied to a specific hypervisor and cannot run on bare-metal servers.
   • CContainers virtualize hardware, allowing multiple operating systems to run on a single physical server.
   • DContainers each include a full guest operating system and require a hypervisor to run.
   Reveal Solution Discussion Select an answer first