701-200: Linux Professional Institute DevOps Tools EngineerDemo

By LPI · Question Mode

QuestionQ19

702.1 Application Container Management

Where should containerized applications keep persistent data, such as user-uploaded files or billing information?

Choose two
  • A In files inside the container that are exclusively locked by the application.
  • B In memory with an API to download a serialized dump of the data.
  • C In external systems such as databases or object stores.
  • D In dedicated, well known directory trees within the container.
  • E In a database server which is installed within the application container.
Explanation

Persistent data should be stored outside a container’s ephemeral writable layer, such as in external databases or object stores, and mounted into the application at dedicated, well-known directory paths when filesystem access is needed. Docker documents that container-layer data is removed with the container and that volume or bind mounts persist data independently of the container lifecycle.

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