What type of storage can be used to share data between containers?

Volumes and bind mounts are both storage types that facilitate data sharing between containers, which makes the answer encompassing both methods correct.

Volumes are managed by Docker and are stored in a part of the filesystem that is isolated from the container’s writable layer. This allows for data to be preserved even when containers are stopped or recreated, and it enables easy sharing of data among multiple containers. By using volumes, you can also take advantage of Docker's built-in features for managing data, such as volume backups, performance optimizations, and more straightforward sharing.

Bind mounts, on the other hand, allow you to link specific directories or files from the host system into a container. This method provides more direct access to the host filesystem, making it easy to share data between the host and the container or among containers, provided they are accessing the same host directory.

Both methods allow multiple containers to access and modify the same data, thus leading to consistency and shared state across your applications. Therefore, indicating that both volumes and bind mounts can be used for this purpose is accurate.