What is the primary function of a Docker registry?

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The primary function of a Docker registry is to provide a central location for storing and distributing images. This capability is essential in the Docker ecosystem as it allows developers and DevOps teams to push, pull, and share container images easily across different environments. By storing images in a registry, users ensure that they can retrieve the images they need for building and deploying applications, maintaining version control of these images, and facilitating collaboration among team members.

A Docker registry acts as a repository where images can be stored in different tags, allowing different versions to coexist and be accessed as needed. This centralization simplifies the management of images and streamlines the process of deploying applications across various stages of development, testing, and production.

While deploying containers to production, monitoring performance, and managing networking are critical aspects of container management, they are not the primary functions of a Docker registry. The registry's main purpose is to handle the storage and distribution of container images, making option B the most accurate choice.

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