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DCA · Question #13

What is the purpose of a client bundle in the Universal Control Plane?

The correct answer is A. Authenticate a user using client certificates to the Universal Control Plane. A client bundle in Docker Universal Control Plane (UCP) contains TLS client certificates and keys, along with a pre-configured docker CLI, enabling secure user authentication and interaction with the UCP cluster.

Submitted by luis.pe· Apr 18, 2026Security

Question

What is the purpose of a client bundle in the Universal Control Plane?

Options

  • AAuthenticate a user using client certificates to the Universal Control Plane
  • BProvide a new user instructions for how to login to the Universal Control Plane
  • CProvide a user with a Docker client binary compatible with the Universal Control Plane
  • DGroup multiple users in a team in the Universal Control Plane

How the community answered

(56 responses)
  • A
    93% (52)
  • B
    2% (1)
  • C
    2% (1)
  • D
    4% (2)

Why each option

A client bundle in Docker Universal Control Plane (UCP) contains TLS client certificates and keys, along with a pre-configured `docker` CLI, enabling secure user authentication and interaction with the UCP cluster.

AAuthenticate a user using client certificates to the Universal Control PlaneCorrect

The client bundle, downloaded from UCP, includes client certificates, private keys, and CA certificates, which are used by the Docker CLI to establish a secure, authenticated connection to the UCP manager nodes, allowing users to perform Docker operations with their specific permissions.

BProvide a new user instructions for how to login to the Universal Control Plane

The client bundle facilitates authentication and connection, but it doesn't primarily provide login instructions; those are typically provided separately.

CProvide a user with a Docker client binary compatible with the Universal Control Plane

While the bundle might contain shell scripts to configure an existing Docker client, it does not provide the Docker client binary itself.

DGroup multiple users in a team in the Universal Control Plane

Grouping users into teams is a feature of UCP's access control and role-based access control (RBAC) system, not the primary purpose of a client bundle.

Concept tested: Docker UCP client bundle purpose

Source: https://docs.mirantis.com/msr/2.1/ucp/user-access/cli-access/download-client-bundle.html

Topics

#UCP Client Bundle#Client Certificates#Authentication#Access Control

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