A management team is concerned about enterprise devices that do not have any controls in place. Which of the following should an administrator implement to address this concern?

MDM (Mobile Device Management) is designed to manage, secure, and enforce policies on various devices within an enterprise, including laptops, smartphones, and tablets, directly addressing the concern of devices without any controls.

MFA (Multi-Factor Authentication) is an identity and access control mechanism that adds security to user logins but does not directly implement controls over the device itself.

A VPN (Virtual Private Network) provides secure remote access to a private network over a public network but does not offer comprehensive management or control over the enterprise devices themselves.

SSL (Secure Sockets Layer), now largely superseded by TLS, is a cryptographic protocol for securing communication over a computer network and is not a system for managing or controlling devices.