Which action must be taken to secure a device after revoking its Device Trust certificate?

To secure a device after revoking its Device Trust certificate, the appropriate action is to remove any existing certificate and re-enroll the device. When a Device Trust certificate is revoked, it essentially means that the device no longer meets the security requirements set by the organization; therefore, it could potentially be a security risk.

By removing the existing certificate, you eliminate any previous trust that was extended to that device. Re-enrolling the device grants an opportunity to apply updated security measures, install a new certificate, and confirm that the device now meets the current compliance requirements. This action helps ensure the device is properly secured and can be trusted to access sensitive organizational resources again.

The other options do not effectively address the need to renew trust in the device. Generating a new password does not resolve the certification issue. Disabling multi-factor authentication weakens security rather than enhancing it, and changing the user’s profile settings won’t necessarily secure the device in question. Thus, the chosen action of removing any existing certificate and re-enrolling is the most effective approach to ensuring that the device is secure and compliant after a certificate has been revoked.