Company XYZ finds itself using more cloud-based business tools, and password management is becoming onerous. Security is important to the company; as a result, password replication and shared accounts are not acceptable. Which of the following implementations addresses the distributed login with centralized authentication and has wide compatibility among SaaS vendors?

Company XYZ finds itself using more cloud-based business tools, and password management is becoming onerous. Security is important to the company; as a result, password replication and shared accounts are not acceptable. Which of the following implementations addresses the distributed login with centralized authentication and has wide compatibility among SaaS vendors?
A . Establish a cloud-based authentication service that supports SAM
C . Implement a new Diameter authentication server with read-only attestation.
D . Install a read-only Active Directory server in the corporate DMZ for federation.
E . Allow external connections to the existing corporate RADIUS server.

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Answer: A