You are configuring your Internet-accessible Client Access servers to provide Outlook Web App,
Outlook Anywhere, and Autodiscover services. You need to obtain the fewest number of certificates
to secure the clients’ connection to these servers. According to the recommended practice, which
type of certificate will you need to obtain to provide trusted secure access to both domain-joined
and non-domain-joined devices?

A.
Enterprise CA certificate

B.
User certificate

C.
Trusted third-party UCC certificate

D.
Trusted third-party certificate

Explanation:

A trusted third-party UCC certificate will handle multiple services and provide compatibility with
non-domain-joined devices.