Which of the following BEST represents a possible cause?

Posted by: Pdfprep Category: 220-902 Tags: , ,

An end user calls the company’s IT service desk to report an inability to open encrypted emails on a mobile device.

Which of the following BEST represents a possible cause?
A . A valid certificate suitable for S/MIME is not installed.
B . Emails received by the user lack suitable digital signatures.
C . SSL/TLS certificates stored on the device are expired.
D . The sender did not have the addressee’s public certificate.

Answer: A

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