A security administrator is trying to encrypt communication.
For which of the following reasons should administrator take advantage of the Subject Alternative Name (SAM) attribute of a certificate?
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A. B. C. D.B.
The Subject Alternative Name (SAN) attribute of a digital certificate is used to specify additional host names or domain names that the certificate should be valid for, in addition to the primary domain name listed in the Subject field. This attribute is useful in situations where a single certificate needs to cover multiple domains, such as in a load-balanced environment or when a website is accessible through multiple URLs.
So, the correct answer to the question is A) It can protect multiple domains.
Option B is incorrect because extended site validation is typically indicated by the use of an Extended Validation (EV) certificate, which involves a more rigorous verification process than a standard domain-validated (DV) certificate.
Option C is incorrect because all digital certificates require validation from a trusted certificate authority (CA) to ensure that the certificate is legitimate and issued to the correct entity.
Option D is also incorrect because while a certificate with SAN can cover multiple domains, it typically has a limit on the number of subdomains that can be included. This limit varies depending on the issuing CA and the type of certificate.