What attribute is included in a X-509-certificate?

A.
Distinguished name of the subject

B.
Telephone number of the department

C.
Secret key of the issuing CA

D.
The key pair of the certificate holder

Explanation:
“Certificates that conform to X.509 contain the following data: Version of X.509 to which the
certificate conforms Serial number Signature algorithm identifier Issuer name Validity period
Subject’s name (contains the distinguished name, or DN of the entity that owns the public key
contained in the certificate) Subjects Public Key” Pg. 297 Tittel: CISSP Study Guide