A CRL is comprised of.

A.
Malicious IP addresses.

B.
Trusted CA’s.

C.
Untrusted private keys.

D.
Public keys.

Explanation:
A certificate revocation list (CRL) is created and distributed to all CAs to revoke a certificate or key.
By checking the CRL you can check if a particular certificate has been revoked.
The certificates for which a CRL should be maintained are often X.509/public key certificates, as this
format is commonly used by PKI schemes.
Incorrect Answers:
A: The CRL contains certificates and keys, not IP addresses.B: Trusted CAs are not listed in the CRL.
C: Public keys, not private keys, might be included in the CRL.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 278-285, 279-280, 285