Certificates are used for: (Select TWO).

A.
Client authentication.

B.
WEP encryption.

C.
Access control lists.

D.
Code signing.

E.
Password hashing.

Explanation:
Certificates are used in PKI to digitally sign data, information, files, email, code, etc. Certificates are also
used in PKI for client authentication.
Incorrect Answers:
B: Wired Equivalent Privacy (WEP) encryption is used with TKIP which placed a 128-bit wrapper around
the WEP encryption and is based on the MAC address of the host device and the serial number of the
packet.
C: Access control lists are used to allow individual and highly controllable access to resources in a
network.
E: Hashing refers to the hash algorithms used in cryptography. It is used to derive a key mathematically
from a message.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 156, 278, 281