In order to use a two-way trust model the security administrator MUST implement which of the
following?

A.
DAC

B.
PKI

C.
HTTPS

D.
TPM

Explanation:
PKI is a high level concept. Within a PKI you use a trust model to set up trust between Certification
Authorities (CAs).
A public key infrastructure (PKI) is a set of hardware, software, people, policies, and procedures
needed to create, manage, distribute, use, store, and revoke digital certificates.