Systems Security Certified Practitioner – SSCP – Question0698

In a hierarchical PKI the highest CA is regularly called Root CA, it is also referred to by which one of the following term?

A. Subordinate CA
B. Top Level CA
C. Big CA
D. Master CA

Correct Answer: B

Explanation:

Reference: Arsenault, Turner, Internet X.509 Public Key Infrastructure: Roadmap, Chapter “Terminology”.
Also note that sometimes other terms such as Certification Authority Anchor (CAA) might be used within some government organization, Top level CA is another common term to indicate the top level CA, Top Level Anchor could also be used.