What are the three modules in the SAFE SMR midsize network design? (Choose three)

A.
Frame/ATM module

B.
Campus module

C.
ISP edge module

D.
Corporate Internet module

E.
WAN module

F.
PSTN module

Explanation:

The SAFE medium network design consists of three modules:
* The corporate Internet module
* The campus module
* The WAN module.
Reference: SAFE: Extending the Security Blueprint to Small, Midsize, and Remote-User Networks Page 14