DataQuirk is a web-based medical transcription company for exotic-animal veterinarians. The company recently added a third ISP for international business. They are organizing the enterprise network into a fully operational Enterprise Edge.

To which two modules will the three ISPs be directly related (Choose two)

A.
PSTN

B.
E-commerce

C.
WAN/MAN

D.
Edge Distribution

E.
internet Connectivity

F.
Remote Access VPN

Explanation:
The purpose of ISP link is for serving customers & it is also providing internet connectivity to internal & external users, thus it falls into above 2 categories.
Link: http://leaman.org/ccna4/Chap_1.pdf