Which of the following options does not belong Agile Controller-Campus Security domain?

Security zone division means to better protect the internal network security, Based on the business type and security requirements of the intranet, divide the intranet into several granularities.

Logical area .

Which of the following options does not belong Agile Controller-Campus Security domain?
A . User domain
B. Network domain
C. Business domain:
D. Attack domain

Answer: D