单项选择题

In base e-Commerce module designs， where should firewall perimeters be placed？（）

A. core layer
B. Internet boundary
C. aggregation layer
D. aggregation and core layers
E. access and aggregation layers

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CCDP(642-874)

In base e-Commerce module designs， where should firewall perimeters be placed？ （）

In base e-Commerce module designs， where should firewall perimeters be placed？（）