One of the administrators of a cloud service provider has been asked to assist one of its newest customers to deploy a multi-tier application (web, application, and
database). The architecture design does not specify where each service should reside and the customer is asking for a recommendation. Which of the following
should be recommended?
A. Application server should be placed in the DMZ
B. Database server should be placed in the DMZ
C. DMZ are only used for single-tier infrastructure
D. Web server should be placed in the DMZ