The three architectures of TMN are ____________

A. Centralized architecture, decentralized architecture, and hierarchical architecture
B. Tiered architecture, peer-to-peer architecture, and client/server architecture

C. Security architecture, physical architecture, and logical layered architecture

D. Peer-to-peer architecture, security architecture, and centralized architecture.

Explanation: TMN architecture can be divided into three perspectives and those are Security architecture, Physical architecture, and Logical Layered architecture. Network management architecture consists of a Network Management system (NMS), Network Management protocol, Managed devices, Management agents and Management Information. Tiered architecture, Peer-to-peer architecture, and Client/Server architecture are the three types of Network architecture. Centralized architecture, Decentralized architecture, and Hierarchical architecture are architectures of Database Management System.