A. The deployment manager is a separate independent node that contains the master copy of the Websphere commerce application EAR file
B. The deployment manager basically is a node manager which manages multiple nodes. In this way, horizontal scalability can be achieved by adding new nodes to the architecture and configuring the node manager to manage the newly added nodes.
C. For each application server, a node agent is available. The node manager interacts with this node agent to monitor the node and propagate changes to keep the nodes in synch.
D. All the application servers in the architecture connect to a single Websphere Commerce Database.
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