What node contains the configuration and creation tasks for mailboxes, distribution groups, and contacts?

The recipient configuration node is the correct choice because it specifically serves as the location within the Microsoft Exchange Server management interface where you can manage all aspects related to recipient management. This includes tasks such as creating and configuring mailboxes, distribution groups, and contacts.

The recipient configuration node provides a centralized area to carry out these operations, making it an essential part of Exchange Server administration. It allows administrators to effectively manage users and their associated mail functionalities, ensuring proper organization and accessibility within an Exchange environment.

Other nodes serve different purposes. For instance, the mailbox settings node is focused specifically on settings related to individual mailboxes rather than the creation or broad management of users or groups. The organization configuration node deals with settings that affect the entire Exchange organization, such as server settings and policies. Lastly, the service configuration node is primarily concerned with service settings and performance, not with managing recipients directly.