The Flexcast Management Architecture (FMA) is fundamentally different from the older Independent Management Architecture (IMA). In FMA, principal services running on a Delivery Controller (such as the Broker Service, Host Service, and AD Identity Service) each establish and maintain their own direct connection to the Site Configuration database. This decentralized model enhances scalability and resilience.

Furthermore, the Configuration Logging and Monitoring databases can be hosted on a separate SQL Server instance from the Site database. When this is configured, the Configuration Logging Service on the Controller establishes its own, additional connection directly to this secondary database to write its data, independent of the connections to the primary Site database.

A. The Monitoring Service can be configured to use a separate database, to which it establishes its own dedicated connection.

B. The Configuration Logging service can be configured to use a separate database, to which it establishes its own dedicated connection.

D. This describes the legacy Independent Management Architecture (IMA), where services communicated through a central service (the IMA service) to the data store, not the current FMA.

1. Citrix Virtual Apps and Desktops 7 1912 LTSR Product Documentation, Reference > Databases. This document outlines the three databases used in a Site: Site Configuration, Configuration Logging, and Monitoring. It states, "By default, the configuration logging database is created on the same server as the site database... You can specify a different location..." This confirms that the database can be secondary, necessitating a separate connection.

2. Citrix Virtual Apps and Desktops 7 1912 LTSR Product Documentation, Install and configure > Create a Site. In the "Databases" step of the site creation wizard, the documentation shows distinct configuration sections for the Site, Monitoring, and Configuration Logging databases, allowing administrators to place them on different servers with separate credentials, which confirms the services make separate connections.

3. Citrix Tech Zone, Design Guidance > VDI Handbook > Architecture > FMA Services. Architectural diagrams and descriptions of the FMA services consistently show the core services on the Delivery Controller communicating directly with the Site Database, contrasting with the legacy IMA model. It details the role of services like the Broker Service, which "communicates with the site database to store configuration and session information."