Which term enables communication between applications and supports various protocols?

• A. Content Management System
• B. Enterprise Service Bus
• C. Directory Services
• D. Data Creation

Answer: (B)

This item tests how applications connect and exchange information across different protocols. An Enterprise Service Bus serves as a central communication backbone that links diverse applications. It provides protocol bridging through adapters, transforming messages into formats each app can understand and routing them to the right service. It also enables decoupling so applications can evolve independently, while handling security, reliability, and orchestration across the integration layer. For example, an order system can talk to inventory and billing via the bus, even if each system uses HTTP, JMS, or FTP in the background. Content management systems focus on storing and delivering digital content, directory services manage user identities and access, and data creation is not about enabling cross-application communication. Therefore, the term that enables communication between applications and supports various protocols is the Enterprise Service Bus.