Which of the following data operations can you perform with SDA?

Choosing data federation as the correct answer highlights an important capability of SAP HANA's Smart Data Access (SDA). Data federation allows users to access and query data stored across various sources as if it were part of a single database. This means that rather than moving data from multiple locations into a central repository, SDA can integrate and present data from disparate sources in real time without the need for physical storage.

The efficiency and flexibility offered by data federation make it a powerful feature for organizations that require real-time insights and analytics without the overhead of maintaining a physical data warehouse. Data federation enhances decision-making processes by allowing users to work with up-to-date information across various platforms seamlessly.

In contrast, while real-time replication, physical data warehouse, and logical data warehouse involve data storage and management strategies, they do not pertain directly to the capabilities provided specifically by SDA for data federation. Real-time replication focuses on copying data to ensure that different systems remain synchronized. A physical data warehouse refers to an actual consolidated database that stores data from multiple sources. Meanwhile, a logical data warehouse involves virtualized data access without necessitating centralized physical storage. Understanding this context illustrates the unique role that data federation plays in the SDA framework.