What techniques should an architect consider to query and download all Account records updated in the last 24 hours?

Choosing to leverage the Salesforce Data Replication API's getUpdated() operation is the most effective method for retrieving Account records modified in the last 24 hours. The Data Replication API is specifically designed to facilitate data extraction processes, and the getUpdated() operation allows architects to retrieve information about records that have changed since a given timestamp.

This operation is particularly advantageous as it is optimized for performance in environments where large data volumes are involved and is specifically tailored for these types of queries, providing a straightforward way to keep track of record updates within a defined timeframe. By using this technique, an architect can efficiently pull all necessary changes, ensuring that they have the most up-to-date data without needing advanced setups or ongoing polling mechanisms.

Other techniques, while they may have their merits in specific scenarios, do not match the efficiency and purpose of the Data Replication API for this particular task. For example, a time-based workflow action would require additional configuration and may not cover all records dynamically, whereas using third-party ETL tools can introduce additional complexity and delay due to their reliance on SOQL that might not be as optimized for recent updates. The Enterprise WSDL's getUpdated() operation is also a viable method, but the Data Replication API is specifically built for