What is a result of using external objects for data storage in Salesforce?

Using external objects for data storage in Salesforce primarily eliminates the need to keep data in sync because external objects are a way to connect Salesforce to data that exists in an external data source. This means that rather than duplicating the data within Salesforce, allowing for potential discrepancies and the added effort of regular synchronization, external objects allow users to reference the data directly from the external source using Salesforce's integration technologies such as Salesforce Connect.

This approach allows organizations to maintain a single source of truth outside of Salesforce, thereby reducing data redundancy and inconsistencies. As a result, when updates are made in the external data source, those changes are reflected in real-time within Salesforce, which simplifies data management and reduces the overhead typically associated with maintaining separate datasets in multiple locations.

The other options do not capture the primary benefit of using external objects as effectively. For instance, while it might seem that using external objects could complicate data retrieval processes—especially in relation to querying and data access—Salesforce's tools and frameworks are designed to streamline these processes. Similarly, external objects do not inherently increase storage requirements as they do not store data within Salesforce itself, and while they may affect performance depending on the scenario, they do not enhance the performance of saved updates directly.