Which group of transformers supports sharing and modifying data through a web service without having to build API calls directly?

• A. Connectors
• B. Overlayers
• C. Validators
• D. Removers

Answer: (A)

Connecting to external data sources, including web services, is what connectors are designed to do. They provide prebuilt interfaces that handle the details of talking to various data sources and APIs, so you don’t have to write API calls yourself. In a workflow, a connector takes care of the authentication, request formatting, and response parsing, letting you read from or write to a web service, and even modify data as it flows through the pipeline. This makes sharing data across systems and updating it via a web service straightforward and configuration‑driven, just by setting up the endpoint and parameters in the connector and chaining it with other transformers.

Other transformer groups serve different roles: overlayer transformers perform spatial operations like combining features from different layers, validators check data quality or conformance, and removers filter or delete features. They don’t provide the built‑in web service communication and API handling that connectors offer.