As a Cloud Architect, you are implementing an IoT solution where devices are expected to send data at unpredictable intervals. The data will be used for both real-time analytics and long-term storage. Which GCP service should be used for ingesting this type of data?

*Explanation: * _Cloud Pub/Sub._ Cloud Pub/Sub is the correct choice for ingesting data from IoT devices with unpredictable data arrival times. It is designed to handle data from a large number of publishers, like IoT devices, effectively managing data at unpredictable intervals. Cloud Dataflow is more suitable for data transformation and processing, not data ingestion. Cloud IoT Core is primarily a device management service and does not serve as a data ingestion service. Cloud Storage is not designed for real-time analytics, and Cloud Bigtable is not optimized for this use case.*