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GCP Professional Data Engineer Practice Question

Your company uses three analytics applications: a Java-based reporting server that needs a JDBC data source, a Windows modeling tool that supports only ODBC, and a serverless web dashboard that can invoke REST endpoints. You must give all three applications live access to a BigQuery dataset in Standard SQL, using a single service account and without writing custom connectors. Which approach meets the requirement with the least development effort?

  • Create a Cloud SQL for PostgreSQL replica of the BigQuery dataset with BigQuery Omni and point all three applications at the PostgreSQL endpoint through their existing JDBC or ODBC drivers.

  • Schedule nightly exports of the BigQuery tables to Cloud Storage as Avro files and let each application read the files through its file-based connectors.

  • Install Google's BigQuery JDBC driver for the Java server, the BigQuery ODBC driver for the Windows tool, and have the web dashboard call the BigQuery REST API; all three use the same service-account credentials to query BigQuery directly.

  • Use Dataflow to continuously stream BigQuery data into an on-premises MySQL database, then have every application connect to MySQL using its native JDBC or ODBC drivers.

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