Crucial Exams

GCP Professional Data Engineer Practice Question

A healthcare provider runs a regional pipeline that exports HL7v2 messages to Pub/Sub, processes them in near-real time with Dataflow Streaming Engine, writes temporary files to a Cloud Storage bucket, and loads curated records into BigQuery. New compliance policy demands every persisted copy of the data-including transient shuffle or Streaming Engine state-be encrypted at rest with a customer-managed Cloud KMS key that security rotates. The team wants the simplest design that meets the rule. What should you recommend?

  • Keep the existing Dataflow job but add the --kmsKey flag and use a CMEK-protected Cloud Storage bucket for staging and temporary data.

  • Enable CMEK on the BigQuery dataset and configure Pub/Sub with a customer-managed key; rely on Dataflow's default at-rest encryption.

  • Re-implement the streaming transformation on a Dataproc cluster whose VM boot disks and all HDFS or Cloud Storage paths use the organization's CMEK.

  • Run the Dataflow job inside a VPC Service Controls perimeter and ensure TLS is used for Pub/Sub and BigQuery connections without changing at-rest encryption.

GCP Professional Data Engineer
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