Crucial Exams

GCP Professional Data Engineer Practice Question

Your company is building a new data pipeline on Google Cloud that ingests HL7 messages from its on-premises hospital network over Dedicated Interconnect into Pub/Sub, processes them with Dataflow, and writes curated data to BigQuery. The compliance team mandates that no pipeline component be reachable from, or initiate traffic to, the public internet, and it wants guardrails that prevent accidental data exfiltration to other projects. You must propose a solution that requires the least ongoing operational work. Which networking approach best meets these requirements?

  • Place Dataflow workers in a subnet behind Cloud NAT while keeping external IPs enabled, rely on ingress-blocking firewall rules, and trust that traffic over Cloud Interconnect satisfies the no-internet requirement.

  • Deploy the pipeline in the default VPC with public IPs and restrict access through Identity-Aware Proxy; protect BigQuery data with customer-managed encryption keys for compliance.

  • Expose Pub/Sub and BigQuery via Private Service Connect endpoints but allow Dataflow workers to retain external IPs, adding an egress firewall rule that blocks all destinations except Google APIs.

  • Use a Shared VPC with only private subnets, create Dataflow workers without external IPs, enable Private Google Access, and define a VPC Service Controls perimeter that includes Pub/Sub, Dataflow, Cloud Storage, BigQuery, and Cloud Composer.

GCP Professional Data Engineer
Ingesting and processing the data
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