Hard1 markMultiple Choice
This question is part of a case study — click to read the full scenario(Case 11)

CASE STUDY: AutoMakers Inc. 1M connected cars, 100GB/day telemetry. Req: Predictive maintenance, real-time driver dashboard, monetize data. CEO: Data is new engine. CFO: Cut 3rd-party IoT costs. CTO: Highly scalable ingest. Tech: MQTT ingest, stream processing, ML models, 7-yr cold storage, handle intermittent connectivity. Constraints: Anonymize data, low vehicle compute, strict analytics budget.

How should you architect the highly scalable ingestion layer for MQTT telemetry data from 1 million cars?

GCP PCA · Question 12 · Domain 2: Managing and Provisioning a Solution Infrastructure

CASE STUDY: AutoMakers Inc. 1M connected cars, 100GB/day telemetry. Req: Predictive maintenance, real-time driver dashboard, monetize data. CEO: Data is new engine. CFO: Cut 3rd-party IoT costs. CTO: Highly scalable ingest. Tech: MQTT ingest, stream processing, ML models, 7-yr cold storage, handle intermittent connectivity. Constraints: Anonymize data, low vehicle compute, strict analytics budget.

To meet the 7-year cold storage requirement while adhering to the strict analytics budget, how should you configure storage?

Answer options:

A.

Keep all 7 years of data in BigQuery active storage.

B.

Export older BigQuery data to Cloud Storage Archive class using lifecycle policies.

C.

Store all data in Cloud Storage Standard class.

D.

Use Persistent Disk Snapshots for long-term retention.

How to approach this question

Identify the most cost-effective storage class for 7-year retention.

Full Answer

B.Export older BigQuery data to Cloud Storage Archive class using lifecycle policies.✓ Correct
Export older BigQuery data to Cloud Storage Archive class using lifecycle policies.
Cloud Storage Archive class offers the lowest storage cost, perfect for 7-year compliance retention where data is rarely accessed.

Common mistakes

Keeping data in BigQuery or using Standard storage.

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