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A multinational financial services company is undergoing a digital transformation to modernize its risk assessment models. They need to process petabytes of historical market data and real-time transaction feeds to identify complex patterns and predict potential financial risks with high accuracy. The solution must be highly scalable, cost-effective for large datasets, and integrate well with machine learning services. Which Google Cloud service is most appropriate for storing and analyzing this data?

  1. ACloud Spanner
  2. BCloud Storage
  3. CBigQuery
  4. DCloud SQL
Show answer & explanation

Correct answer: C. BigQuery

BigQuery is a serverless, highly scalable, and cost-effective enterprise data warehouse designed for petabyte-scale analytics. Its integration with machine learning (BigQuery ML) makes it ideal for complex risk assessment models requiring large datasets.

Why the other options are wrong

  • A. Cloud Spanner is a globally distributed, strongly consistent relational database, primarily for transactional workloads requiring global consistency, not a data warehouse for petabyte-scale analytics.
  • B. Cloud Storage is an object storage service, suitable for storing raw data but not for directly performing complex analytical queries on petabytes of data.
  • D. Cloud SQL is a relational database for transactional workloads, not optimized for petabyte-scale analytical queries.

BigQuery

Google Cloud's fully managed, serverless enterprise data warehouse that enables super-fast SQL queries using the processing power of Google's infrastructure.

  • Scales automatically to petabytes and beyond.
  • Optimized for analytical workloads, not transactional.
  • Offers BigQuery ML for in-database machine learning.

Memory trick: BigQuery queries big data, quickly and clearly.

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