Google Cloud Professional Cloud Developer PCD — Topic 1 Question 220

Question

You work for an organization that manages an online ecommerce website. Your company plans to expand across the world; however, the estore currently serves one specific region. You need to select a SQL database and configure a schema that will scale as your organization grows. You want to create a table that stores all customer transactions and ensure that the customer (CustomerId) and the transaction (TransactionId) are unique. What should you do?

Accepted Answer

Correct answer: C. The correct answer is C. Option C: Create a Cloud Spanner table that has TransactionId and CustomerId configured as primary keys. Use a random string (UUID) for the TransactionId. Cloud Spanner is a horizontally scalable, strongly consistent relational database with global reach.

Google Cloud Professional Cloud Developer PCD — Question 220