Google Cloud Professional Data Engineer PDE — Topic 1 Question 140

Question

You need to create a new transaction table in Cloud Spanner that stores product sales data. You are deciding what to use as a primary key. From a performance perspective, which strategy should you choose?

Accepted Answer

Correct answer: C. The correct answer is C. Option C: A random universally unique identifier number (version 4 UUID).

Google Cloud Professional Data Engineer PDE — Question 140