Google Cloud Associate Cloud Engineer — Question 84

Your company uses BigQuery for data warehousing. Over time, many different business units in your company have created 1000+ datasets across hundreds of projects. Your CIO wants you to examine all datasets to find tables that contain an employee_ssn column. You want to minimize effort in performing this task.
What should you do?

Answer options

• A. Go to Data Catalog and search for employee_ssn in the search box.
• B. Write a shell script that uses the bq command line tool to loop through all the projects in your organization.
• C. Write a script that loops through all the projects in your organization and runs a query on INFORMATION_SCHEMA.COLUMNS view to find the employee_ssn column.
• D. Write a Cloud Dataflow job that loops through all the projects in your organization and runs a query on INFORMATION_SCHEMA.COLUMNS view to find employee_ssn column.

Correct answer: A

Explanation

The correct answer is A because using Data Catalog allows you to quickly search for specific columns across all datasets with minimal effort. Options B, C, and D require more complex scripting and additional resource management, which increases the workload unnecessarily for this task.