| Exam Name: | Databricks Certified Data Engineer Associate Exam | ||
| Exam Code: | Databricks-Certified-Data-Engineer-Associate Dumps | ||
| Vendor: | Databricks | Certification: | Databricks Certification |
| Questions: | 230 Q&A's | Shared By: | millie-mae |
An organization plans to share a large dataset stored in a Databricks workspace on AWS with a partner organization whose Databricks workspace is hosted on Azure. The data engineer wants to minimize data transfer costs while ensuring secure and efficient data sharing.
Which strategy will reduce data egress costs associated with cross-cloud data sharing?
A data engineer is reviewing the documentation on audit logs in Databricks for compliance purposes and needs to understand the format in which audit logs output events.
How are events formatted in Databricks audit logs?
A data engineer is joining a very large events_df DataFrame containing billions of rows with a small country_lookup_df DataFrame containing fewer than 10,000 rows. The DataFrames are joined on the country_code column. The join is slow because of data shuffling.
How should the data engineer improve performance?
A data engineer is cleaning a Bronze table. The requirement is to eliminate rows where either the customer_email field or the customer_phone field is NULL. The cleaning must be performed in one operation using a single method call.
Which PySpark approach supports filtering multiple columns for NULL values in one call?