Databricks Certified Data Engineer Professional Free Practice Exam Questions

164 real Databricks Certified Data Engineer Professional exam questions with answers and AI explanations. Databricks certification prep — page 12 of 17.

Question 152: A Spark job is taking longer than expected. Using the Spark UI, a data engineer notes that the Min, Median, and Max Durations for tasks in a particular stage s…
Question 153: A Delta Lake table representing metadata about content posts from users has the following schema: user_id LONG, post_text STRING, post_id STRING, longitude FLO…
Question 155: The business reporting team requires that data for their dashboards be updated every hour. The total processing time for the pipeline that extracts, transforms…
Question 156: The data science team has requested assistance in accelerating queries on free-form text from user reviews. The data is currently stored in Parquet with the be…
Question 157: A Delta lake table with CDF enabled table in the Lakehouse named customer_churn_params is used in churn prediction by the machine learning team. The table cont…
Question 159: Each configuration below is identical to the extent that each cluster has 400 GB total of RAM, 160 total cores and only one Executor per VM. Given an extremely…
Question 160: A data engineer is configuring a pipeline that will potentially see late-arriving, duplicate records. In addition to de-duplicating records within the batch, w…
Question 161: A data pipeline uses Structured Streaming to ingest data from Apache Kafka to Delta Lake. Data is being stored in a bronze table, and includes the Kafka-genera…
Question 162: The data engineering team is configuring environments for development, testing, and production before beginning migration on a new data pipeline. The team requ…
Question 163: The data architect has mandated that all tables in the Lakehouse should be configured as external Delta Lake tables. Which approach will ensure that this requi…