Databricks Engineer Associate Practice Exam Questions with Verified Solutions

Databricks Engineer Associate Practice Exam Questions with Verified Solutions Which of the following describes a benefit of a data lakehouse that is unavailable in a traditional data warehouse? A data lakehouse enables both batch and streaming analytics Which of the following locations hosts the driver and worker nodes of a Databricks-managed cluster? Data plane A data architect is designing a data model that works for both video-based machine learning workloads and highly audited batch ETL/ELT workloads. Which of the following describes how using a data lakehouse can help the data architect meet the needs of both workloads? A data lakehouse stores unstructured data and is ACID-compliant. Which of the following describes a scenario in which a data engineer will want to use a Job cluster instead of an all-purpose cluster? An automated workflow needs to be run every 30 minutes A data engineer has created a Delta table as part of a data pipeline. Downstream data analysts now need SELECT permission on the Delta table. Assuming the data engineer is the Delta table owner, which part of the Databricks Lakehouse Platform can the data engineer use to grant the data analysts the appropriate access? Data Explorer Two junior data engineers are authoring separate parts of a single data pipeline notebook. They are working on separate Git branches so they can pair program on the same notebook simultaneously. A senior data engineer experienced in Databricks suggests there is a better alternative for this type of collaboration. Which of the following supports the senior data engineer's claim? Databricks Notebooks support real-time coauthoring on a single notebook Which of the following describes how Databricks Repos can help facilitate CI/CD workflows on the Databricks Lakehouse Platform? Databricks Repos can commit or push code changes to trigger a CI/CD process Which of the following statements describes Delta Lake? Delta Lake is an open format storage layer that delivers reliability, security, and performance. Which of the following SQL keywords can be used to append new rows to an existing Delta table? UNION A data engineering team needs to query a Delta table to extract rows that all meet the same condition. However, the team has noticed that the query is running slowly. The team has already tuned the size of the data files. Upon investigating, the team has concluded that the rows meeting the condition are sparsely located throughout each of the data files. Based on the scenario, which of the following optimization techniques could speed up the query? Z-Ordering A data engineer needs to create a database called customer360 at the location /customer/customer360. The data engineer is unsure if one of their colleagues has already created the database. Which of the following commands should the data engineer run to complete this task? CREATE DATABASE IF NOT EXISTS customer360 LOCATION '/customer/customer360'; A junior data engineer needs to create a Spark SQL table my_table for which Spark manages both the data and the metadata. The metadata and data should also be stored in the Databricks Filesystem (DBFS). Which of the following commands should a senior data engineer share with the junior data engineer to complete this task? CREATE TABLE my_table (id STRING, value STRING); A data engineer wants to create a relational object by pulling data from two tables. The relational object must be used by other data engineers in other sessions. In order to save on storage costs, the data engineer wants to avoid copying and storing physical data. Which of the following relational objects