DP-900 Azure Databricks 2

Question 1

What is the Azure Databricks workspace?

Accepted Answer

An environment that organizes notebooks, clusters, jobs, and data into a unified interface

Answer

A storage account for Databricks data

Answer

A dedicated Azure Virtual Network for Databricks

Answer

A database schema within Azure SQL

Question 2

Which feature of Delta Lake allows users to query data as it existed at a previous point in time?

Accepted Answer

Time travel

Answer

Data masking

Answer

Partitioning

Answer

Auto-clustering

Question 3

What is MLflow in the context of Azure Databricks?

Accepted Answer

An open-source platform for managing the machine learning lifecycle including experiments and model registry

Answer

A data pipeline orchestration tool

Answer

A SQL query optimizer

Answer

A real-time streaming analytics service

Question 4

How are Azure Databricks clusters billed?

Accepted Answer

Based on Databricks Units (DBUs) consumed during cluster operation

Answer

A flat monthly subscription regardless of usage

Answer

Per notebook cell executed

Answer

Based on the number of notebooks in the workspace

Question 5

What is a Databricks Job?

Accepted Answer

A scheduled or triggered execution of a notebook or JAR on a cluster

Answer

A SQL stored procedure in Azure SQL Database

Answer

A data migration task in Azure Data Factory

Answer

A background service running in Azure App Service

Question 6

Which two types of clusters does Azure Databricks offer?

Accepted Answer

All-purpose clusters and job clusters

Answer

Hot clusters and cold clusters

Answer

Shared clusters and private clusters

Answer

CPU clusters and GPU clusters

Question 7

What file format does Delta Lake use to physically store data?

Accepted Answer

Parquet

Answer

CSV

Answer

JSON

Answer

ORC