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Microsoft DP-750 Exam Practice Questions and Answers

Question 1 of 83

DRAG DROP -
You have an Azure Databricks workspace that contains an all-purpose compute cluster named Cluster1. Cluser1 is used for interactive development.
You need to configure Cluster1 to meet the following requirements:
Automatically add and remove worker nodes based on workload demand.
Automatically shut down when the cluster has been idle for a specific period.
What should you configure for each requirement? To answer, drag the appropriate options to the correct requirements. Each option may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Exam dp-750: Image 1

Question 2 of 83

This is a case study. Case studies are not timed separately from other exam sections. You can use as much exam time as you would like to complete each case study. However, there might be additional case studies or other exam sections. Manage your time to ensure that you can complete all the exam sections in the time provided. Pay attention to the Exam Progress at the top of the screen so you have sufficient time to complete any exam sections that follow this case study.
To answer the case study questions, you will need to reference information that is provided in the case. Case studies and associated questions might contain exhibits or other resources that provide more information about the scenario described in the case. Information provided in an individual question does not apply to the other questions in the case study.
A Review Screen will appear at the end of this case study. From the Review Screen, you can review and change your answers before you move to the next exam section. After you leave this case study, you will NOT be able to return to it.

To start the case study -
To display the first question in this case study, select the “Next” button. To the left of the question, a menu provides links to information such as business requirements, the existing environment, and problem statements. Please read through all this information before answering any questions. When you are ready to answer a question, select the “Question” button to return to the question.

Overview -

Company Information -
Contoso, Inc. is a renewable energy provider that operates solar and wind farms across North America.

Existing Environment -

Azure Environment -
Contoso has a single Azure Databricks workspace named Workspace1 in the West US Azure region. Workspace1 is enabled for Unity Catalog.
Workspace1 contains all-purpose clusters for both development and production workloads.
The company's Azure environment contains:
In the West US, Central US, and East US Azure regions, Azure event hubs that stream telemetry data and an Azure Data Lake Storage Gen2 account in each region for each hub
A single Azure SQL database in the West US region that hosts enterprise resource planning (ERP) data
An Azure Database for PostgreSQL server in the West US region that stores operational maintenance data

Data Environment -
Contoso ingests the following operational and business data:
Telemetry data: More than 40,000 IoT sensors across 28 sites emit JSON telemetry events every few seconds. Each site sends the events to the nearest event hub, which writes the data into the corresponding Data Lake Storage Gen2 account. These files frequently experience schema drift.
Maintenance logs: Maintenance systems generate historical repair logs, daily incremental updates, technician notes, and unstructured attachments that are stored in the Data Lake Storage Gen2 accounts.
Operational maintenance data: Structured operational maintenance data is stored on the Azure Database for PostgreSQL server.
External weather data: Hourly weather forecasts are retrieved from a REST API and written to the Data Lake Storage Gen2 accounts.
ERP data: Daily CSV extracts of 50 to 100 GB contain equipment metadata, work orders, and purchase order information.

Problem Statements -
The company’s existing analytics environment has several issues:

Ingestion -
Telemetry pipelines fall behind during peak loads.
Telemetry ingestion fails when schema drift occurs.
Streaming pipelines reprocess events after a pipeline restarts.

Compute -
Production and development workloads run on the same all-purpose clusters.
Production and development workloads do NOT support autoscaling or workload isolation.

Governance -
The ERP data is duplicated across systems and development teams.
Naming conventions are inconsistent across development teams, regions, and products.
Ownership of the IoT sensors changes over time, and analysts must track the full history of the ownership.
Occasionally, equipment manufacturers must correct data-entry mistakes in equipment names. Historical values are NOT required.

Pipeline operations -
Pipelines lack resiliency, alerting, and centralized scheduling.

Requirements -

Planned Changes -
Contoso plans to implement the following changes:
Implement scalable data pipeline orchestration.
Create a managed analytics catalog in Unity Catalog.
Implement a consistent approach to creating curated datasets.
Establish a centralized governance model across ingestion, cleansed, and curated layers.
Grant data engineers access to the ERP tables by using minimal development effort.
Adopt a compute strategy that isolates production workloads and supports autoscaling.
Adopt a slowly changing dimension (SCD) approach to address current data modeling issues.

Technical Requirements -
Contoso identifies the following environment and compute requirements:
Ensure that production ingestion workloads run on compute clusters that can scale automatically during telemetry spikes.
Provide fast and consistent performance for business intelligence (BI) workloads.
Prevent development activity from affecting production pipelines.
Production ingestion workloads must run as scheduled, non-interactive pipelines rather than on shared interactive development clusters.
Contoso identifies the following data ingestion and processing requirements:
Auto-scale ingestion pipelines to handle bursty workloads.
Handle schema drift for the maintenance and telemetry data.
Ingest file-based telemetry data by using minimal operational effort.
Store all the ingested data in a format that supports incremental processing.
Support the continuous ingestion of telemetry data from the event hubs by using exactly-once semantics.
Support the ingestion of the structured maintenance data from the Azure Database for PostgreSQL server.
Build a new telemetry pipeline that ingests raw events from the event hubs, cleanses the data, and publishes curated tables to Unity Catalog.
Ensure that the Apache Spark Structured Streaming pipelines reading from the event hubs write the data into a managed Delta table named telemetry.raw_events. The pipelines must support schema drift and resume processing after failures without reprocessing the data.
Contoso identifies the following data modeling and optimization requirements:
Build curated tables that standardize business logic.
Overwrite equipment metadata attributes, such as name, manufacturer, model, and commissioning date, when the attributes change. Historical values are NOT required.
Contoso identifies the following pipeline deployment and operation requirements:
Orchestrate multi-step ingestion and transformation workflows.
Define a clear execution order and dependencies.
Automatically retry failed steps and notify operators.
Schedule ingestion and transformation workloads consistently.

Governance Requirements -
Contoso identifies the following governance requirements:
Centralize the metadata catalog.
Provide isolated development areas that follow standard naming conventions.
Establish a consistent structure for organizing raw, cleansed, and curated data.
Provide a read-only mechanism to reference the ERP data through a foreign catalog.

Business Requirements -
Contoso identifies the following business requirements:
Improve ingestion reliability and reduce operational effort.
Standardize data definitions across development teams.
You need to configure compute for the ingestion of telemetry data. The solution must meet the data ingestion and processing requirements.
What should you do?

A.

Move the ingestion pipelines to shared compute.

B.

Enable Photon acceleration for a job compute cluster.

C.

Increase an all-purpose cluster to a larger fixed node type.

D.

Disable autoscaling for a job compute cluster.

Question 3 of 83

You have an Azure Databricks workspace that is attached to a Unity Catalog metastore named metastore1, metastore1 contains a catalog named catalog1.
You need to create a new schema named schema2 that meets the following requirements:

Is contained in catalog1 -
Uses abfss://container@storageaccount.dfs.core.windows.net/data as the managed location
Which SQL statement should you execute?

A.

CREATE SCHEMA catalog1.schema2 -
LOCATION ‘abfss://container@storageaccount.dfs.core.windows.net/data’;

B.

CREATE SCHEMA catalog1.schema2 -
MANAGED LOCATION ‘abfss://container@storageaccount.dfs.core.windows.net/data’;

C.

CREATE CATALOG schema2 -
MANAGED LOCATION ‘abfss://container@storageaccount.dfs.core.windows.net/data’;

D.

CREATE SCHEMA catalog1.schema2 -
WITH DBPROPERTIES (LOCATION-’abfss://container@storageaccount.dfs.core.windows.net/data’);

Question 4 of 83

You have an Azure Databricks workspace.
You are creating a Lakeflow Spark Declarative Pipelines (SDP) pipeline that scales automatically.
You need to configure compute for the pipeline. The solution must minimize operational costs and effort.
What should you use?

A.

the existing SQL warehouse

B.

an all-purpose cluster that uses autoscaling

C.

a job cluster that uses autoscaling

D.

a single-node, all-purpose cluster

Question 5 of 83

You have an Azure Databricks workspace that contains an all-purpose cluster named Cluster1.
You need to configure Cluster1 to meet the following requirements:
Scale up automatically when workloads increase
Scale down automatically when workloads decrease

Minimize costs -
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A.

Disable Photon acceleration.

B.

Enable autoscaling for Cluster1.

C.

Apply a compute policy that enables users to manage the cluster settings.

D.

Specify a fixed number of workers.

E.

Configure Cluster1 to terminate after 30 minutes of inactivity.

Implementing Data Engineering Solutions Using Azure Databricks

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