Exam Microsoft DP-750 Pass Guide | DP-750 Exam Reference

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Microsoft DP-750 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Secure and govern data using Unity Catalog15-20%- Data governance fundamentals
  • 1. Catalog, schema, and table management
    • 2. Data lineage and auditing
      - Access control and policies
      • 1. Tags and policy enforcement
        • 2. Attribute-based access control (ABAC)
          • 3. Row-level and column-level security
            Topic 2: Prepare and process data30-35%- Data transformation and modeling
            • 1. Delta Lake table design and SCD patterns
              • 2. SQL and PySpark transformations
                • 3. Joins, aggregations, and normalization/denormalization
                  - Data ingestion
                  • 1. Streaming ingestion using Spark Structured Streaming
                    • 2. Auto Loader and CDC ingestion patterns
                      • 3. Batch ingestion using COPY INTO and CTAS
                        - Data quality and validation
                        • 1. Pipeline expectations and data quality constraints
                          • 2. Schema enforcement and validation rules
                            • 3. Handling nulls, duplicates, and missing data
                              Topic 3: Deploy and manage data pipelines and workloads30-35%- Lakehouse architecture operations
                              • 1. Delta Lake optimization and clustering strategies
                                • 2. Delta Live Tables pipelines
                                  - Operational reliability
                                  • 1. Error handling and retries
                                    • 2. Monitoring and logging (Azure Monitor integration)
                                      - Pipeline design and orchestration
                                      • 1. Databricks Jobs and Workflows
                                        • 2. Notebook-based vs declarative pipelines
                                          Topic 4: Configure and manage Azure Databricks environments15-20%- Security and authentication setup
                                          • 1. Service principals and managed identities
                                            • 2. Azure Key Vault integration
                                              • 3. Access control for compute resources
                                                - Workspace and compute configuration
                                                • 1. Autoscaling, termination, and performance tuning
                                                  • 2. Cluster types and configuration (job, all-purpose, serverless)
                                                    • 3. Runtime, Spark, and Photon configuration

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                                                      Microsoft Implementing Data Engineering Solutions Using Azure Databricks Sample Questions (Q20-Q25):

                                                      NEW QUESTION # 20
                                                      Hotspot Question
                                                      You have an Azure Databricks workspace that is enabled for Unity Catalog.
                                                      You need to create an external volume named Volume1 in an existing schema. Volume1 must expose files from an Azure Storage container. The solution must meet the following requirements:
                                                      - Ensure that authentication does NOT require storing credentials in
                                                      Databricks.
                                                      - Ensure that users can access the files, but NOT modify the files.
                                                      - Follow the principle of least privilege.
                                                      Which type of authentication should you configure, and which permission should you grant to the users? To answer, select the appropriate options in the answer area.
                                                      NOTE: Each correct selection is worth one point.

                                                      Answer:

                                                      Explanation:


                                                      NEW QUESTION # 21
                                                      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?

                                                      Answer: C

                                                      Explanation:
                                                      The correct answer is A. Photon is Azure Databricks' native vectorized query engine, written in C++, designed to accelerate data ingestion and SQL-heavy workloads significantly over the standard Spark JVM path. Enabling it on a job compute cluster directly addresses Contoso's requirement for 'fast and consistent performance for BI workloads' and 'production ingestion workloads that can scale automatically during telemetry spikes.' Photon integrates transparently - no code changes are needed - and pairs well with autoscaling job clusters to handle the bursty 40,000-sensor telemetry load.
                                                      Option B contradicts the isolation requirement: Contoso explicitly needs production and development separated, not merged onto shared compute. Option C with a fixed large node gives peak capacity at all times, driving up costs even during quiet periods. Option D disabling autoscaling is the opposite of what's needed - telemetry spikes require elastic scaling, not a locked node count.
                                                      Reference: https://learn.microsoft.com/en-us/azure/databricks/compute/photon


                                                      NEW QUESTION # 22
                                                      What is the best way to reduce Databricks compute cost for intermittent workloads?

                                                      Answer: C

                                                      Explanation:
                                                      Autoscaling adjusts resources based on workload demand, and auto-termination shuts down idle clusters, reducing cost significantly. All-purpose clusters are always on. Increasing size raises cost. Single-node clusters limit scalability and are not suitable for production workloads.


                                                      NEW QUESTION # 23
                                                      You have an Azure Databticks workspace that is enabled for Unity Catalog and contains a catalog named catalog1.
                                                      You have a group named group!
                                                      You plan to create a schema named schema1 in catalog1.
                                                      You need to ensure that group1 meets the following requirements:
                                                      * Can create tables in schema1
                                                      * Can modify and query tables
                                                      * Cannot grant permissions for the schema and its objects
                                                      How should you complete the SQL statements? To answer, select the appropriate options in the answer area.
                                                      NOTE: Each correct selection is worth one point.

                                                      Answer:

                                                      Explanation:

                                                      Explanation:
                                                      The correct SQL grants group1 the ability to work within the schema without delegating that ability to anyone else:
                                                      GRANT USE SCHEMA ON schema1 TO group1 - required as a prerequisite to access any object inside the schema.
                                                      GRANT CREATE TABLE ON SCHEMA schema1 TO group1 - allows creating new tables.
                                                      GRANT SELECT, MODIFY ON SCHEMA schema1 TO group1 - SELECT for queries, MODIFY for INSERT/UPDATE/DELETE operations.
                                                      Crucially, MANAGE is NOT granted. In Unity Catalog, MANAGE is what allows a principal to grant and revoke privileges on the schema and its objects. Leaving it out means group1 can do all the data work but cannot redistribute those permissions - precisely what the requirement 'Cannot grant permissions for the schema and its objects' demands.
                                                      Reference: https://learn.microsoft.com/en-us/azure/databricks/data-governance/unity-catalog/manage- privileges/privileges


                                                      NEW QUESTION # 24
                                                      You have an Azure Databricks workspace named Workspace1. You create a compute cluster named Cluser1 that will be used to ingest data.
                                                      You need to install the required libraries on Cluster 1. The solution must use Unity Catalog for access control.
                                                      What should you do?

                                                      Answer: B

                                                      Explanation:
                                                      The correct answer is B. The %pip install command (or pip3 in a terminal context) creates an isolated, per- session library environment in notebooks, which is the Unity Catalog-compatible approach. Unity Catalog workspaces require cluster access mode set to 'Shared' or 'Single User,' and %pip installs work seamlessly within those modes without requiring cluster restarts.
                                                      Option A (custom dependency script) introduces extra maintenance work for every environment change - exactly what the question says to avoid. Option C installs libraries at the cluster level and requires a manual restart, which disrupts other users sharing the cluster and bypasses the per-notebook isolation model that Unity Catalog recommends. Option D uploads libraries to the Workspace file system (legacy DBFS approach), which is being deprecated in favour of Unity Catalog Volumes for library storage.
                                                      Reference: https://learn.microsoft.com/en-us/azure/databricks/libraries/notebooks-python-libraries


                                                      NEW QUESTION # 25
                                                      ......

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