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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Deploy and maintain data pipelines and workloads | 30-35% | - Manage production workloads
|
| Topic 2: Prepare and process data | 30-35% | - Ingest and transform data
|
| Topic 3: Set up and configure an Azure Databricks environment | 15-20% | - Create and configure Azure Databricks workspaces
|
| Topic 4: Secure and govern Unity Catalog objects | 15-20% | - Implement governance and security
|
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NEW QUESTION # 19
You have an Azure Databricks workspace named Workspace1 that contains a Git folder linked to a remote Git repository. The Git folder contains a Databricks notebook named Notebook1.
From the main branch, you create a feature branch named Branch1 and commit changes to Notebook1.
Another user commits changes to Notebook1 in main.
When you attempt to merge Branch1 into main, a merge conflict occurs.
You need to ensure that Notebook1 in main includes the changes from both branches.
What should you do?
Answer: D
Explanation:
Branch1 must first incorporate the current changes from main. During that merge, the conflicting sections of Notebook1 can be reviewed and resolved so that the resulting feature-branch version contains the required work from both branches. After committing the resolution, Branch1 can be merged into main normally.
Cloning either branch into another Git folder creates another working copy but does not resolve the conflicting histories. Applying changes directly to main bypasses the controlled feature-branch workflow and risks omitting or overwriting one contributor's work. Resolving the conflict on Branch1 also allows the combined notebook to be tested before updating the shared main branch. Therefore, merging main into Branch1, resolving the conflict, and completing the final merge is the correct workflow.
NEW QUESTION # 20
You have an Azure Databricks workspace that uses Unity Catalog.
You have a Lakeflow Spark Declarative Pipelines (SDP) pipeline that ingests data into a managed Delta table named Table1. Table1 is used for analytics.
New columns are added to the source data, causing pipeline failures during writes to Table1.
You need to prevent the pipeline failures. The solution must ensure that schema changes are detected and handled.
What should you do?
Answer: C
Explanation:
Schema evolution allows the target Delta table to incorporate compatible new source columns instead of failing when the incoming schema changes. This is the appropriate response to additive schema drift and avoids manually rebuilding tables whenever the source evolves. Creating a separate table for every schema version would fragment the dataset and increase operational effort. Disabling schema enforcement removes valuable protection against incompatible or corrupt data rather than handling legitimate evolution safely. Row filters operate on records and cannot remove an unexpected column from the incoming schema. With schema evolution enabled, the pipeline can detect new fields, update the target schema, and continue processing while retaining Delta Lake's transactional guarantees. The solution therefore supports changing source data without sacrificing the managed-table architecture.
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: A
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
You have an Azure Databricks workspace that is enabled for Unity Catalog and contains two managed Delta tables named sales.schema1.table1 and sales.schema1.table2.
sales.schema1.table1 contains sales data from the current year.
sales.schema1 .table2 contains historical data.
You need to load all the rows from sales.schema1.table1 into sales.schema1.table2. The solution must preserve any existing data in sales.schema1.table2 and minimize processing effort.
Which command should you run?
Answer: D
Explanation:
To load all rows from one table into the other while preserving existing data and minimizing processing effort, you should use the SQL INSERT INTO statement.
Preserves Data: INSERT INTO appends new rows to the target table without modifying or deleting the existing data.
Lowest Processing Effort: It performs a direct data append at the storage level. Unlike MERGE INTO, it does not scan the target table for matches, saving significant compute time and costs.
Delta Lake Optimization: Because these are Delta tables, appending data simply writes new parquet files and commits them to the transaction log, making the operation fast and efficient.
Reference:
https://medium.com/@gema.correa/handling-schema-evolution-and-schema-compensation-in-databricks-lessons-from-the-field-7af8d915beef
NEW QUESTION # 23
You have an Azure Databricks workspace that uses serverless compute.
You need to ingest data by using Lakeflow Jobs. New records must be processed as soon as they become available.
Which type of job trigger should you use for the ingestion?
Answer: B
Explanation:
The correct answer is D - Continuous trigger.
A Continuous trigger keeps the job running as a perpetual loop. As soon as one micro-batch or iteration completes, the next begins. New records are picked up with the shortest possible latency - as close to real- time as a Lakeflow Jobs pipeline gets.
File Arrival (Option B) is event-driven but introduces per-file trigger overhead and is best suited for file-based ingestion rather than continuous streaming workloads. Scheduled (Option C) runs at fixed clock intervals - if new data arrives between runs, it waits until the next scheduled execution. Manual (Option A) requires a human to start each run.
The question specifies serverless compute, which pairs naturally with Continuous trigger because serverless handles cluster lifecycle automatically - the job stays active without managing a persistent cluster. 'New records must be processed as soon as they become available' is the exact use case the Continuous trigger is designed for.
Reference: https://learn.microsoft.com/en-us/azure/databricks/jobs/triggers
NEW QUESTION # 24
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