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Guide for Databricks Certified Data Engineer Associate Exam

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/ 10

Quiz

1/10
Delta Lake Fundamentals
Which component in Databricks is primarily responsible for storing and managing large-scale data in a reliable and scalable format?
Select the answer
1 correct answer
A.
Delta Lake
B.
MLflow
C.
Databricks SQL Editor
D.
Workspace Folders

Quiz

2/10
Data Ingestion
What is the main benefit of using Auto Loader in Databricks?
Select the answer
1 correct answer
A.
It replaces Delta Lake transaction logs
B.
It automatically tracks and processes new files incrementally
C.
It visualizes streaming metrics
D.
It encrypts data at rest

Quiz

3/10
Databricks SQL
Which command is used to create a managed table in Databricks using SQL?
Select the answer
1 correct answer
A.
CREATE EXTERNAL TABLE
B.
INSERT INTO TABLE
C.
CREATE TABLE table_name
D.
ATTACH TABLE

Quiz

4/10
Delta Lake Transactions
What feature of Delta Lake ensures atomicity and consistency during concurrent writes?
Select the answer
1 correct answer
A.
Schema inference
B.
Partition pruning
C.
Data skipping
D.
ACID transaction log

Quiz

5/10
Performance Optimization
Which operation is optimized by using ZORDER in Delta Lake?
Select the answer
1 correct answer
A.
Improving query performance by colocating related data
B.
Encrypting sensitive columns
C.
Creating streaming checkpoints
D.
Dropping unused partitions

Quiz

6/10
Delta Lake DML Operations
What is the purpose of the MERGE INTO statement in Delta Lake?
Select the answer
1 correct answer
A.
To delete a Delta table
B.
To upsert data into a target table based on a condition
C.
To convert Parquet files to CSV
D.
To cache a table in memory

Quiz

7/10
Delta Lake Storage
Which file format is the default storage format for Delta Lake tables?
Select the answer
1 correct answer
A.
CSV
B.
JSON
C.
Parquet
D.
Avro

Quiz

8/10
Structured Streaming
What is the primary function of checkpoints in Structured Streaming?
Select the answer
1 correct answer
A.
Store temporary query results
B.
Manage user authentication
C.
Track streaming query progress for fault tolerance
D.
Maintain state and enable recovery

Quiz

9/10
Delta Lake Maintenance
What does VACUUM do in Delta Lake?
Select the answer
1 correct answer
A.
Rewrites schema definitions
B.
Removes old files no longer referenced by the transaction log
C.
Restores previous table versions
D.
Creates new partitions

Quiz

10/10
Apache Spark Fundamentals
Which API is used for batch data processing in Databricks?
Select the answer
1 correct answer
A.
Structured Streaming API
B.
Delta Live Tables API
C.
Spark DataFrame API
D.
MLlib API
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  • Quiz name:Databricks Certified Data Engineer Associate Exam
  • Total number of questions:300
  • Number of questions for the test:50
  • Pass score:80%

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