DP-700 Ingest and Transform Data Practice Question
When writing data to a Lakehouse table using a Spark Notebook in Microsoft Fabric, which optimization is enabled by default to ensure maximum compatibility and performance across all Fabric engines?
⚠ Common exam trap
Candidates often guess 'Z-Ordering' or 'Partitioning'. While these are performance optimizations, they are not enabled automatically by default; V-Order is the proprietary Fabric feature enabled by default for all writes.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
V-Order.
V-Order is a proprietary optimization in Microsoft Fabric that enhances the Parquet file format used by Delta Lake. It is enabled by default for all write operations in Fabric to ensure that data is stored in a way that is highly optimized for the platform's diverse compute engines.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Z-Order indexing.
Why it's wrong here
Z-Order is a data skipping technique used in Delta Lake to improve query performance by co-locating related information. While available in Fabric, it is not a default setting for every write operation and must be explicitly called via the OPTIMIZE command by the user.
- ✗
Bloom Filters.
Why it's wrong here
Bloom Filters are data structures used to quickly determine if a value exists in a file. In Fabric and Spark, Bloom Filters are optional indexes that must be manually configured for specific columns and are not applied by default to all table write operations.
- ✓
V-Order.
Why this is correct
V-Order is the default write optimization in Fabric. It applies specialized sorting and compression logic to Parquet files, making them 'engine-ready' so that the SQL Analytics Endpoint, Power BI, and Spark can read the data with significantly higher efficiency and performance.
- ✗
GZIP Compression.
Why it's wrong here
While GZIP is a standard compression algorithm, Parquet files typically use Snappy compression by default due to its balance of speed and compression ratio. V-Order is the specific Fabric-level optimization that goes beyond standard compression to improve overall platform performance.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
This DP-700 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-700 exam.