DP-700 Implement and Manage an Analytics Solution Practice Question
Which action must be taken to enable 'Time Travel' functionality on a Delta Lake table in Fabric?
⚠ Common exam trap
Candidates often look for complex configuration settings or manual snapshot schedules, assuming Time Travel requires explicit setup beyond using the correct file format.
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
✓
Ensure data is stored in Delta format.
Time Travel in Delta Lake is a powerful feature that allows users to query past states of data for auditing or error recovery. It works by retaining history in the transaction log. Understanding how to manage this feature is vital for data engineers who need to ensure data resilience and recover from accidental deletions or corruption events within the production analytics pipeline.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure the 'Retention Period' in the workspace settings.
Why it's wrong here
Retention settings for Time Travel are managed at the Delta table level through Spark SQL configuration, not the workspace level. The workspace settings are for platform features, while Time Travel is a table-specific capability that requires fine-tuned log retention policies to function correctly for historical queries.
- ✗
Enable the 'Time Travel' flag on the Lakehouse.
Why it's wrong here
There is no global flag for Time Travel in the Lakehouse properties. Time Travel is natively enabled by default for all Delta tables. It relies on the underlying transaction log, so no manual enabling is required, provided that the data is stored in the Delta format.
- ✓
Ensure data is stored in Delta format.
Why this is correct
Time Travel is an inherent feature of the Delta Lake storage format. As long as the data is written as a Delta table, the transaction log automatically tracks versions, enabling users to use the 'VERSION AS OF' or 'TIMESTAMP AS OF' syntax to query the data at previous points in time.
- ✗
Create a secondary copy of the table manually.
Why it's wrong here
Manually copying tables is redundant and counterproductive. Delta Lake's native Time Travel eliminates the need for maintaining separate snapshots, which would double storage costs and increase maintenance overhead without providing the atomic, transactionally consistent versioning capabilities that the built-in Delta Time Travel feature offers.
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.