LFC Cheat Sheet 2026

The 30 highest-yield LFC facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is the primary ethical obligation of a LFC professional when a conflict of interest arises during photon engine optimization activities? → Disclose the conflict to all relevant parties and recuse from the decision if necessary
2. A LFC professional encounters an unfamiliar situation while performing apache spark data engineering duties. What is the most appropriate first action? → Consult relevant standards, guidelines, or a qualified supervisor before proceeding
3. What is the role of data versioning in lakehouse systems? → To track and revert changes
4. What does setting `registered_model_name` in `mlflow.log_model()` accomplish? → It logs and simultaneously registers the model in the registry in one step
5. Which DLT pipeline execution mode processes all available data and then stops? → Triggered mode
6. What is the recommended approach when a source system changes its schema and sends new fields to the Bronze layer? → Allow schema evolution so Bronze absorbs the new fields without pipeline failure
7. Which quality assurance method is most commonly applied in databricks sql & warehousing to verify that LFC professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks
8. A LFC professional encounters an unfamiliar situation while performing unity catalog & data governance duties. What is the most appropriate first action? → Consult relevant standards, guidelines, or a qualified supervisor before proceeding
9. What does ETL stand for in data processing? → Extract, Transform, Load
10. Which of the following is a fundamental principle of apache spark data engineering as it applies to Lakehouse Fundamentals Certification? → Systematic evaluation and adherence to established industry standards
11. In DLT, what happens to records that violate an expectation configured with ON VIOLATION DROP ROW? → The invalid record is excluded from the output dataset
12. Which of the following is a fundamental principle of structured streaming pipelines as it applies to Lakehouse Fundamentals Certification? → Systematic evaluation and adherence to established industry standards
13. In Unity Catalog, which component stores the cloud storage access credentials (e.g., an IAM role or managed identity) needed to access an external location? → Storage credential
14. Which feature supports auditing and compliance tracking? → Audit logging
15. What is the purpose of row-level security in lakehouse systems? → Controls which rows users can access
16. Which component ensures secure user authentication? → IAM system
17. Which of the following is a fundamental principle of databricks sql & warehousing as it applies to Lakehouse Fundamentals Certification? → Systematic evaluation and adherence to established industry standards
18. What is a common practice for minimizing data exposure? → Data masking
19. Which of the following is a fundamental principle of medallion architecture layers as it applies to Lakehouse Fundamentals Certification? → Systematic evaluation and adherence to established industry standards
20. Which of the following is an advantage of lakehouse architecture? → Supports unified analytics workflows
21. A LFC professional encounters an unfamiliar situation while performing structured streaming pipelines duties. What is the most appropriate first action? → Consult relevant standards, guidelines, or a qualified supervisor before proceeding
22. What is Delta Live Tables (DLT) in the Databricks ecosystem? → A declarative ETL framework for building reliable data pipelines
23. Which system table in Unity Catalog can be queried to see a history of all privilege grants and revocations on a securable object? → system.access.audit
24. When loading a model from the registry using a Unity Catalog alias, which URI format is correct? → models:/catalog.schema.model@alias
25. A Bronze table is growing rapidly and query performance is degrading. Which operation should be applied WITHOUT moving data out of the Bronze layer? → Running OPTIMIZE and Z-ORDER on the Bronze Delta table
26. A LFC professional encounters an unfamiliar situation while performing delta lake acid transactions duties. What is the most appropriate first action? → Consult relevant standards, guidelines, or a qualified supervisor before proceeding
27. Which quality assurance method is most commonly applied in structured streaming pipelines to verify that LFC professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks
28. A LFC professional encounters an unfamiliar situation while performing mlflow model registry duties. What is the most appropriate first action? → Consult relevant standards, guidelines, or a qualified supervisor before proceeding
29. Which quality assurance method is most commonly applied in unity catalog & data governance to verify that LFC professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks
30. A LFC professional encounters an unfamiliar situation while performing medallion architecture layers duties. What is the most appropriate first action? → Consult relevant standards, guidelines, or a qualified supervisor before proceeding