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. Which DLT pipeline execution mode processes all available data and then stops? → Triggered mode
5. 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
6. 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
7. What does ETL stand for in data processing? → Extract, Transform, Load
8. 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
9. 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
10. 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
11. Which feature supports auditing and compliance tracking? → Audit logging
12. What is the purpose of row-level security in lakehouse systems? → Controls which rows users can access
13. Which component ensures secure user authentication? → IAM system
14. What file format do Delta Live Tables use to store their output by default? → Delta Lake format
15. 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
16. What is a common practice for minimizing data exposure? → Data masking
17. 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
18. Which of the following is an advantage of lakehouse architecture? → Supports unified analytics workflows
19. 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
20. What is Delta Live Tables (DLT) in the Databricks ecosystem? → A declarative ETL framework for building reliable data pipelines
21. 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
22. 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
23. 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
24. 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
25. 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
26. How is encryption used in a lakehouse architecture? → Secures data at rest and in transit
27. What does the CONSTRAINT clause do in a DLT SQL pipeline? → Specifies data quality expectations with a name and condition
28. What mechanism does DLT use to track which data has already been processed in a streaming pipeline? → Checkpoint files stored in cloud storage
29. What is the primary ethical obligation of a LFC professional when a conflict of interest arises during databricks sql & warehousing activities? → Disclose the conflict to all relevant parties and recuse from the decision if necessary
30. Which quality assurance method is most commonly applied in photon engine optimization to verify that LFC professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks