Answer: At least one notebook library to be executed

When creating a Delta Live Tables (DLT) pipeline, certain configurations are mandatory. A key-value pair configuration (Option A) is optional and used for custom settings. At least one notebook library to be executed (Option B) is required as the pipeline needs code to process data. A path to cloud storage location for the written data (Option C) is mandatory to ensure data persistence and pipeline recoverability. The location of a target database for the written data (Option D) is optional; if not specified, tables are stored in the specified storage location but not published to the metastore. Given the question provides four options and asks for one correct answer, the most critical mandatory option is B, as without it, the pipeline cannot execute any data processing logic.

Author: LeetQuiz Editorial Team