Which of the following must be specified when creating a new Delta Live Tables pipeline?

Option E is the correct answer because it is the only mandatory requirement when creating a new

Delta Live Tables pipeline. A pipeline is a data processing workflow that contains materialized views

and streaming tables declared in Python or SQL source files. Delta Live Tables infers the

dependencies between these tables and ensures updates occur in the correct order. To create a

pipeline, you need to specify at least one notebook library to be executed, which contains the Delta

Live Tables syntax. You can also specify multiple libraries of different languages within your pipeline.

The other options are optional or not applicable for creating a pipeline. Option A is not required, but

you can optionally provide a key-value pair configuration to customize the pipeline settings, such as

the storage location, the target schema, the notifications, and the pipeline mode. Option B is not

applicable, as the DBU/hour cost is determined by the cluster configuration, not the pipeline

creation. Option C is not required, but you can optionally specify a storage location for the output

data from the pipeline. If you leave it empty, the system uses a default location. Option D is not

required, but you can optionally specify a location of a target database for the written data, either in

the Hive metastore or the Unity Catalog.

Reference: Tutorial: Run your first Delta Live Tables pipeline, What is Delta Live Tables?, Create a

pipeline, Pipeline configuration.