You have an Azure SQL database

HOTSPOT

You have an Azure SQL database.

You have a query and the associated execution plan as shown in the following exhibit.

Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic. NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Graphical user interface, text, application, email

Description automatically generated

Box 1: Key Lookup

The Key Lookup cost is 99% so that is the performance bottleneck.

Box 2: nonclustered index

The key lookup on the clustered index is used because the nonclustered index does not include the required columns to resolve the query. If you add the required columns to the nonclustered index, the key lookup will not be required.