Question

seçiniz screen tips key tips database tools seçiniz are the black blocks or boxes that appear when you press the alt key on the keyboard.

Explanation:

The question is about identifying what the black blocks/boxes appearing on pressing the Alt key are. Key Tips are the black boxes that show up when the Alt key is pressed (e.g., in Microsoft Office applications to show keyboard shortcuts for commands). Screen Tips are tooltips for elements, and Database Tools are for database - related operations, so they don't match.

Answer:

Key Tips