DP600 Exam Official Study Guide link below:

https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/dp-600

ECDC Covid 19 Public Dataset:

The latest available public data on geographic distribution of COVID-19 cases worldwide from the European Center for Disease Prevention and Control (ECDC). Each row/entry contains the number of new cases reported per day and per country or region.

https://learn.microsoft.com/en-us/azure/open-datasets/dataset-ecdc-covid-cases?tabs=azure-storage