Power BI can handle big data and large datasets through features like DirectQuery, which enables real-time analysis without importing the data. It supports data compression and optimization for efficient processing and offers scalable solutions for working with substantial data volumes.
If you are interested to know more about it and pursue a career in this field, then I would suggest you check out this Niraj’s video about how he upskilled himself and became a Power BI expert just after completing Microsoft Power BI Course.