Which two metrics are commonly visualized in GPCC to evaluate cluster performance?
(Choose two)

A geospatial analyst is building a query in Greenplum to identify all stores within a 5 km radius of each customer location. The coordinates are stored as geometry points.
Which PostGIS function should they use in the WHERE clause?

Which user interface component of GPCC allows visualization of disk I/O, memory, and CPU usage across the cluster?

Greenplum uses the ___ library to support scalable, in-database machine learning for structured datasets.

How can GPCC assist in identifying problematic queries?