# Which values from the parent chart can a subchart named 'redis' read?

Helm, Hard (Expert), Concepts. https://k8wiz.com/uquiz/which-values-from-the-parent-chart-can-a-subchart-named-redis-read

- A. All of the parent's values, merged over the subchart's defaults
- B. None, because subcharts only read their own values.yaml
- C. Values under the parent's 'redis:' key, plus 'global:'
- D. Only values passed to the parent with --set or --values

**Answer:** Values under the parent's 'redis:' key, plus 'global:'

**Explanation:** Helm passes a subchart the section of the parent's values that matches the subchart's name, merged over the subchart's own defaults, and the subchart reads it as plain .Values. Values under 'global' are copied to every chart, so .Values.global works the same everywhere. A subchart can't see the parent's other values, which keeps charts reusable.