# When kustomize edit fix --vars converts a var named DB_HOST, what does it write where $(DB_HOST) appeared in resource files?

Kustomize, Hard (Expert), Commands. https://k8wiz.com/uquiz/when-kustomize-edit-fix-vars-converts-a-var-named-db_host-what-does-it-write-where-db_host-appeared-in-resource-files

- A. ${DB_HOST}
- B. An empty string
- C. REPLACE_DB_HOST
- D. DB_HOST_PLACEHOLDER

**Answer:** DB_HOST_PLACEHOLDER

**Explanation:** The conversion adds a replacement target for each place the var appears and swaps the $(DB_HOST) text for DB_HOST_PLACEHOLDER. The replacement overwrites that placeholder during the build. Because this edits resource files, run it in a clean Git tree and compare the build output afterwards.