Centralized Logging: Use centralized logging systems like the ELK stack?

Short answer: (Elasticsearch, Logstash, Kibana), Fluentd, or Graylog. These allow you to aggregate logs from multiple services into a single, searchable repository, making it easier to troubleshoot and analyze issues.

Real-world example (ShopNest)

ShopNest splits Catalog, Cart, Order, and Payment into services so teams can deploy catalog changes without redeploying payments.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.