1. Streaming Cost advanced

    A connected-vehicle telemetry pipeline's cost is growing faster than the fleet. Where does the cost go, and what reduces it?

    2 min answer athertelemetrycostfiltering
  2. Streaming Cost intermediate

    A marketplace platform at Flipkart's scale runs three separate Kafka clusters for orders, device telemetry and experimentation. Consolidating them into one shared cluster cuts the infrastructure bill by about 40%. What did that 40% buy, and when does the bill arrive?

    2 min answer flipkartmulti-tenancyquotasstreaming-cost
  3. Streaming Cost beginner

    A streaming job handles about 400 events per second in business hours and under 5 per second overnight. The team expected the bill to track the volume. It is flat at roughly 55 dollars a day whatever the traffic does. Why is it flat and what is the cheaper shape if a 10-minute delay is acceptable?

    2 min answer costmicro-batchingalways-onduty-cycle
  4. Streaming Cost advanced

    A streaming pipeline's cost grows faster than its event volume. What are the drivers?

    1 min answer streaming-coststatepartitionsretention
  5. Streaming Cost advanced

    A streaming platform's cloud bill is dominated by a line item nobody recognises: inter-zone data transfer. Explain and fix.

    2 min answer finopsstreamingnetworking
  6. Streaming Cost intermediate Multiple choice

    A topic ingests 200 MB per second, replication factor 3, retained 30 days. Producers and consumers are spread across 3 availability zones with no rack awareness in the consumers. Roughly what does the storage footprint come to?

    3 min answer kafkacostretentionreplication