Knowledge check

You have deployed your cloud-native app to production. Some users are complaining that the product catalog is slow to load. You want to see how request durations vary over time. Which type of telemetry should you use?

You're troubleshooting an issue with a microservice, which is experiencing crashes. Which type of telemetry should you use?

You want to store some custom information in distributed tracing about the behavior of your shopping basket microservice. Which OpenTelemetry class or interface should you use?