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Lessons1
Observability means understanding a system's behavior from the information it emits. Logs capture events, metrics summarize measurements over time, and traces connect work across a request path. An SLI is a measured service behavior, while an SLO is the target the team aims to meet over a defined period.
Interview questions2
Observability means understanding a system's behavior from the information it emits. Logs capture events, metrics summarize measurements over time, and traces connect work across a request path. An SLI is a measured service behavior, while an SLO is the target the team aims to meet over a defined period.
Abused credentials create an active access-control incident, not just a validation bug. The response must stop unauthorized use, establish how credentials were obtained and restore the affected authentication boundary. The right revocation action depends on whether a single session, many refresh tokens or signing credentials were compromised.
Modules1
Security & performance learning module