Reliability & Localisation — quiz

The infrastructure team wants to verify a payment processing service recovers correctly after a database failover. They plan to randomly terminate the primary database node during a load test. What kind of testing is this?

• Performance testing — measuring throughput during a database failure event
• Reliability and chaos testing — deliberately injecting failures to verify the system degrades gracefully and recovers within acceptable SLOs
• Security testing — verifying there is no unauthorised database access during the incident
• Regression testing — confirming existing behaviour is preserved after the recovery