Challenges
Master AI-assisted coding through hands-on practice
33 challenges
6 categories
SEV1: Payment Service Outage
IncidentHard
Critical incident: The payment service is down in production. Users cannot complete purchases. You are the on-call engineer - investigate the dashboards, logs, and traces to identify the root cause and determine the remediation steps.
30m
2.0x XP
0 completed
The Cache Stampede Crisis
IncidentHardPremium
After a cache server restart, the database is being overwhelmed with requests. Diagnose the cache stampede and propose solutions.
30m
2.0x XP
0 completed
Debug API Gateway Timeouts
IncidentHard
Users are experiencing intermittent 504 timeout errors. Investigate the system to find the root cause and propose fixes.
30m
2.0x XP
0 completed
Fix Connection Pool Exhaustion
DebugHardPremium
API requests are timing out. The database connection pool is being exhausted due to leaked connections.
30m
2.0x XP
0 completed
Diagnose the Memory Leak
DebugHardPremium
Production servers are running out of memory. Analyze the code and logs to find the memory leak.
40m
2.0x XP
0 completed