AWS Solutions Architect Associate
136 incident response problems that help with AWS Solutions Architect Associate prep.
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All problems (136)
CICD-312An IaC validation stage ignores tag-only drift while a compliance controller uses those tags to permit or deny later runtime changes during a failover rehearsalThe infrastructure shape matches expectations, yet its governance behavior does not. Normal traffic masked the issue until the standby or alternate path became active under rehearsal conditions.CI/CDAdvanced18 minProCICD-186A reviewed Terraform plan applies under a different provider context during a failover rehearsalThe diff appears safe, yet the runtime alias or account context points at different infrastructure during apply. Normal traffic masked the issue until the standby or alternate path became active under rehearsal conditions.CI/CDAdvanced19 minProCICD-111Parallel Terraform plans race on the same remote state lock timeout and the second pipeline applies an outdated assumption setTwo changes target one workspace, one waits on the lock, and by the time it runs its plan is no longer trustworthy because the state already evolved.CI/CDAdvanced19 minProCICD-028Retry policy re-runs destructive migration job twiceRetry policy re-runs destructive migration job twice is a hands-on troubleshooting drill. A generic retry wrapper helps flaky steps but becomes dangerous when applied to a migration or cleanup command. GitHub GitHub Actions Workflows needs to be checked by narrowing scope, rec...CI/CDIntermediate21 minProCICD-039ECR lifecycle cleanup deletes digest still referenced by promotion manifestThe production promotion manifest points to an immutable digest, but registry cleanup removes the only copy before the delayed deployment window starts.CI/CDIntermediate22 minProCICD-023Artifact signing step succeeds locally but fails in CI runnersThe same signing command works on a developer machine but breaks in ephemeral runners because the key material and trust chain differ.CI/CDAdvanced27 minProCICD-037CloudFormation change set succeeds but rollback fails on nested stack driftThe proposed change set looks safe, yet rollback breaks because one nested stack already drifted away from the expected template state.CI/CDAdvanced29 minProK8S-029CSI driver recovers volume attach only after controller restartPersistent volume attachment gets stuck until the controller is restarted, pointing to an unhealthy reconciliation loop.KubernetesAdvanced29 minProCICD-060Terraform PR plan is green but main apply uses a different variable setReviewers trust the plan output, but production apply behaves differently because the PR stage reads one workspace and tfvars path while the main branch apply uses another.CI/CDAdvanced29 minProCICD-024Manual approval gate skips production environment reviewManual approval gate skips production environment review is a hands-on troubleshooting drill. A workflow was expected to pause before production, but a condition mismatch causes the approval gate to be skipped. GitHub GitHub Actions Workflows needs to be checked by narrowing s...CI/CDBeginner14 minProK8S-025Cross-namespace DNS lookup works in debug pod but not app podA quick debug shell resolves the name, while the workload container fails because search domains and runtime image differ.KubernetesIntermediate20 minProCICD-055CodeBuild local cache reuses stale base layer after package repository changedBuild time looks great, but the produced image quietly carries an older package baseline because local Docker layer cache survives a repository-side base image update.CI/CDIntermediate21 minProCICD-017Unsigned images get mixed in and are blocked by the deployment approval policyA situation where the security policy is correct but a missing image-signing scheme blocks releases for only certain services.CI/CDIntermediate21 minProCICD-025Parallel integration jobs overwrite the same test databaseParallel integration jobs overwrite the same test database is a hands-on troubleshooting drill. Test isolation is missing, so matrix jobs race each other and make the pipeline fail only under parallel load. GitHub GitHub Actions Workflows needs to be checked by narrowing scope...CI/CDIntermediate22 minProCICD-006Wrong artifacts deployedA scenario that narrows down the root cause, centered on designing how to guarantee output boundaries between parallel jobs, in the situation of wrong artifacts being deployed because matrix build results get mixed up.CI/CDIntermediate22 minProCICD-022Canary deploy passes health checks but fails background jobsCanary deploy passes health checks but fails background jobs is a hands-on troubleshooting drill. The web process looks healthy while the worker image lags behind and starts processing incompatible payloads. GitHub Actions Workflows needs to be checked by narrowing scope, rece...CI/CDIntermediate24 minPro