Section D — Operations & Troubleshooting (20 points) 13. (6 pts) Given a web service on RyuuCloud returning intermittent 503 errors, outline a step-by-step troubleshooting process and which metrics/logs you would check first. 14. (6 pts) Explain backup and disaster recovery options in RyuuCloud. Provide an example backup schedule and an RTO/RPO estimate for a medium-criticality application. 15. (8 pts) You deploy a database cluster and notice replication lag. List possible causes and remediation steps. Provide one sample command to check replication status.