Danh sách quiz

Migration & Disaster Recovery

DMS, Snow family, DataSync, and DR strategies.

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  1. Câu 1. A company needs to migrate their on-premises Oracle database to Amazon Aurora PostgreSQL with minimal downtime. Which AWS service facilitates this heterogeneous database migration?
  2. Câu 2. A company is using AWS DMS to migrate a large MySQL database to Amazon RDS MySQL. They need to keep the source and target databases in sync until the application cutover is complete. Which DMS migration type should they use?
  3. Câu 3. A company needs to migrate 80 TB of data from their on-premises data center to Amazon S3. Their internet connection is 1 Gbps, and they need the migration completed within one week. Which service should they use?
  4. Câu 4. A research facility in a remote location with no internet connectivity needs to collect and preprocess IoT sensor data before transferring it to AWS. Which Snow Family device supports local compute capabilities for data preprocessing?
  5. Câu 5. A company needs to replicate data from their on-premises NFS file server to Amazon EFS on a daily schedule, transferring only changed files. Which service is purpose-built for this use case?
  6. Câu 6. A company has an RTO of 24 hours and an RPO of 24 hours for their non-critical application. They want the LOWEST cost DR strategy. Which approach should they use?
  7. Câu 7. A financial services company requires an RTO of 15 minutes and an RPO of near-zero for their trading platform. Which DR strategy meets these requirements?
  8. Câu 8. A company uses a Pilot Light DR strategy with their core database replicated to a secondary Region. During a DR test, they discover that the recovery takes 2 hours because they need to provision and configure application servers. How can they reduce the RTO to under 30 minutes?
  9. Câu 9. A company needs to implement a centralized backup policy across multiple AWS services (EC2, RDS, DynamoDB, EFS) with consistent scheduling, retention, and cross-Region copy rules. Which service should they use?
  10. Câu 10. A company needs to migrate 500 TB of data from on-premises to S3 within 30 days. They have a 10 Gbps Direct Connect link that is 60% utilized by production traffic. What is the MOST cost-effective migration approach?
  11. Câu 11. A company uses Route 53 health checks to detect failures in their primary Region. When a failure is detected, they want DNS to automatically route traffic to the DR Region. Which Route 53 routing policy should they configure?
  12. Câu 12. A media company needs to transfer 5 PB of video archives to Amazon S3 Glacier Deep Archive. The transfer must be completed within 6 months. Which AWS service is designed for this scale of data migration?
  13. Câu 13. During a DMS migration from Oracle to Aurora PostgreSQL, the team discovers that several Oracle-specific stored procedures and functions cannot be automatically converted by SCT. What is the recommended approach?
  14. Câu 14. A company needs to copy their AWS Backup recovery points to a different Region for disaster recovery compliance. Which AWS Backup feature enables this?
  15. Câu 15. A company wants to continuously synchronize files between an on-premises SMB file share and Amazon FSx for Windows File Server. They need automated scheduling and bandwidth throttling to avoid impacting production network traffic. Which service should they use?