SAA-C03 exam dumps: questions 401 to 500 of 552

Correct answers: A, B

• A. Correct.

  Enabling versioning ensures that all versions of an object are preserved, and using lifecycle policies to transition previous versions to S3 Glacier reduces storage costs while maintaining long-term backups.

• B. Correct.

  Cross-region replication (CRR) ensures that the data is replicated to another AWS Region, providing disaster recovery and high availability in case of a regional outage.

• C. Incorrect.

  AWS Backup does not support direct backups of S3 buckets. Additionally, using EBS snapshots is not suitable for S3 data as EBS is designed for block storage, not object storage.

• D. Incorrect.

  S3 bucket logging is used for tracking access requests, not for backing up data. Archiving logs to S3 Glacier is unrelated to backing up the critical data in this scenario.

• E. Incorrect.

  AWS DataSync is designed for moving or synchronizing data between storage locations, such as on-premises and AWS, but it is not specifically a backup solution. Regular backups to on-premises storage may not meet the company's requirement for high durability.

Correct answers: A, C, D

• A. Correct.

  This is a valid option. Automated backups allow you to recover the database to any point within the retention period, but they are stored in the same region as the RDS instance. While this helps with accidental data deletion, it does not address regional disasters.

• B. Incorrect.

  While Read Replicas can be set up in another region, enabling backups on a Read Replica is not supported. Read Replicas are primarily used for offloading read traffic and enhancing performance, not for backup purposes.

• C. Correct.

  Exporting RDS snapshots to Amazon S3 and replicating the data to another region provides a disaster recovery solution, as it protects against regional failures and ensures data is available in a different region.

• D. Correct.

  AWS Backup supports RDS and provides application-consistent backups, which are useful for ensuring recoverable backups for your database workloads. It also allows for cross-region backup capabilities.

• E. Incorrect.

  Enabling Multi-AZ ensures high availability and durability within the same region by creating a synchronous standby replica, but it does not protect against regional disasters or accidental data deletion.

Correct answer: A

• A. Correct.

  Enabling automated backups for an RDS instance provides daily snapshots and transaction logs that allow point-in-time recovery. It is the most cost-effective and automated solution for this scenario.

• B. Incorrect.

  While manual snapshots can be used to back up the database, they require manual intervention or additional configuration, making them less automated and potentially less cost-effective.

• C. Incorrect.

  Amazon S3 Lifecycle Policies are used for managing object storage in Amazon S3, not for creating or managing RDS backups.

• D. Incorrect.

  AWS Backup can manage RDS backups, but enabling automated backups directly on the RDS instance is simpler, more integrated, and avoids the additional configuration required with AWS Backup.

Correct answers: B, C

• A. Incorrect.

  Creating EBS snapshots in the same region provides basic backup protection, but it does not protect against region-wide failures, such as disasters impacting the entire region.

• B. Correct.

  Using AWS Backup with cross-region replication ensures automated, managed backups and provides protection against region-wide failures, making it a comprehensive strategy.

• C. Correct.

  An Amazon S3 Lifecycle policy to transition backups to S3 Glacier ensures cost-effective long-term storage of older backups, which is an important part of a reliable backup strategy.

• D. Incorrect.

  Configuring an RDS Multi-AZ deployment is a high-availability solution, not a backup strategy. It ensures minimal downtime but does not provide a mechanism for recovering deleted or corrupted data.

• E. Incorrect.

  Using AWS Storage Gateway to replicate data to an on-premises data center can provide redundancy, but it is not typically the most reliable or scalable option for a cloud-native backup strategy.

Correct answers: A, C

• A. Correct.

  Provisioned IOPS SSD (io2) is designed for applications requiring low latency and high IOPS, making it suitable for the database. Cold HDD (sc1) is the lowest-cost EBS volume type and is not ideal for logs that need faster throughput.

• B. Incorrect.

  General Purpose SSD (gp3) provides a good balance of cost and performance for general workloads but may not provide sufficient IOPS for a high-transactional database. However, Throughput Optimized HDD (st1) is suitable for log storage due to its high throughput.

• C. Correct.

  Provisioned IOPS SSD (io1) is a good choice for a high-transactional database requiring consistent and high IOPS, while Throughput Optimized HDD (st1) is ideal for storing log files due to its cost-effectiveness and high throughput.

• D. Incorrect.

  General Purpose SSD (gp2) might work for moderate workloads but does not provide the performance needed for a high-transactional database. Cold HDD (sc1) is too slow for log files that require consistent throughput.

• E. Incorrect.

  Provisioned IOPS SSD (io2) is an excellent choice for the database, but using General Purpose SSD (gp3) for logs would be unnecessarily costly compared to HDD options like st1.