SAP-C02 exam dumps: questions 201 to 300 of 677

Correct answers: A, B

• A. Correct.

  Enabling Multi-AZ deployments ensures high availability and provides an automatic failover mechanism, significantly reducing downtime (RTO). This directly supports meeting the 15-minute RTO requirement.

• B. Correct.

  A cross-region read replica helps protect against regional failures and can be promoted to a standalone database in a disaster recovery scenario, supporting the RPO of 5 minutes if the replica is kept up-to-date.

• C. Incorrect.

  While automated backups are beneficial for long-term data recovery, they may not meet the strict RTO and RPO requirements for this scenario as backup restoration can take longer than 15 minutes.

• D. Incorrect.

  Amazon RDS event notifications are useful for monitoring database changes, but they do not directly address RTO or RPO requirements.

• E. Incorrect.

  RDS snapshots taken every 5 minutes using Lambda might help meet the RPO requirement but do not provide the automated failover mechanism required to achieve the 15-minute RTO.

Correct answer: A

• A. Correct.

  Warm standby with automated failover ensures that a scaled-down version of the application is always running in the DR region. This setup allows for a recovery time within 4 hours and meets the RPO of 15 minutes by enabling periodic replication to the DR region.

• B. Incorrect.

  Pilot light with manual failover could meet the RTO if the failover process is executed efficiently, but replication of trade logs every 24 hours does not meet the RPO requirement of 15 minutes.

• C. Incorrect.

  Backup and restore is a cost-effective solution but does not meet the RTO of 4 hours, as restoring the application and database from backups typically takes longer.

• D. Incorrect.

  Multi-region active-active architecture exceeds the requirements but is significantly more expensive than necessary for the stated RTO and RPO.

Correct answers: A, B, D

• A. Correct.

  Correct. In a warm standby disaster recovery strategy, the secondary Region operates with scaled-down resources to minimize costs, while critical data is replicated. This ensures readiness for scaling up during a disaster.

• B. Correct.

  Correct. Route 53 health checks and DNS failover are essential for redirecting traffic to the secondary Region when the primary Region becomes unavailable.

• C. Incorrect.

  Incorrect. While Amazon CloudFront can improve content delivery performance, it does not replace or reduce the need for a secondary Region in a disaster recovery scenario.

• D. Correct.

  Correct. Regular testing of failover processes is vital to ensure that the warm standby setup functions as expected and the secondary Region is ready to handle production workloads.

• E. Incorrect.

  Incorrect. Running the secondary Region at full capacity at all times is not cost-effective and contradicts the principles of a warm standby strategy. This approach is more suitable for a multi-site active-active configuration.

Correct answer: C

• A. Incorrect.

  Backup and Restore is the least expensive option but involves the longest recovery time. In this scenario, minimizing downtime is critical, so this is not the best choice.

• B. Incorrect.

  Pilot Light provides a minimal version of the environment in the secondary region, but scaling up from the pilot light to full production takes additional time. While it reduces costs compared to Warm Standby, it doesn't meet the requirement for quick recovery.

• C. Correct.

  Warm Standby keeps a scaled-down version of the production environment running in the secondary region. This approach balances cost and recovery time, making it the most suitable choice for minimizing downtime and data loss.

• D. Incorrect.

  Multi-Site involves running fully redundant environments in multiple regions simultaneously. While it provides the fastest recovery time, it is also the most expensive option and is unnecessary for the cost-controlled scenario described.

Correct answer: D

• A. Incorrect.

  Backup and Restore is a cost-effective strategy but has a high RTO and RPO, making it unsuitable for meeting the strict RTO and RPO requirements of 15 minutes and 5 minutes, respectively.

• B. Incorrect.

  Pilot Light provides faster recovery than Backup and Restore but still requires scaling up and configuring the secondary environment during a failover, which makes it difficult to meet the 15-minute RTO requirement.

• C. Incorrect.

  Warm Standby provides a functional secondary environment, but scaling up to full capacity during a failover might exceed the 15-minute RTO requirement, especially for a critical application like payment processing.

• D. Correct.

  Multi-Site operates fully active environments in multiple regions, ensuring near-zero downtime and minimal data loss. This strategy easily meets the RTO of 15 minutes and RPO of 5 minutes, making it the most appropriate choice for the scenario.