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Zorluk: OrtaBackup and Restore Management

A SysOps Administrator is configuring a backup and high-availability strategy for a critical application. The application's database runs on an Amazon RDS for PostgreSQL DB instance, and its backup archives are stored in a primary Amazon S3 bucket. The administrator must replicate the S3 backup archives to an S3 bucket in a secondary AWS Region for compliance. Additionally, the administrator wants to ensure that the database has high availability and can fail over automatically with minimal downtime within the primary Region.

Which two actions should the SysOps Administrator take to meet these requirements? (Select TWO.)

  1. Enable bucket versioning on both the source and destination Amazon S3 buckets, and configure S3 Cross-Region Replication (CRR).Cevap
  2. Configure the Amazon RDS DB instance as a Multi-AZ deployment to enable automatic failover.Cevap
  3. C
    Configure Amazon S3 Cross-Region Replication (CRR) directly from the source bucket to the destination bucket without enabling versioning.
  4. D
    Configure an Amazon RDS Read Replica in the secondary Region to serve as the automatic failover target in the event of a database outage.
  5. E
    Create a Route 53 CNAME record at the zone apex to route application traffic to the standby database endpoint in the event of a primary database failure.

Cevap

Enable bucket versioning on both the source and destination Amazon S3 buckets, configure S3 Cross-Region Replication (CRR), and configure the Amazon RDS DB instance as a Multi-AZ deployment.
The correct solution involves enabling versioning on both the source and destination S3 buckets and configuring Cross-Region Replication (CRR) to copy backup archives for compliance. In addition, the RDS instance must be configured as a Multi-AZ deployment to provide automatic failover and high availability within the primary Region.

Adım Adım Çözüm

1
Enable versioning on both the source and destination S3 buckets.
Both buckets are prepared for replication, as S3 versioning is a strict prerequisite for Cross-Region Replication.
S3 CRR requires versioning to keep track of object versions and ensure replica consistency.
2
Set up S3 Cross-Region Replication (CRR) from the source bucket to the destination bucket in the secondary Region.
S3 backup archives are automatically replicated to the destination Region.
This satisfies the compliance requirement to store backup archives in a secondary AWS Region.
3
Modify the RDS DB instance to enable Multi-AZ deployment.
RDS provisions a synchronous standby replica in a different Availability Zone within the primary Region.
This enables automatic failover with minimal downtime in the event of an outage in the primary instance's Availability Zone.

Anahtar Kavram

Configuring S3 Cross-Region Replication requires versioning enabled on both source and destination buckets, and RDS Multi-AZ deployments provide automatic failover capability within a Region.
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Backup and Restore Management

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