Which AWS solution should the company use to meet these requirements?

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In: CLF-C02
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A company needs to deploy a PostgreSQL database into Amazon RDS.The database must be highly available and fault tolerant.

Which AWS solution should the company use to meet these requirements?

Amazon RDS with a single Availability Zone

Amazon RDS snapshots

Amazon RDS with multiple Availability Zones

AWS Database Migration Service (AWS DMS)

Explanations:

A single Availability Zone does not provide high availability or fault tolerance because it relies on one data center. If that Availability Zone fails, the database will be unavailable.

RDS snapshots are used for backups and data recovery, not for providing high availability or fault tolerance in real-time operation.

Amazon RDS with multiple Availability Zones (Multi-AZ) provides high availability and fault tolerance by automatically replicating data to a standby instance in a different Availability Zone. If one zone fails, the system fails over to the standby.

AWS Database Migration Service (DMS) is used for migrating databases to AWS, not for providing high availability or fault tolerance for an operational database.

2025-10-21

1 Comment

  1. Sophia
    Author

    I rank that the answer is:
    Amazon RDS with multiple Availability Zones

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