Answer-first summary for fast verification
Answer: Amazon RDS with multiple Availability Zones
## Explanation Amazon RDS with **Multiple Availability Zones** provides high availability and fault tolerance by: - **Automatic failover**: If the primary database instance fails, RDS automatically fails over to the standby replica in a different Availability Zone - **Data redundancy**: Synchronous replication ensures data consistency across Availability Zones - **Fault tolerance**: Protects against AZ-level failures and infrastructure issues - **High availability**: Maintains database availability even during maintenance events **Why other options are incorrect:** - **Single Availability Zone**: Only provides a single instance with no automatic failover capability - **RDS snapshots**: Used for backup and restore, not for high availability - **AWS DMS**: Used for database migration, not for providing high availability For PostgreSQL databases requiring high availability and fault tolerance, Amazon RDS Multi-AZ deployment is the recommended solution.
Author: Ritesh Yadav
Ultimate access to all questions.
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?
A
Amazon RDS with a single Availability Zone
B
Amazon RDS snapshots
C
Amazon RDS with multiple Availability Zones
D
AWS Database Migration Service (AWS DMS)
No comments yet.