A cloud engineer must improve the availability of a database for an application. The database must meet the following requirements: - Failover capability in case of a data center outage…

The correct answer is D. Multi-availability zone database instance. A multi-availability zone (Multi-AZ) database instance deploys a primary database in one data center and a synchronous standby replica in a separate, geographically distinct availability zone. If the primary data center experiences an outage, the database automatically fails…

Cloud architecture

Question

A cloud engineer must improve the availability of a database for an application. The database must meet the following requirements:

Failover capability in case of a data center outage
Point-in-time data restoration capabilities

Which of the following best meets these requirements?

Options

AClustered database instance
BCached Redis cluster
CDatabase instance replica
DMulti-availability zone database instance

How the community answered

(30 responses)

A
13% (4)
B
3% (1)
C
7% (2)
D
77% (23)

Explanation

A multi-availability zone (Multi-AZ) database instance deploys a primary database in one data center and a synchronous standby replica in a separate, geographically distinct availability zone. If the primary data center experiences an outage, the database automatically fails over to the standby with minimal downtime - satisfying the failover requirement. Multi-AZ configurations also typically include automated backups that support point-in-time recovery. A clustered database instance improves performance and availability within a single AZ but does not protect against full data center failures. A Redis cluster is a caching solution, not a durable primary database. A read replica offloads read traffic but does not provide automatic failover.

Topics

#High Availability#Disaster Recovery#Point-in-time Recovery#Multi-AZ Databases

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