Questions 55 to 57
Explanations for questions 55 to 57
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Question 55
You need to scale read operations for your Amazon Aurora DB within a region. To increase availability, you also need to be able to failover if the primary instance fails.
What should you implement?
- Aurora Replicas
- A DB cluster
- An Aurora Cluster Volume
- Aurora Global Database
Correct Answer: 1
Explanation: Aurora Replicas are independent endpoints in an Aurora DB cluster, best used for scaling read operations and increasing availability. Up to 15 Aurora Replicas can be distributed across the Availability Zones that a DB cluster spans within an AWS Region. To increase availability, you can use Aurora Replicas as failover targets, i.e., if the primary instance fails, an Aurora Replica is promoted to the primary instance.
The graphic below provides an overview of Aurora Replicas:
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