Exam AWS Certified Database - Specialty topic 1 question 36 discussion

D is answer

Custome end points are usually used when custom load balancing is needed ,i.e. when specific read application should connect to comstom read replicat directed by custom rules in load balancing. When all RR are of same size, so need for custom end point reader end point will do .

Answer:D

A custom endpoint for an Aurora cluster represents a set of DB instances (here replicas) that you choose. When you connect to the endpoint, Aurora performs load balancing and chooses one of the instances in the group to handle the connection. we can create like two custom endpoints: 1. With two specific read replicas for application A, another three read replicas for application B. HA and meet the requirements that A and B will connect to different replicas

Definitely (D)

Answer is: D

A is incorrect because it is not HA: "Use a specific instance endpoint for each replica" => if the specific instance is down, connection is lost B is incorrect because the demand requires 02 applications connect to different RO replicas. In case B, the traffic will be distributed among read replicas. C is same with A, using one endpoint or instance does not meet the HA requirement. D. Use custom endpoints for the two read-only applications. D is correct because we can create like two customer endpoints: 1. With two specific read replicas for application A, another three read replicas for application B. HA and meet the requirements that A and B will connect to different replicas

Ans is D. In order for application to connect to specific instance, and also provide HA by flipping DNS in case of one read replica goes down.

No doubts that D is the answer.

Ans: D

A. For example, your client application might require more fine-grained load balancing based on workload type. In this case, you can configure multiple clients to connect to different Aurora Replicas in a DB cluster to distribute read workloads. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Overview.Endpoints.html#Aurora.Endpoints.Viewing

D - Custom endpoints allows distributing workload in a customized way by grouping read-replicas of various size, configuration and location

D, custom endpoints

D. Custom endpoint for custom requirements

the answer is D , dedicated endpoint for each application by custom endpoint or each application has to use reader endoint not cluster reader and this option does not exists in the answers.

D is the answer. Dedicated replica is the key

Answer is D. B is not correct, reader endpoint of the cluster performs load balancing across all reader instances, questions say reader instances must be split up between to applications.