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ACA-Developer Exam Dumps : ACA Developer Certification

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ACA Developer Certification Questions and Answers

Question 1

You can create an event notification rule in Message Service and push notifications to the specified consumer in the form of messages, to receive events from specified Alibaba Cloud resources. Which of the following options are correct statements about the Message Service (MS) service? (Number of correct answers: 2)

Options:

A.

Event Notifications can cross regions.

B.

Message Service provides synchronous notifications to ensure the consistency between the message acknowledgment and event processing.

C.

The event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retried based on the specified retry policy.

D.

The consumer type of the event notification message can be HTTP Server, Queue, or Topic.

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Question 2

A development team currently supports an application that is designed to be deployed on a single server's local memory As part of migrating to Alibaba Cloud, the team needs to use Auto Scaling, and must therefore move their game state data off of their servers, so that they can automatically scale up and down without losing game data. Where should the team store these game results to best allow for consistent results without impacting performance?

Options:

A.

OSS

B.

RDS

C.

Redis

D.

Log Service

Question 3

Which of the following statements about PolarDB's endpoint(s) is NOT correct?

Options:

A.

The endpoint of the PolarDB MySQL database includes the cluster endpoint and the primary endpoint.

B.

Through a cluster endpoint, applications can connect to data nodes.

C.

The primary endpoint supports read/write splitting.

D.

Cluster endpoints support read/write splitting.