ACA Developer Certification ACA-Developer Exam Dumps Questions

1. In order to have your applications interact with Alibaba Cloud RabbitMQ, you need to create related MQ resources first.

Which of the following resources must be created? (Number of correct answers: 3)

2. During the process of backing up an RDS database, a developer found that the backup failed.

What might cause this to happen?

3. Which of the following descriptions describes the (Security Token Service) STS service correctly? (Number of correct answers: 3)

4. When a developer calls the Alibaba Cloud SDK to access Elastic Compute Service (ECS), the following error is returned; RealNameAuthenticationError

What is the possible cause?

5. Serverless Workflow allows you to orchestrate distributed tasks in sequence, branch, and parallel modes, and ensure that tasks are reliably coordinated according to your workflow logic.

Which of the following service integration modes is not supported by Serverless Workflow?

6. It should be possible to process video in parallel at scale, to ensure that videos are preprocessed in a reasonable amount of time.

Which of the following Alibaba Cloud applications can be combined to provide a low operation and maintenance burden and relatively low operating costs? (Number of correct answers: 3)

7. A Developer is asked to implement a caching layer in front of RDS. Cached content is expensive to regenerate in case of service failure.

Which implementation below would work while maintaining maximum uptime?

8. You can use Alibaba Cloud Data transmission service (DTS) or the open source tool Redis-shake to migrate and synchronize data from a local Redis instance to an Alibaba Cloud Redis instance.

What is one feature which DTS has but Redis-shake does not?

9. Which of the following options is not included in Object Storage Service (OSS) object URLs?

10. What are the benefits of creating indexes on PolarDB? (Number of correct answers: 2)

11. Which of these are suitable use cases for Alibaba Cloud's MongoDB service? (Number of correct answers: 3)

12. A developer accesses logs in a Log Service Logstore via the API. The error code returned by the server is 404.

Which of these could be the cause?

13. CloudMonitor's "Event Monitoring" feature provides you with event reporting, query, and alarm functions, Score 2 so that you can collect metrics on your running Alibaba Cloud systems, and receive alerts when something goes wrong.

Which of these is NOT a correct description of the monitoring event types supported by CloudMonitor?

14. What are the advantages of using Elastic Container Instance (ECI) to deploy applications compared with using ECS? (Number of correct answers; 2)

15. Which of the following are correct, regarding RAM users? (Number of correct answers: 3)

16. Which of the following statements are correct, with regard to Alibaba Cloud Log Service? (Number of correct answers: 3)

17. A mobile application developer intends to use Alibaba Cloud Object Storage Service (OSS) to store the end user data for their app, and to ensure data isolation between each user of the app, to prevent one user from obtaining another's data.

Which method can be done to meet these requirements?

18. 1 he server uploads the resume to OSS

Which of the following methods can be used to upload objects to OSS without requiring Step 3?

19. Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)

20. If a user finds that the Content Delivery Network (CDN) cache hit rate is low, what could be the reason? (Number of correct answers: 3)

21. Assume that a company uses ApsaraDB for PolarDB. The company commonly queries users based on their basic information, including: addresses, company names, and ID numbers.

In this scenario, what is the best practice for creating a database index (or indexes)?

22. On which operating systems can you install Alibaba Cloud command line tools? (Number of correct answers: 3)

23. 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?

24. To meet data analytics requirements on large datasets, which of these databases can meet the demand for structured and semi-structured storage for almost all types of data, albeit with limited support for strong transactions?

25. Which of the following programming languages are supported by the Alibaba Cloud SDK? (Number of correct answers: 3)

26. Company A has a large number of files store in Alibaba Cloud OSS that need to be deleted (numbering in the tens of thousands).

What is the fastest, easiest way to delete these files?

27. you have a Node.js based application and you plan to migrate it to Alibaba Cloud Function Compute, which of the following steps is unnecessary?

28. A certain project of Enterprise A (called Project-X) moves to the cloud and will need to use a variety of s Alibaba Cloud resources, such as ECS instances, RDS instances, SLB instances, and OSS storage space. There are multiple employees on the project who need to operate these cloud resources.

Because each employee has different job responsibilities and requires different permissions, what is the WRONG approach to resource management?

29. A developer is writing logs through the Log Service API, and can see via the Logstore monitorin metrics that write traffic is about 10 MB/s, but a 403 error is reported during the writing process.

Which of these is a possible cause?

30. Which of the following operations can be performed through Log Service sAPI? (Number of correct answers: 3)