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An Elastic Compute Service (ECS) instance (private IP only) needs to read data from a RDS MySQL database in another VPC through a private IP address, and at the same time, RDS ' s public internet endpoint needs to be available for requests from some internet clients. Which steps must be taken to allow applications to access this RDS instance via both interfaces? (Number of correct answers: 2)
When using Alibaba Cloud CDN, a visitor ' s request will first be routed to a CDN edge node, and in the event of a cache miss at this edge node, the node will fetch data from the origin site (back-to-source request). Even with this redirection, it is possible for the origin site to see the visitors real IP address. Which of the following statements about obtaining the visitor ' s real IP address are correct? (Number of correct answers: 2)
A job hunting website stores user ' s resumes in Object Storage Service (OSS) The current resume upload process is as follows:
7. Users upload resumes
2. The server responds to the upload request
3. The resume is uploaded to the server
4. 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?
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?
Which of the following programming languages are supported by the Alibaba Cloud SDK? (Number of correct answers: 3)
Which of the following options describes the basic concepts of Alibaba Cloud Tracing Analysis correctly? (Number of correct answers: 3)
Function Compute supports one-way triggers and two-way triggers. Which of the following triggers is a one-way trigger? That is to say you only need to configure the trigger in the event source, not in Function Compute?.
During the process of backing up an RDS database, a developer found that the backup failed. What might cause this to happen?
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?
Which of these are suitable use cases for Alibaba Cloud ' s MongoDB service? (Number of correct answers: 3)
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)
In PolarDB, if an UPDATE SQL statement encounters an issue, you need to check the execution plan to figure out the root cause. However, in the production environment, to avoid affecting the production data, what statement should you use to view the execution plan? (Number of correct answers: 2)
Alibaba Cloud Log Service is a Pay-As-You-Go service. The billing unit is 7 day, and the configuration can be adjusted at any time: fees are charged according to actual usage. Which of the following are the main charges for Log Service? (Number of correct answers: 3)
By default Function Compute cannot access resources within a VPC network group. To enable Function Compute to access resources located in a VPC, which of the following parameters needs to be configured? (Number of correct answers: 3)
Which of the following statements about PolarDB ' s endpoint(s) is NOT correct?
Alibaba Cloud RabbitMQ is typically used in scenarios where message publishing and consumption performance requirements are high. Which of the following are supported message types in Alibaba Cloud Rabbit MQ? (Number of correct answers: 3)
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?
A company has some new content that needs to be promoted (such as new features, new activities, new games, or new articles). In order to achieve the overall promotion goal, the operating staff will select various channels for promotion (including standard HTML/HTML5 (desktop), iOS, and Android). You are using Alibaba Cloud ' s Log Service: in order to ascertain the effectiveness of content promotion accurately and in real time, which log collection method should you use, as a developer?
What are the advantages of using Elastic Container Instance (ECI) to deploy applications compared with using ECS? (Number of correct answers; 2)
When using the Alibaba Cloud CLI, what is the default data format for responses, when executing queries such as " aliyun ecs Describelnstances " ?
You have an application with the following requirements:
7. There will be a lot of video content that need to be uploaded.
2. Each uploaded video needs to be preprocessed to provide different video resolutions and quality levels to accommodate different devices and network conditions.
3. 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)
Which of the following options is correct, regarding Object ACL in Alibaba Cloud ' s Object Storage Service (OSS)?
Which of the following is NOT a valid state for a scaling activity in Alibaba Cloud ' s Elastic Scaling Service ESS -also known as Auto Scaling) state of the scaling activity in the Alibaba Cloud elastic
scaling group?
TESTED 01 May 2026