ACA-Developer Exam Dumps - ACA Developer Certification

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 the Alibaba Cloud CLI, what is the default data format for responses, when executing queries such as "aliyun ecs Describelnstances"?

By default, Function Compute creates an instance for each request Function compute allows you to create multiple instances concurrently to reduce costs and improve execution efficiency Which of the following scenarios is NOT suitable for enabling the feature of handling multiple requests on a single instance? (Number of correct answers: 2)

Which of the following are types of backend services that API Gateway supports? (Number of correct answers: 3)

Log Service uses a semi-structured data model to define a log. This mode contains five data fields:

Topic, Time, Content, Source, and Tags. Log Service has different requirements for the format of each field in the log. Which of the following fields cannot be empty characters? (Number of correct answers: 4)

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)