ACA-Developer 無料問題集「Alibaba Cloud ACA Developer Certification」

（A）OSS

（B）Redis

（C）Log Service

（D）RDS

（A）After disconnecting the connection between the source instance database B and the application, you need to log in to the source database B to check the session messages to ensure that no new sessions performed write operations.

（B）Create a reverse data migration task and start it to migrate subsequent incremental data from target Instance database B to source instance database B.

（C）The database account used for data migration must have read and write permissions. To ensure database security, please delete the database account used for data migration or reclaim related write permissions after data migration is completed.

（D）The code for the application will have to be rewritten once this migration is complete.

（A）You can create and delete image repositories in different regions based on your needs.

（B）For source code hosted on websites outside China, Container Registry can use servers outside China to build Docker images, even when you are using a Container Registry instance in Mainland China.

（C）Container Registry can automatically build new Docker images when source code changes.

（D）You can set your image repository access to public or private.

（A）RAM users can be created under a single Alibaba Cloud account, corresponding to employees, systems, or applications.

（B）RAM users belong to an Alibaba Cloud account, but they can also operate as independent accounts with their own private resources, not visible to the primary Alibaba Cloud account.

（C）RAM users must be authorized by the Alibaba Cloud account to log in to the console or use the API to manage the resources owned by the Alibaba Cloud account.

（D）RAM users do not "own" the resources that they create (those belong to the Alibaba Cloud account itself), and RAM users cannot generate and pay their own individual bills (costs accrue to and are billed to the master Alibaba Cloud account).

（A）Jaeger

（B）Skywalklng

（C）Pinpoint

（D）Zipkln

（A）HTTP Body

（B）HTTP Header

（C）Query

（D）Parameter Path

（A）Applications requiring high OPS, such as logging apps

（B）Scenarios where complex transaction support is required

（C）Applications where JSON is a good choice of storage format

（D）Applications requiring geo-location queries, such as logistics or order status apps

（A）Alibaba Cloud uses the built-in functionality of the SSL certificate service to encrypt and store the private key to certificates private key

（B）Alibaba Cloud Certificate Service keys are loaded Into memory in plaintext format ONLY when needed

（C）The plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly

（D）Alibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key

（A）Download the Java code from GitHub to your laptop, build the Docker image using a local Dockerfile, and use docker push to upload It to Container Registry.

（B）Associate your Alibaba Cloud Container Registry instance with your GitHub repository, and upload the Java code and Dockerfile to GitHub Th Container Registry's built-in build service, configuring a rule that will rebuild your container image whenever your GitHub code is updated

（C）Upload the Dockerfile to GitHub for version control, then download it together with the Java code to your local device, compile and pack container image, and upload the image to Alibaba Cloud Container Registry via docker push .

（D）Associate your Alibaba Cloud Container Registry instance with your GitHub repository, and upload the Java code and Dockerfile to GitHub Set u Jenkins environment to automate the process of building the container image and pushing it to your Container Registry instance.

（A）In the process of creating a Scaling Group, associate multiple Server Load Balancers

（B）When creating the scaling group, select multiple Vswitches in multiple Zone within a Region

（C）Select multiple VPCs when creating the scaling group

（D）Choose a variety of different ECS types when creating your Scaling Configuration