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Which of the following is NOT required for SMC (Server Migration Center) to migrate a server to Alibaba Cloud?

• A. Import the migration source information to the SMC console

• B. From the SMC console, configure the type of disk image to be generated during the migration

• C. The SMC client transfers the source data to an intermediate ECS instance.

• D. The SMC backend service generates a target Alibaba Cloud image based on the migration source

In Alibaba Cloud, a developer finds that the ECS instance he created does not have public IP assigned. The API method used was 'CreateInstance'. Which of the following is the most likely reason?

• A. The developer did not call AllocatePublicIPAddress (an additional API call), which is needed to assign a public IP.

• B. The CreateSecurityGroup API call was not made.

• C. The CreateDisk API call was not made.

• D. The ECS was not restarted after being created.

Which of the following web applications are suitable for deployment on Simple Application Server (SAS), as compared with ECS? (Number of correct answers: 3)

• A. Quickly build a personal blog website

• B. Quickly build a small e-commerce website

• C. Quickly build serverless site using Function Compute

• D. Set up a NoSQL database service

• E. Quickly build a personal, learning, or test environment

Which of the following features are unique to Alibaba Cloud Container Registry, as compared with Docker Hub? (Number of correct answers: 2)

• A. Container Registry can automatically build new Docker images when source code changes.

• 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. You can create and delete image repositories in different regions based on your needs.

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

Which of the following data volume types is not supported by Elastic Container Instance (ECI)?

• A. EmptyDir

• B. NFS

• C. ConfigFile

• D. FixedVolume

If 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?

• A. Manually install the Node.Js package in the Function Compute console

• B. Create a single web application and upload the corresponding code package via the Function Compute console (or fcli)

• C. Configure program startup commands and access ports in the Function Compute console

• D. Start and verify the application in the Function Compute console

Serverless Workflow allow 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?

• A. Request response mode

• B. Synchronization mode

• C. Asynchronous mode

• D. Waiting for callback mode

Which of the following steps is NOT mandatory when creating an API through Alibaba Cloud API Gateway?

• A. Define basic API information

• B. Attach a domain name

• C. Define API Request parameters

• D. Define the API backend service

A Developer is creating a Function Compute function. This function requires around 1 GB of temporary storage for files while executing. These files will not be needed after the function is completed for a fixed period. How can this developer MOST efficiently handle the temporary files?

• A. Store the files in Cloud Disk and delete the files when Function Compute function call completes.

• B. Copy the files to NFS and delete the files when the Function Compute function call completes.

• C. Store the files in the /tmp directory on a temporary ECS instance, and delete the files at when the Function Compute function call completes.

• D. Copy the files to an OSS bucket with a lifecycle policy configured to delete the files automatically

When you use SQL statements to access tables in a database without an index configured, a full table scan will be performed. If a table contains a large amount of data, this kind of scan will access a large amount of data and consume a lot of the database's resources. Which of the following options are best practices when creating database indexes? (Number of correct answers: 3)

• A. Add an index to a field that is frequently queried but does not frequently perform add, delete, or modify operations.

• B. Applies indices to fields that contain many records.

• C. A table should not contain more than 6 indexed fields.

• D. Apply indexing to fields of fixed length (preferably not long fields).