Online Access Free ACA-Operator Exam Questions

Which Alibaba Cloud service is used to manage cloud computing resources including the deployment?

• A.Resource Access Management (RAM)
• B.Operation Orchestration Service (OOS)
• C.Maintenance Orchestration Service (MOS)
• D.Resource Orchestration Service (ROS)

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

• A.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.
• B.You can set your image repository access to public or private.
• C.Container Registry can automatically build new Docker images when source code changes.
• D.You can create and delete image repositories in different regions based on your needs.

Tracing Analysis is used to analyze and diagnose performance bottlenecks in a distributed application architecture and make microservice development and diagnostics more efficient.

• A.False
• B.True

Which database utility is suitable for automate perception, healing, optimization, O&M, and security assurance for databases?

• A.DBS
• B.DMS
• C.DAS
• D.DTS

A developer needs to use some sensitive business data and operational data in the process of developing a program, but the data should be protected (encrypted or anonymized) as much as possible. In order to facilitate and secure management of data encryption keys, the developer can use Alibaba Cloud Key Management Service (KMS) envelope encryption technology. Which of these statements is NOT correct, regarding KMS?

• A.The master key generated by KMS is also kept by the user.
• B.Envelope encryption is an encryption mechanism similar to digital envelope technology. The technology allows you to store, transfer and use encrypted data by encapsulating their Data Keys (DKs) in an envelope, instead of \y encrypting/decrypting data directly with Customer Master Keys (CMKs).
• C.Developers can generate a plaintext data key and a ciphertext data key by calling the GenerateDataKey interface.
• D.The user uses the master key created on KMS to encrypt and decrypt the generated data key.