ACA-Operator 試験問題を無料オンラインアクセス

Which of the following options are correct for Multipart Upload and Resumable Upload in Object Storage Service (OSS)? (Number of correct answers: 3)

• A.Use Multipart Upload to upload multiple parts of a file in parallel to speed up the upload process
• B.After an upload is interrupted, the portions of the file which have successfully uploaded prior to the interruption will be saved in the OSS bucket
• C.Multipart Upload is usually used when the size of the file to be uploaded is large
• D.If the upload fails due to an accident during the uploading of fragments, you need to upload all the fragments again

Which of the following statements about ECS Snapshot is NOT correct?

• A.You can roll back a disk by using a snapshot
• B.You can create automatic snapshots
• C.You can create an ECS instance from a snapshot
• D.You can manually create snapshots

Which of these log formats is currently supported by Alibaba Cloud's ActionTrail?

• A.XML
• B.Markdown
• C.JSON
• D.HTML

Which of the following descriptions of the principles of Alibaba Cloud SSL certificate private key protection is correct?

• A.Alibaba Cloud Certificate Service keys are loaded into memory in plaintext format ONLY when needed.
• B.Alibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key.
• C.Alibaba Cloud uses the built-in functionality of the SSL certificate service to encrypt and store the private key to ensure the security of your certificate's private key
• D.The plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly

After you enable health checks of Server Load Balancer (SLB), when one backend ECS instance is declared as unhealthy, which of the following statements is correct?

• A.Requests are not forwarded to the ECS instances and you get back a 400 error
• B.Requests are not forwarded to the ECS instances and you get back a 500 error
• C.Requests are forwarded to other normal ECS instances and the unhealthy ECS instance is shutted down
• D.Requests are forwarded to other normal ECS instances. When the faulty ECS instance becomes normal, SLB forwards requests to the ECS instance again