ACA-Developer exam

1 he server uploads the resume to OSS Which of the following methods can be used to upload objects to OSS without requiring Step 3?A . Simple UploadB . Form UploadC . Multipart UploadD . Append UploadView AnswerAnswer: D

A mobile application developer intends to use Alibaba Cloud Object Storage Service (OSS) to store the end user data for their app, and to ensure data isolation between each user of the app, to prevent one user from obtaining another's data. Which method can be done to meet these requirements?A...

Assume that a company uses ApsaraDB for PolarDB. The company commonly queries users based on their basic information, including: addresses, company names, and ID numbers. In this scenario, what is the best practice for creating a database index (or indexes)?A . Create a b-tree index on each column to be...

Company A has a large number of files store in Alibaba Cloud OSS that need to be deleted (numbering in the tens of thousands). What is the fastest, easiest way to delete these files?A . Manually delete them one by oneB . Configure a life cycle rule that matches the...

On which operating systems can you install Alibaba Cloud command line tools? (Number of correct answers: 3)A . WindowsB . LinuxC . macOSD . AndroidView AnswerAnswer: A,B,C Explanation: https://www.alibabacloud.com/blog/how-to-manage-your-alibaba-cloud-linux-server-from-the-command-line-interface-%28cli%29_593878

A developer accesses logs in a Log Service Logstore via the API. The error code returned by the server is 404. Which of these could be the cause?A . The log project (Project) does not existB . The requested digital signature does not matchC . Server internal errorD . Server...

Which of the following statements are correct, with regard to Alibaba Cloud Log Service? (Number of correct answers: 3)A . As an agent for collecting logs, Logtail can collect logs from existing system log files in a non-intrusive mannerB . The Log Service frontend service adopts an LVS + NGINX...