In DataWorks table permission system, you can revoke permissions only on the fields whose security level is higher than the security level of your account.
Score 1

Scenario: Jack is the administrator of project prj1. A new team member, Alice (already has an Alibaba Cloud account [email protected]), applies for joining this project with the following permissions: view table lists, submit jobs, and create tables. Which of the following SQL statements is useless:
Score 2

Tom is the administrator of a project prj1 in MaxCompute. The project involves a large volume of sensitive data such as user IDs and shopping records, and many data mining algorithms with proprietary intellectual property rights. Tom wants to properly protect these sensitive data and algorithms. To be specific, project users can only access the data within the project, all data flows only within the project.
What operation should he perform?
Score 2

By integrating live dashboards, DataV can present and monitor business data simultaneously. This data-driven approach enables for well-organized data mining and analysis allowing the user to seize new opportunities that otherwise might remain hidden. It can support wide range of databases and data formats. Which of the following options DataV does not support?

Which of the following is not proper for granting the permission on a L4 MaxCompute table to a user. (L4 is a level in MaxCompute Label-based security (LabelSecurity), it is a required MaxCompute Access Control (MAC) policy at the project space level. It allows project administrators to control the user access to column-level sensitive data with improved flexibility.) Score 2