In order to give full play to the performance and function of the system, which of the following operations must be strictly observed (multiple choice)
A.
Strictly limit user roles to ensure (to ensure that users who belong to different roles only have the minimum operation permissions to access resources)
B.
Strictly implement the backup plan and regularly back up system data
C.
It is strictly forbidden to install or run non-standard software (such as firewalls, etc.) on the deployed equipment
D.
In case of emergency, maintenance personnel should immediately report back to the headquarters or contact technical support directly.
Chosen Answer:
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