It is necessary to add some video sites to the urban roads, and the wired transmission pipelines have already covered this area. Considering the project cost and construction difficulty, which network access method is appropriate? (Multiple choice)

Common open forms of data centers include prismatic data centers and modular data centers.

In front-end intelligence, different modules correspond to different functions.
Which of the following statements is correct?

If the two intelligent vision platforms are in a superior-subordinate relationship, the subordinate platform actively initiates registration to the superior platform, and then pushes the directory and device information under its jurisdiction after the superior authentication.

The resolution of a camera is 1080P, the code rate is 4Mbps, it needs to be stored for 30 days, and it needs () storage space.