An enterprise uses Huawei hybrid flash memory devices as file storage, with a total storage capacity of 300 TB. The company has three business units: online transaction business department A, instant messaging service department B, and archiving business department C.
Which of the following options is correct in the planning of the file system? (Multiple Choice)

A customer plans to build a disaster recovery center that can take over the production business after the production center fails. The customer's business attributes can tolerate a 2-hour business suspension. The disaster recovery center is 50KM away from the production center. The customer requires the production center and the disaster recovery center to adopt the 1 mode, which can provide convenient disaster recovery management at the same time.
Which of the following description of the construction needs of the customer's disaster recovery center is false?

In the backup system, the deduplication technology used in the target-side deduplication is divided into __________ and post-processing deduplication.

Enable the object WORM function in Huawei distributed storage. The administrator finds that an object can be read and deleted, but cannot be modified. Which WORM state is this object in?

When configuring the protection level of the Huawei OceanStor 9000 directory, if the data protection level is set to 4+2. Then the corresponding metadata will generate 3 identical images.