Which of the following statements about Huawei SmartQuota features are correct? (Multiple choice)

Which of the following statements about Huawei SmartQuota features are correct? (Multiple choice)
A . The default directory quota is only a configuration and will not update the usage status statistics
B . The default directory quota refers to the quota items configured at the file system level that take effect for all Quota Trees
C . Huawei Smart Quota technology only supports the configuration of directory quotas on the Quota Tree
D . Directory quota refers to limiting the maximum available space for all files in a directory

Answer: ABCD