Which of the following technologies are able to quickly obtain valuable information from a variety of data types in a short period of time from a collection of vast amounts of data?

Host is a computing system consisting of hard drives or file system that can provide data access and storage.

The following description of DAS is incorrect:

The RTO in the disaster recovery system measurement index refers to the point in time when the system and data must be recovered after the disaster begging.

In data backup and recovery, application testing and data analysis scenarios. HyperClone supports up to 1 master: 8 slave LUN mode. The knowledge points come from HCNA-Storage V3.0 textbooks and official product documentation.
The following descriptions for SAN and NAS are correct: (multiple choices)