The system construction of enterprise A is the main and backup centers. Recently, an upgrade is planned. When the business is not busy next week and Saturday, the business will be switched from the primary site to the secondary site, and then the primary site will be upgraded. During the switchover process, Which of the following are correct? (Multiple Choice)

Which of the following commands can be used to view the license information?

pcie can provide the business interface between the control box and the data switch for exchanging control flow and data flow information between the control boxes.

Which of the following objectives with the minimum value can be controlled by Smart QoS policy? (Multiple Choice)

If a user cares about reliability and random write performance, what RAID level would you recommend?