Which of the following descriptions of DME architecture characteristics are correct? (Multiple choice)

• A.Support to meet the management of large-scale storage equipment, a single node can manage 16 sets of storage
• B.The system is fully open in the north-south direction, RESTful, SNMIP, ecological plug-ins (such as Ansible, etc.) are provided in the north to connect to the upper system, and open interface protocols such as SNMP and RESTful in the south are connected to storage.
• C.Distributed microservice architecture, high reliability
• D.Can only take over Huawei storage devices

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Which of the following statements about the iSCSI protocol are correct? (Multiple Choice)

• A.The iSCSI initiator encapsulates SCSI instructions and data into TCP packets for transmission.
• B.iSCSI is an IP-based technical standard initiated by Microsoft.
• C.iSCSI is located between SCSI and TCP/IP.
• D.iSCSI enables users to access IP SANs.

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A TV station uses a Huawei hybrid flash storage device in FC networking to store videos. When using it recently, occasionally the video screen freezes. Engineer A will troubleshoot the fault after arriving at the site. Which of the following is the correct troubleshooting method? (Multiple choice)

• A.First check whether the client status is normal, and whether the resource is tight and causing the freeze
• B.Check the storage device failure alarm indicator
• C.Check the open status of the client firewall port
• D.Check whether there is a RAID group degradation alarm

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Data replication technologies used for disaster recovery cannot be implemented on which layer?

• A.Host layer
• B.Network layer
• C.Driver layer
• D.Storage layer

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Which function is not supported by a backup service node?

• A.To transfer data between the client and backup management node
• B.To write the job index information and backup task into the media
• C.To write backup software data and read recovery data
• D.To maintain the index information and index cache information about all jobs on the service node

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