The InfoScanner feature through which way to send the file path that needs to be checked and killed to the antivirus proxy server?

• A.Deduplication
• B.Concurrency
• C.Polling
• D.Snapshot

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A disaster recovery system can copy service data to a local or remote data center for protection.
In which scenarios the disaster recovery system cannot restore data? (Multiple Choice)

• A.Misoperation
• B.Breakdown of the service data center
• C.Disk failure
• D.Virus attack

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Among SATA SSD, SAS SSD, and NVMe SSD, NVMe SSD supports the highest IOPS.

• A.False
• B.True

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A customer unit has purchased nine OceanStor9000 storage nodes. When planning and deploying, it requires any three hard disks and one storage node to fail, which does not affect data integrity, and the overall storage space utilization rate is not less than 80%. Which of the following balance ratio appropriate?

• A.16+3:1
• B.8+1
• C.6+3:1
• D.6+3

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LAN-base backup networking is one of the most common networking modes.
Which are advantages of LAN-base backup networking? (Multiple Choice)

• A.The backup performance is good.
• B.The performance of production hosts is not affected.
• C.The existing network is fully utilized, reducing costs.
• D.Both control data and backup data are transmitted through the service network.

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