If a company uses an OLTP database, which migration strategy is suitable for the company's Smart Tier?

• A.No migration
• B.Migrate to the low-performance tier
• C.Automatic migration
• D.Migrate to the high-performance tier

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Regarding the characteristics of DAS, which of the following descriptions is correct? (Multiple choice)

• A.When maintaining the internal DAS, the system needs to be powered off
• B.When multiple hosts connect to DAS, they can provide services of different service levels
• C.If the DAS with tight storage space can share the remaining space of the DAS with excess storage resources
• D.The number of ports that can be connected to the host is limited

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The address of the sector is also called the CHS address, and the addressing sequence is?

• A.Sector-head-cylinder
• B.head-cylinder-sector
• C.Cylinder-head-sector
• D.Cylinder-sector-head

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Xiao Wang, an employee of a company, serves as the administrator of the company's storage system. When he uses two sets of OceanStor5500 V3 as a disaster recovery solution, he only needs one of the OceanStor5500 V3 configuration data to remote replication software.

• A.True
• B.False

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Software RAID realizes unified management of disks through RAID card.

• A.False
• B.True

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