In the data backup application scenario, compared with physical tape libraries, which of the following descriptions belong to the characteristics of disk backup media? (Multiple choice)

• A.Low management and maintenance costs.
• B.The unit storage cost is lower than that of physical tape.
• C.It can realize the separation of the data storage disk and the device for reading and writing the disk, and realize the offline storage of the data.
• D.High backup and recovery performance.

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Initiate quiescing of the application before the snapshot, and then trigger the hardware storage snapshot to create an application-consistent snapshot copy. Data is backed up through the snapshot backup copy, eliminating the data backup time window, completely without interrupting the production system business, and achieving the remote storage of data, which improves the reliability of the data.

• A.False
• B.True

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Regarding the CIFS sharing that has added new functions to the Huawei Oceanstor 9000C30 version, which of the following statements are correct? (Multiple choice)

• A.When the client adopts the SMB2.0/2.1/3.0 protocol, when file copying is performed inside Oceanstor 9000, it does not need to go through the client, and it can be done directly in the system at high speed.
• B.Oceanstor 9000 has SMB3 MultichanneL enabled by default
• C.When the client uses the SMB3.0 protocol, if the client has two or more GE/10GE/old network ports of the same type, the client will establish multiple connection channels on Oceanstor 9000

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Which of the following ports is used for firewall software upgrade and advanced debugging in SX6018?

• A.I2C port
• B.Management network port
• C.USB port
• D.Console port

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Which of the following are the disadvantages of choosing cloud storage as a backup medium?

• A.Need high bandwidth network
• B.Capacity is not easy to expand
• C.Not easy to deploy
• D.Backup media needs to be managed

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