Huawei's enterprise network NMS eSight has three editions: simplified, standard, and professional. Unlike the standard edition, which of the following features is provided by the professional edition?

• A.Support hierarchical management model.
• B.Provide a database backup tool.
• C.Support management of the WLAN and MPLS VPN.
• D.Support multi-user management.

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Upon VRRP group flapping, the vrrp vrid timer advertise command is executed on the router to increase the interval for sending VRRP packets, and then the display vrrp command is executed repeatedly on the backup device to check the State field. It is found that the value of State remains unchanged. Which of the following statements regarding these operations is true?

• A.The fault cause is not found, and it takes time for the device to recover from the fault.
• B.Status flapping of the backup device is irrelevant to the interval for sending VRRP packets.
• C.A large interval for sending VRRP packets may cause status flapping of the backup device.
• D.A small interval for sending VRRP packets may cause status flapping of the backup device.

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In the fault determining and analysis phase of the structured network troubleshooting process, summarizing the fault, maintenance, and change information can obtain a network fault cause list.

• A.TRUE
• B.FALSE

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Which of the following statements regarding Huawei network optimization service (NOS) is true? (Multiple Choice)

• A.Implements knowledge transfer.
• B.Reduces costs.
• C.Improves the productivity.
• D.Improves network availability and performance.

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Which of the following information can be learned based on the industry background of the project?

• A.Organizational structure of customers
• B.Problems to be resolved by the project
• C.Implementation scope of the project
• D.Common solutions in the industry

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