Migration rollback is to restore the network state back before the migration.

• A.TRUE
• B.FALSE

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As shown in the figure, it is assumed that STP is not enabled and a loop has occurred. The possible phenomena include which of the following options?

• A.MAC address table oscillating
• B.A large number of broadcast messages can be received on the Host
• C.Device CPU usage is too high
• D.A loop alarm will appear on the device.

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Which of the following statements regarding the STP configuration is true?

• A.The STP convergence speed is slow, which may cause network interruption. Therefore, disabling STP is a preferred solution.
• B.STP automatically runs by default and therefore does not require configuration.
• C.The RSTP algorithm is simple and reliable and supports fast convergence. Therefore, all switches on the network are configured to work in RSTP mode.
• D.Similar to the implementation of routing protocols, data flows between switches can be adjusted by modifying link costs.
• E.For routine STP configuration, the position of the STP blocked port is controlled to ensure that the blocked port is not located on a backbone link or device.

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To improve Internet egress reliability, an enterprise uses multiple links to connect to different carrier networks. This mode requires attention to both the incoming and outgoing traffic paths. Otherwise, network quality may be affected.

• A.FALSE
• B.TRUE

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

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