Which of the following statement about Python is incorrect?

• A.can be used for operation and maintenance of automation scripts, Artificial Intelligence, Data science and many other fields
• B.Have a clear grammatical structure, simple and easy to learn, colleagues run efficiently
• C.Is a fully open source high-level programming language
• D.Has a rich third-party library

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An existing switch is connected to a designated port through a port, but the port does not forward any packets, but can monitor network changes by receiving BPDUs, then what is the role of the port?

• A.Root port
• B.Alternate port
• C.Designated port
• D.Disable port

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Which of the following statements about router-on-a-stick are correct? (Multiple Choice)

• A.On the switch, configure the port connected to the router as a Trunk port, and allow frames of the relevant VLAN to pass
• B.One physical connection per VLAN
• C.Use only one physical link connection between the switch and the router
• D.Need to create a sub-interface on the router

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On the VRP platform, what is the role of the command "interface vlanit <vlan-id>" ?

• A.Configure VLAN for a port
• B.Create a VLAN
• C.No such command
• D.Create or enter VLAN virtual interface view

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What type of IPv6 address FE80: 2E0: FCFF: FE6F: 4F36 belongs to?

• A.Anycast address
• B.Multicast address
• C.Link local address
• D.Global semicast address

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