<huawei>system-view
[huawei]command-privilege level 3 view user save
The correct statement about the above configuration command is:

• A.Modify the user's authority level to 3, and save the configuration
• B.Modify the permission level of the save command in the user view to 3
• C.Modify the permission level of the user view command to 3, and save the configuration
• D.Modify the authority level of the save command used by a user to 3

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Which information of the data frame is used by the VLANIF interface to determine whether to perform Layer 2 or Layer 3 forwarding? ()

• A.Source IP
• B.Source MAC
• C.Destination port
• D.Destination MAC

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The Huawei tracert diagnostic attack is used to track the forwarding path of data ()

• A.False
• B.True

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Which of the following methods can read data non-blocking in Python's telnetlib?

• A.telnet._read_eager
• B.telnet_Read_all
• C.telnet_read_very_lazy
• D.telnet_read _very_eager

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All four switches run STP, and various parameters adopt default values. If the G0/0/2 port of switch C is blocked and the configuration BPDU cannot be sent through this port, how long will the blocked port in the network enter the forwarding state ()

• A.About 50 seconds
• B.About 3 seconds
• C.About 15 seconds
• D.About 30 seconds

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