The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch is compared with the MAC address at the same time. ()

• A.False
• B.True

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The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the F orwarding state, but what is the reason for the no temporary loop? . Shorten the time of ForwarD.Del ay

• A.Shorten the time of ForwarD.Del ay
• B.Edge port
• C.Ensure that there will be no temporary loops through the synchronization mechanism
• D.Speed up port role election

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In the VRP interface, use the command startup saved-configuration backup.cfg. Configure the startup.cfg file to be used at the next startup ()

• A.False
• B.True

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According to the command output as shown in the figure, the correct one in the following description is ().

• A.If you want to change the GigabitEthernet/0/1 port to an Access port, you first need to use the command
  "undo port trunk allow-pass vlan 2 to 4094
• B.GigabitEthernet0/0/1 allows VlAN1 to pass
• C.If you want to change the GigabitEthernet0/0/1 port to an Access port, you first need to use the command "undo port trunk allow-pass vlan all"
• D.GigabitEtheret0/0/1 does not allow VlAN1 to pass

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Which of the following features does the OSPF protocol have? ()*

• A.Prone to routing loops
• B.Support area division
• C.Trigger update
• D.Calculate the shortest path based on the number of hops

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