As shown in the figure, the correct description of this network topology is ().

• A.There are 12 conflict domains in this network
• B.There are 6 broadcast domains in this network
• C.There are 6 collision domains in this network
• D.There are 2 broadcast domains in this network

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Which of the following descriptions about wireless devices is correct?

• A.FAT AP generally works with wireless controller
• B.The wireless device has no wired interface
• C.Wireless Controller AC-like at the aggregation layer of the entire network, providing high-speed, Safe and Reliable VLAN business
• D.FIT AP-like independent user access, Authentication, Forwarding services and other functions

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The output information of the sub-interface of a router aggregate port 1 is shown in the figure. Based on this information, which of the following statements are correct? (Multiple Choice)
[Router A]display Interface Eth-Trunk 1.100
Eth-Trunk1.100 current state : UP
Line protocol current state : UP
Last line protocol up time : 2019-03-04 10:22:40 UTC -08 :00
Description: HUAWEI, AR Series, Eth-Trunk1.100 Interface
Route Port, Hash arithmetic : According to SIP-XOR-DIP, Maximal BW: 2G, Current BW: 2G, The Maximum Transmit Unit is 1500
Internet Address is 10.0.12.2/24
IP Sending Frames' Format is PKTFIT ETENT 2.Hardware address 1s 00e0-fc3b-2015
Current system time: 2019-03-04 10:24:29 -08:00
Last 300 seconds input rate 0 bits/sec, 0 packets/sec
Last 300 seconds output rate 0 bits/sec, 0 packets/sec
Realtime 0 seconds input rate 0 bits/sec, 0 packets/sec
Realtime 0 seconds output rate 0 bits/sec, 0 packets/sec
Input: 6 packets, 574 bytes,
Output:7 packets, 638 bytes,
Input bandwidth utilization ;0%
Output bandwidth utilization :0%
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PortName Status Weight
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GigabitEthernet0/0/1 UP 1
GigabitEthernet0/0/2 UP 1
--------------------------------
The Number of Ports in Trunk : 2
The Number of UP Ports in Trunk : 2

• A.The IP address of the sub-interface of the aggregate port is 10.0.12.2/24
• B.The sub-interface number of the aggregate port is 100
• C.The sub-interface of the aggregate port carries VLAN TAG 100 when forwarding data frames
• D.Two links exist on the aggregate port

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What command views exist in the VRP operating platform? (Multiple choice)

• A.Agreement view
• B.User view
• C.Interface view
• D.System view

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In the network shown in the figure below, assuming that all routers enable the OSPF protocol at the same time, which router is the BDR in this network?

• A.Router B
• B.Router D
• C.Router A
• D.Router C

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