The network administrator configures the Huawei router RTA as shown in the figure. If a user needs to be authenticated in the authentication domain "huawei", the correct description below is ().
[RTA]aaa
[RTA-aaa]domain Huawei
RTA-aaa-domain-huawei]authentication-s cheme aul
[RTA-aaa-domain-huawei]authentication-scheme au2

• A."authentication-scheme au2" authentication will be used, if "au2" is registered, "aul" authentication will be used
• B."authentication-scheme aul" authentication will be used, if "au1" is deleted, "au2" authentication will be used
• C.Will use "au2" authentication and will use "authentication-scheme au1" authentication
• D.Will use "authentication-scheme au2" authentication

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On Huawei routers, what is the default value of the OSPF protocol internal routing priority?

• A.0
• B.20
• C.10
• D.30

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What is the full name of the general routing platform VRP?

• A.Versatile Redundancy Platform
• B.Versatile Routing Protocol
• C.Versatile Routing Platform
• D.Virtual Routing Platform

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Which statement about SNMP protocol is correct?

• A.SNMP protocol uses multicast to send management messages
• B.The SNMP protocol only supports the sending of flash management messages on the Ethernet link
• C.SNMP uses ICMP as the network layer protocol
• D.SNMP uses UDP as the transport layer protocol

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Which of the following descriptions of OSPF areas are correct? (Multiple choice)

• A.The number range of the area is from 0.0.0.0 to 255.255.255.255
• B.All networks should be declared in zone 0
• C.Before configuring the OSPF area, an IP address must be configured for the loopback interface of the router
• D.The number of the backbone area cannot be 2

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