Which of the following description of the configuration on this switch is correct? (Multiple choice)

• A.The VANIF100 interface will send the received DHCP messages to the external DHCP Server through the relay
• B.Specify the DHCP server group as dhcpgroup1 for the VLAN100 interface
• C.First, you need to create a DHCP server group and add a DHCP server to the server group
• D.To configure the DHCP server and DHCP relay, DHCP must be enabled globally

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OSPFv2 is an IGP running on an IPv4 network, OSPFvV3 is an ICP running on an IPv6 network. OSPFv3 and OSPFv2 have the same message types, including Hallo messages, DD messages, LSU messages, LSU messages and SACK messages.
Regarding OSPFv3 packets, which of the following statements is correct?

• A.OSPFv3 uses the link-local address as the source address of the sent message, and the message can be forwarded outside the range of the originating link
• B.OSPFv3 uses IPv6 multicast addresses FFO2::5 and FFO2:.6 to send OSPFv3 packets
• C.OSPFv3 uses the authentication field in the header of the message to complete message authentication
• D.The He11o packet of OSPFv3 carries the IPv6 address prefix list of the router interface

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When configuring the DHCP Relay function on the device, the VLANIF interface of the relay connected to the client must be bound to the DHCP server group, and the bound DHCP server group must be configured with the proxy DHCP server IP address.

• A.FALSE
• B.TRUE

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According to this figure, which of the following is the correct description of the IPv6 routing information calculated by the R4 router through IS-IS?

• A.R4 has 2 unequal IS-IS default routes
• B.R4 has 2 equal-cost IS-IS default routes
• C.R4 has 1 IS-IS default route
• D.R4 has no IS-IS routing entry

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A network engineer entered the following information when troubleshooting OSPF faults. Based on this, you can judge what causes the adjacency relationship to fail to be established normally?

• A.Inconsistent area type
• B.Authentication passwords do not match
• C.interfaceIPInconsistent address masks
• D.Hell. Inconsistent message sending interval

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