单项选择题

A.Several processes can exist simultaneouslyB.Requires ……

Which of the following characteristics applies only to OSPFv3 and not to OSPFv2？（）

A.Several processes can exist simultaneously
B.Requires direct connectivity from the backbone area to all other areas
C.Has the same packet types
D.Can support multiple subnets on a single link
E.Uses a hierarchical structure divided into areas
F.Adjacencies formed with neighbors

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A.Filter unneeded BGP routes
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B.Attacker connects rogue server initiating DHCP requests
C.Attacker connects rogue server replying to DHCP requests
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A.Providing technical customer support
B.Changing configurations
C.Updating software
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