A.correct

B.error

A.3 is management level

B.The smaller the value, the higher the user's priority

C.The smaller the value, the lower the user's priority

D.0 is the access level

E.2 is device level

F.1 is the monitoring level

A.Router solicitation message

B.Neighbor announcement message

C.Neighbor solicitation message

D.router advertisement message

A.If the route to the same destination network segment has multiple sources, then only the route with the largest metric value is written into the routing table

B.If the route to the same destination network segment has multiple sources, then only the route with the highest Preference value will be written into the routing table

C.If the same routing protocol finds multiple paths to the same destination network segment, then these routes cannot all be written into the routing table

D.If the same routing protocol finds multiple paths to the same destination network segment, then these routes may all be written into the routing table

E.If the route to the same destination network segment has multiple sources, only the route with the smallest metric value is written into the routing table

F.If the route to the same destination network segment has multiple sources, then only the route with the smallest Preference value will be written into the routing table

A.The data of the network layer is called segment (Segment)

B.The data of the transport layer is called a frame (Frame)

C.The data at the data link layer is called a packet (Packet)

D.The data of the physical layer is called bit (Bit)