单项选择题

Which of the following protocols would a multilayer switch use to learn the IP address of a directly connected device？（）

A.ARP
B.BOOTP
C.Inverse-ARP
D.DNS

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单项选择题

A.20
B.21
C.22
D.23

单项选择题

Given the following routing table entries， which of the following will the next-hop address be for a packet destined for the address 192.168.1.203？（）

A.77.0.5.5
B.40.40.0.254
C.66.40.90.121
D.72.40.91.1

多项选择题

A.1000Base-CX
B.1000Base-TX
C.1000Base-SX
D.10Base-T
E.1000Base-T
F.1000Base-LX