A.Need to make certain modifications to the layer 3 header of the forwarded message, and then forward it

B.Forward according to the Layer 2 header information of the Ethernet frame

C.Layer 2 Ethernet switch works at the data link layer

D.Able to learn MAC. Address

A.True

B.False

A.Any link layer protocol requires ARP protocol to assist in obtaining data link layer identification

B.ARP request message is sent by broadcast

C.ARP packets cannot be forwarded to other broadcast domains

D.ARP reply message is sent by unicast party

A.SWA:
MAC
Address VLAN
Port
MAC-A
MAC-B
MAC-C
10
GEC/0/3
20
GEC/0/3
GEC/0/3
100

B.SWA:
MAC Address
VLAN
Port
MAC-A
MAC-B
MAC-C
10
GEC/O/1
GEC/0/2
GEC/0/3
20
100

C.SWB:
MAC Address VLAN
Port
MAC-A
MAC-B
MAC-C
100
200
100
GEC/0/3
GEC/0/3
GEC/0/1

D.SWB:
MAC Address VLAN
Port
MAC-A
MAC-B
MAC-C
10
GEC/0/3
GEC/0/3
GEC/0/1
20
100

A.B. Authentication

B.C. Authorization

C.Audit

D.D. Accounting)