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Which two of these are characteristics of the 802.1Q protocol?()

发布日期:2020-04-13

Which two of these are characteristics of the 802....
A

it is a layer 2 messaging protocol which maintains vlan configurations across network.

B

it includes an 8-bit field which specifies the priority of a frame.

C

it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.

D

it modifies the 802.3 frame header,and thus requires that the FCS be recomputed.

E

it is a trunking protocol capable of carring untagged frames.

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