A.Both GPON and EPON use single-fiber bidirectional data transmission. EPON uses 1490nm downstream wavelength to transmit data, and GPON uses 1550nm downstream wavelength to transmit data.

B.GPON provides higher downstream bandwidth

C.GPON uses the extended OAM protocol to manage ONUs

D.The GPON protocol standard was proposed by IEEE, and the EPON protocol standard was proposed by ITU-T

A.Tree type

B.Mesh type

C.Ring type

D.Chain type

A.True

B.False

A.There is no logical connection between VP and VC.

B.A VC can include multiple VPs;

C.A VP can include multiple VCs;

D.VPI occupies the same number of bits in all cells, and the same is true for VCI;

A.MA5680T each board can provide 4-8 GPON ports, which can support 1:64 split ratio

B.HG8245 supports 256 tconts

C.The fiber length of the PON port must be within 20KM

D.SCUL supports optical and copper integrated access