質問36
The (radio) 10G GPON system uses XGEN frames to encapsulate data, and the PORT ID is defined in the
XGEN header as () bits.

質問37
(Single choice) The following statement about defense MAC Spoofing is wrong

質問38
In the evolution of EPON to 10g EPON, a smooth transition is achieved at the local end by adding AWDM
WDM module, and Odn coexists.

質問39
The maximum spectroscopic ratio supported by 10G EPON is?

質問40
The ascending wavelength of the (radio) 10G EPONE is?

質問41
(Single choice) When planning qos, it is necessary to plan reasonably according to the business, and adopt the
() scheduling mode for high-priority businesses.

質問42
The number of users under the OLT can also determine whether the VLA is single-layer or dual-layer VLA.
Single-layer VLANs can be used when the number of users is small, and dual-layer VLANs must be used
when the need to distinguish services and the number of users is second to ().

質問43
(Radio) Regarding multicast, the following description is incorrect

質問44
(Multi-select) Query ppPOE simu-lation results on the MDU side as follows
From the query results, it can be judged ()

質問45
(Radio) 10G GPON system downlink wavelength is

質問46
(Radio) In the FTTB/C scenario, ONU is used as an AG device to access the phone, and there is no possible
cause of sound failure for SIP protocol off-hook

質問47
The Class D multicast address range is from 224. 0 0 0 to 238. 255 255 255

質問48
(Radio) When the 0LT global or VLAN service template enables the PITP switch, the service port allows the
upstream packet to be carried, the Vendor tag switch, and the user to carry the vendor upstream packet In the
case of tarf information, the following statement regarding olts to PITP message processing strategies is
correct

質問49
(Multiple select) When there is a backbone fiber break or OLT does not detect the expected optical signal
(L0S) alarm, the possible cause is that

質問50
Type B protection provides redundant protection for both OLT PON ports and backbone fibers when OLT or
OLT PON If the port or trunk fiber fails, manually switch to another – luguang.