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

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

QUESTION 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.

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

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

QUESTION 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.

QUESTION 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 ().

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

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

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

QUESTION 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

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

QUESTION 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

QUESTION 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

QUESTION 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.