What are the interfaces that can be used for the IPPM function?

• A.eNodeb X2 interface
• B.gNodeB S1 interface
• C.gNodb X2 interface
• D.eNodeb S1 interface

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Regarding the DMRS of the PDSCH, what are the correct descriptions of the following? (Multiple Choice)

• A.Divided into Type1 and Type2, the maximum number of supported ports is different.
• B.The maximum number of ports supported by Type 2 is 12
• C.Divided into pre-DMRS and additional DMRS, pre-DMRS is mainly used for high-speed scenes
• D.The maximum number of ports supported by Type1 is 8

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QoS of gNB implements hierarchical congestion management of services by mapping DSCP values.

• A.False
• B.True

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What are the supported subcarrier intervals for 5G RAN2.0 gNodeB cells?

• A.60Khz
• B.120Khz
• C.15Khz
• D.30Khz

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The 5G RAN2.0 version gNodeB supports the default routing domain with a VRF index of 0.

• A.True
• B.False

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