When gNodeB configures the UBBPfw1 baseband board, how many "slot numbers" cannot be configured?

• A.3
• B.2
• C.0
• D.4

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Which of the following half-width 5G baseband boards are supported by the BBU5900 in the V100R015 version?

• A.UBBPfw1
• B.UBBPg2a
• C.UBBPd
• D.UBBPg3

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What are the following layer two protocol of the 5G air interface control plane? (Multiple Choice)

• A.MAC
• B.SDAP
• C.RLC
• D.PDCP

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Which of the following boards cannot be reset by command?

• A.UPEU
• B.UMPT
• C.FAN
• D.UBBP

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What is the length of the TTI scheduled in the 5G NR?

• A.1 frame
• B.1 subframe
• C.1 slot
• D.1 ms

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