問題1
Which is the choice of clock synchronization mode for C-Band low-frequency networking gNodeB base station?
Which is the choice of clock synchronization mode for C-Band low-frequency networking gNodeB base station?
正確答案: C
問題2
When a CPE device is upgraded in the near end, the firmware upgrade of the primary and standby areas can be completed at the same time as the "Update" upgrade operation.
When a CPE device is upgraded in the near end, the firmware upgrade of the primary and standby areas can be completed at the same time as the "Update" upgrade operation.
正確答案: B
問題3
Compared to BBU5900 and 3910, which slot has not changed the actual position of the slot number?
Compared to BBU5900 and 3910, which slot has not changed the actual position of the slot number?
正確答案: D
問題4
Which of the following is the default near-end maintenance address for gNB UMP boards?
Which of the following is the default near-end maintenance address for gNB UMP boards?
正確答案: B
問題5
In the NSA networking option3 series scenario, gNodeB must configure an X2 interface.
In the NSA networking option3 series scenario, gNodeB must configure an X2 interface.
正確答案: B
問題6
The ratio of upstream and downstream subframes in 5G RAN2.0 gNodeB cells supports SA5.
The ratio of upstream and downstream subframes in 5G RAN2.0 gNodeB cells supports SA5.
正確答案: A
問題7
In the NSA network test using Probe, it was found that the MAC layer rate of LTE upstream is 20Mbps, but the PDCP layer rate is 0
In the NSA network test using Probe, it was found that the MAC layer rate of LTE upstream is 20Mbps, but the PDCP layer rate is 0
正確答案: B
問題8
The maximum transmit power of NRDUCELTRP in the gNode configuration is BBU RF power.
The maximum transmit power of NRDUCELTRP in the gNode configuration is BBU RF power.
正確答案: A
問題9
What is the correct description of the fiber straight-pull scheme for CRAN fronthaul?
What is the correct description of the fiber straight-pull scheme for CRAN fronthaul?
正確答案: A,B
問題10
NR began to support the base station version of the UBBPg half-width board, which of the following versions started?
NR began to support the base station version of the UBBPg half-width board, which of the following versions started?
正確答案: B
問題11
Which of the following is not a BBU veneer?
Which of the following is not a BBU veneer?
正確答案: D
問題12
QoS of gNB implements hierarchical congestion management of services by mapping DSCP values.
QoS of gNB implements hierarchical congestion management of services by mapping DSCP values.
正確答案: B
問題13
When port negotiation for a X2 interface SCTP link, the local and peer can share the same port number.
When port negotiation for a X2 interface SCTP link, the local and peer can share the same port number.
正確答案: B
問題14
Which of the following two cells has a large interference from PBCH?
Which of the following two cells has a large interference from PBCH?
正確答案: C
問題15
The DCDU-12B provides DC input to various components within the cabinet. When the number of configured RFUs exceeds the number, two DCDU-12Bs need to be configured.
The DCDU-12B provides DC input to various components within the cabinet. When the number of configured RFUs exceeds the number, two DCDU-12Bs need to be configured.
正確答案: C