[2024年04月]更新のHuawei H35-580_V2.0実際のブレーン知能問題集
合格できるH35-580_V2.0試験更新されたH35-580_V2.0試験問題集PDFを獲得2024年更新
質問 # 34
Which of the following is not the cause of cell unavailability due to system faults (specified using
N.Cell.Unavail.Dur.System)?
- A. Board faults
- B. CPRI link faults
- C. Faults on an RF module's TX or RX channels
- D. Blocking cells by using MML commands
正解：D
解説：
Explanation
According to the HCIA-5G V2.0 Exam Outline, cell unavailability due to system faults (specified using
N.Cell.Unavail.Dur.System) is caused by factors such as CPRI link faults, board faults, and faults on an RF module's TX or RX channels, which correspond to options A, C, and D. Blocking cells by using MML commands is not a system fault, but a manual operation, which corresponds to option B.
質問 # 35
Which of the following spectrum sharing technologies can be used in the 3.5 GHz+2.1 GHz uplink and downlink decoupling/super uplink architecture?
- A. 3.5 GHz NR and 2.1 GHz LTE only share the uplink spectrums.
- B. 2.1 GHz NR and 2.1 GHz LTE share both the downlink and uplink spectrums.
- C. 2.1 GHz NR and 2.1 GHz LTE only share the uplink spectrums.
- D. 3.5 GHz NR and 2.1 GHz LTE share both the downlink and uplink spectrums.
正解：A
解説：
Explanation
According to the HCIA-5G V2.0 Exam Outline, the 3.5 GHz+2.1 GHz uplink and downlink decoupling/super uplink architecture uses spectrum sharing technologies such as Dynamic Spectrum Sharing (DSS) and Spectrum Sharing (SS) to enable 3.5 GHz NR and 2.1 GHz LTE to share only the uplink spectrums, while the downlink spectrums are used exclusively by each technology.
質問 # 36
Which of the following statistics are provided by the Probe's BLER statistics menu?(Select All that Apply)
- A. Modulation scheme
- B. Retransmission ratio
- C. DRBLER
- D. DIBLER
正解：B、C、D
解説：
Explanation
According to the Probe User Guide (V100R019C10_01) (PDF)-EN, the Probe's BLER statistics menu provides the following statistics:
DIBLER: Downlink Initial Block Error Rate, which is the ratio of the number of erroneous downlink transport blocks to the total number of downlink transport blocks received by the UE in the first transmission.
DRBLER: Downlink Residual Block Error Rate, which is the ratio of the number of erroneous downlink transport blocks to the total number of downlink transport blocks received by the UE after all retransmissions.
Retransmission ratio: The ratio of the number of retransmitted downlink transport blocks to the total number of downlink transport blocks received by the UE.
The Probe's BLER statistics menu does not provide the modulation scheme as a statistic. The modulation scheme is a parameter that determines the modulation and coding scheme (MCS) used for data transmission on the physical downlink shared channel (PDSCH). The modulation scheme can be QPSK, 16QAM, 64QAM, or
256QAM. The modulation scheme can be displayed on the Probe's PDSCH configuration menu or PDSCH demodulation menu.
Therefore, the correct answer is A, B, and D.
質問 # 37
In an intra-frequency reselection procedure, which message contains the rangeToBestCell parameter?
- A. SIB1
- B. SIB3
- C. SIB4
- D. SIB2
正解：D
解説：
Explanation
According to the 38.331 RRC, SIB2 is the message that contains the rangeToBestCell parameter, which is used for intra-frequency cell reselection. The rangeToBestCell parameter defines a threshold for cell ranking based on RSRP (Reference Signal Received Power). A UE may only reselect to a cell if its RSRP exceeds that of the serving cell by at least rangeToBestCell dB.
質問 # 38
The PCFICH and PHICH channels have been deleted from the physical layer in 5G compared with LTE.
- A. False
- B. True
正解：B
解説：
Explanation
According to the 5G NR Protocol Structure Changes - An Overview, the PCFICH and PHICH channels have been deleted from the physical layer in 5G compared with LTE, because they are no longer needed due to the flexible frame structure and numerology of 5G NR.
質問 # 39
Which of the following statements about Huawei AAUs are correct?(Select All that Apply)
- A. AAUs have an operating voltage of -48 V DC.
- B. They support LTE-NR dual-mode on some frequency bands.
- C. 64T64R AAUs provide higher coverage gains than 32T32R AAUs.
- D. They support GSM-NR dual-mode on some frequency bands.
正解：A、B、C
解説：
Explanation
According to the Huawei's Latest AAU Products, Huawei's AAUs have an operating voltage of -48 V DC and support LTE-NR dual-mode on some frequency bands, such as C-band and sub-3 GHz bands. The article also states that Huawei's new-generation 64T64R AAUs provide higher coverage gains than conventional 32T32R AAUs by using ELAA (extremely large antenna array) technology. Huawei's AAUs do not support GSM-NR dual-mode on any frequency band, as GSM is not a compatible RAT with NR.
質問 # 40
The UPEU in the BBU5900 needs to be connected to two circuit breakers.
- A. True
- B. False
正解：B
解説：
Explanation
According to the BBU Quick Installation Guide (V100R005C10_04) (PDF)-EN, the UPEU in the BBU5900 needs to be connected to only one circuit breaker, not two. The UPEU is a universal power and environment interface unit that provides power supply and environment monitoring functions for other boards in a subrack.
The UPEU converts -48 V DC to +12 V DC and distributes the power to other boards. The UPEU also collects alarms from the subrack and reports them to the main processing board. The UPEU can be installed in slot 0 or slot 10 of the BBU5900 subrack. The UPEU needs to be connected to a -48 V DC power cable that is connected to a circuit breaker in the cabinet. The circuit breaker must have a rated current of 16 A or higher.
Therefore, the correct answer is B.
質問 # 41
Which of the following AAUs support vertical beamforming?(Select All that Apply)
- A. 32T32R
- B. 8T8R
- C. 4T4R
- D. 64T64R
正解：A、D
解説：
Explanation
According to the 5G Beamforming: An Engineer's Overview, 32T32R and 64T64R AAUs support vertical beamforming. AAU stands for Active Antenna Unit, which is a type of antenna that integrates RF and antenna functions in one unit. Vertical beamforming is a technique that uses multiple antenna elements in a vertical array to form beams in different elevation angles. 32T32R and 64T64R AAUs have enough antenna elements to support vertical beamforming, while 8T8R and 4T4R AAUs do not have enough antenna elements to support vertical beamforming effectively.
質問 # 42
Which of the following boards in a base station support CPU usage measurement?(Select All that Apply)
- A. DUPEU
- B. DUMPT
- C. DFAN
- D. DUB8P
正解：A、B、D
解説：
Explanation
According to the Career Certification - Huawei Enterprise, DUB8P, DUPEU, and DUMPT are boards in a base station that support CPU usage measurement, which correspond to options B, C, and D. DFAN is a fan board that does not support CPU usage measurement, which corresponds to option A.
質問 # 43
In SA networking, which of the following messages is used to deliver PRACH power control parameters to UEs?
- A. SIB1
- B. MIB
- C. RRC reconfiguration
- D. SIB2
正解：D
解説：
Explanation
According to the 5G NR Uplink Power Control Procedure, SIB2 is the message that contains the PRACH power control parameters, such as msg3-Alpha, p0-NominalWithoutGrant, and p0-AlphaSets. These parameters are used by the UE to determine the transmit power of the PRACH preamble.
質問 # 44
Which of the following items can be used for measurement evaluation in idle mode during coverage problem analysis?
- A. SRS
- B. CSI-RSRP
- C. OPMI
- D. SS-RSRP
正解：D
解説：
Explanation
According to the HCIA-5G V2.0 Exam Outline, SS-RSRP is the reference signal received power of the synchronization signal block (SSB) in NR systems. It can be used for measurement evaluation in idle mode during coverage problem analysis, which corresponds to option D. OPMI is an indicator of uplink interference power measurement, CSI-RSRP is the reference signal received power of the channel state information reference signal (CSI-RS), and SRS is the sounding reference signal. These indicators are used for measurement evaluation in connected mode, not idle mode, which correspond to options A, B, and C.
質問 # 45
In the cell search process in 5G SA, a UE completes frame synchronization after reading the SS.
- A. True
- B. False
正解：B
解説：
Explanation
According to the 5G SA Cell Search & Network Entry Matrix, a UE completes frame synchronization after reading the MIB, not the SS. The SS (Synchronization Signal) is used for initial detection and coarse timing synchronization, but it does not provide enough information for frame synchronization. The MIB (Master Information Block) is part of the SSB (Synchronization Signal Block) and contains essential system information, such as system frame number and subcarrier spacing, which are needed for frame synchronization.
質問 # 46
Handover execution failures can use the counters to collect failure reasons in SA networking.
- A. False
- B. True
正解：B
解説：
Explanation
According to the HCIA-5G V2.0 Exam Outline, handover execution failures can use the counters to collect failure reasons in SA networking, which corresponds to option A. The counters include
N.HO.Exec.Fail.RadioResFail, N.HO.Exec.Fail.TAExceed, N.HO.Exec.Fail.NoRespFromUE, and
N.HO.Exec.Fail.Other.
質問 # 47
Which of the following logical channels can be mapped to different transport channels?
- A. DCCH
- B. BCCH
- C. PCCH
- D. CCCH
正解：A、C、D
解説：
Explanation
According to the 5G NR Channels, the following logical channels can be mapped to different transport channels in the downlink and/or uplink:
Common Control Channel (CCCH): It can be mapped to Downlink Shared Channel (DL-SCH) or Uplink Shared Channel (UL-SCH).
Dedicated Control Channel (DCCH): It can be mapped to DL-SCH or UL-SCH.
Paging Control Channel (PCCH): It can be mapped to Paging Channel (PCH) or DL-SCH.
Broadcast Control Channel (BCCH): It can be mapped to Broadcast Channel (BCH) or DL-SCH.
質問 # 48
Which of the following events is used by the gNodeB to trigger a blind redirection procedure?
- A. A2
- B. A4
- C. A1
- D. A3
正解：D
解説：
Explanation
According to the Blind handover or blind redirection method and system, A3 is the event that is used by the gNodeB to trigger a blind redirection procedure. A3 is defined as "neighbour becomes offset better than serving" in 3GPP TS 38.331. When the gNodeB detects that the UE's signal quality on a neighbouring cell is better than that on the serving cell by a certain offset, it can initiate a blind redirection procedure to switch the UE to the neighbouring cell without requiring measurement reports from the UE.
質問 # 49
Which of the following problems may cause SCTP link disconnection over the N2 interface?(Select All that Apply)
- A. Routes are not configured.
- B. PLMN configurations are incorrect.
- C. The SCTP port configuration is incorrect.
- D. Physical ports are faulty.
正解：A、B、C、D
解説：
Explanation
According to the Troubleshooting Guide for Huawei 5G Base Stations, the possible causes of SCTP link disconnection over the N2 interface are as follows:
Routes are not configured: If the routes between the base station and the core network are not configured correctly, the SCTP link cannot be established or may be disconnected.
PLMN configurations are incorrect: If the PLMN configurations on the base station and the core network do not match, the SCTP link cannot be established or may be disconnected.
Physical ports are faulty: If the physical ports on the base station or the core network are faulty, such as damaged cables, loose connectors, or port errors, the SCTP link cannot be established or may be disconnected.
The SCTP port configuration is incorrect: If the SCTP port configuration on the base station or the core network is incorrect, such as using a reserved port number or a conflicting port number, the SCTP link cannot be established or may be disconnected.
質問 # 50
What are characteristics of eCPRI links?(Select All that Apply)
- A. They require AAU support.
- B. They are based on the TDM mechanism.
- C. They are based on the IP mechanism.
- D. They require dock synchronization.
正解：A、C、D
解説：
Explanation
According to the eCPRI Specification V2, eCPRI links have the following characteristics:
They require clock synchronization: eCPRI links use Ethernet as the transport layer, which does not provide inherent synchronization. Therefore, eCPRI links require external clock synchronization methods, such as IEEE 1588v2 Precision Time Protocol (PTP) or Synchronous Ethernet (SyncE).
They are based on the IP mechanism: eCPRI links use IP as the network layer, which provides routing and addressing functions for eCPRI messages. eCPRI links can use either IPv4 or IPv6 protocols.
They require AAU support: eCPRI links connect between Radio Equipment Control (REC) and Radio Equipment (RE) in a base station. AAU (Active Antenna Unit) is a type of RE that integrates RF and antenna functions in one unit. Therefore, eCPRI links require AAU support to enable flexible functional split options and reduce fronthaul bandwidth requirements.
eCPRI links are not based on the TDM mechanism because they do not use fixed time slots to transmit data.
Instead, they use variable-length packets to transmit data according to different service requirements.
質問 # 51
Which of the following is not a function of the 5G RRC layer?
- A. Radio resource management
- B. Encryption, decryption, and integrity protection
- C. Handover and mobility
- D. Access control
正解：B
解説：
Explanation
According to the HCIA-5G V2.0 Exam Outline, encryption, decryption, and integrity protection are functions of the PDCP layer, not the RRC layer. The RRC layer is responsible for radio resource management, access control, handover and mobility, among other functions.
質問 # 52
Under the same gNodeB, an NR TDD cell supports the same maximum number of RRC_CONNECTED UEs as an NR FDD cell.
- A. True
- B. False
正解：B
解説：
Explanation
According to the Radio Resource Control, the maximum number of RRC_CONNECTED UEs depends on the number of available C-RNTIs (Cell Radio Network Temporary Identifiers) in a cell. The number of C-RNTIs is limited by the size of the RNTI field in the DCI (Downlink Control Information) format. For NR TDD cells, the RNTI field size is 16 bits, which allows up to 65,536 C-RNTIs. For NR FDD cells, the RNTI field size is
14 bits, which allows up to 16,384 C-RNTIs. Therefore, an NR TDD cell can support more RRC_CONNECTED UEs than an NR FDD cell under the same gNodeB.
質問 # 53
In the MR-DC architecture, which of the following factors affect the data split on a base station?(Select All that Apply)
- A. X2 latency
- B. PDCP layer buffer
- C. RLC layer buffer
- D. Air interface latency
正解：A、B、D
解説：
Explanation
According to the 5G-NR (EN-DC) Bearer Concept, in MR-DC (Multi-Radio Dual Connectivity) architecture, data split on a base station can be affected by the following factors:
PDCP layer buffer: The PDCP layer buffer stores user plane data before sending it to lower layers. The buffer size and occupancy can affect how data is split between LTE and NR bearers.
X2 latency: The X2 latency is the delay between LTE and NR base stations over the X2 interface. The X2 latency can affect how data is split between LTE and NR bearers by causing reordering or duplication of packets.
Air interface latency: The air interface latency is the delay between base stations and user equipment over the air interface. The air interface latency can affect how data is split between LTE and NR bearers by causing reordering or duplication of packets.
The RLC layer buffer does not affect data split on a base station because it is located below the PDCP layer where data split occurs.
質問 # 54
Which of the following factors does not need to be considered during PUSCH power calculation?
- A. MCS index of the PUSCH
- B. Number of PUSCH RBs
- C. SCS configuration for the PUSCH
- D. Number of PUSCH symbols in the time domain
正解：A
解説：
Explanation
According to the 5G NR Uplink Power Control Procedure, MCS index of the PUSCH is not a factor that needs to be considered during PUSCH power calculation. The MCS index determines the modulation and coding scheme of the PUSCH, but it does not affect the transmit power. The other factors, such as number of PUSCH RBs, SCS configuration for the PUSCH, and number of PUSCH symbols in the time domain, are all involved in the PUSCH power calculation formula.
質問 # 55
Which of the following statements about throughput-related indicators are correct?(Select All that Apply)
- A. The actual cell throughput can be obtained by dividing the total data transmission throughput within a measurement period by the time when data is transmitted in the cell.
- B. Throughput is more accurate if the last small packet of each data transmission burst and its transmission duration are added.
- C. The uplink/downlink average UE throughput is used to evaluate the user-perceived rate.
- D. The average throughput of a single UE is obtained by dividing the data volume transmitted or received by the UE by the actual data transmission time.
正解：A、C、D
解説：
Explanation
According to the HCIA-5G V2.0 Exam Outline, the statements in options A, B, and C are correct descriptions of throughput-related indicators, which correspond to options A, B, and C. The statement in option D is incorrect because adding the last small packet of each data transmission burst and its transmission duration will reduce the accuracy of throughput measurement.
質問 # 56
Which of the following counters can be measured at the board level?
- A. Transmission interface measurement
- B. CCE usage
- C. CPU usage
- D. Number of paging messages
正解：A、C
解説：
Explanation
According to the Career Certification - Huawei Enterprise, CPU usage and transmission interface measurement are counters that can be measured at the board level, which correspond to options A and B. They reflect the performance and status of the boards in a base station. Number of paging messages and CCE usage are counters that can be measured at the cell level, which correspond to options C and D. They reflect the utilization of radio resources in a cell.
質問 # 57
Which of the following is not covered by a site survey?
- A. Models of hardware boards on base stations
- B. Site location
- C. Antenna installation space
- D. Equipment room space and load bearing capacity
正解：A
解説：
Explanation
A site survey is an inspection of an area where work is proposed, to gather information for a design or an estimate to complete the initial tasks required for an outdoor activity 1. A site survey can cover various aspects, such as antenna installation space, equipment room space and load bearing capacity, site location, and other environmental factors 2. However, a site survey does not cover the models of hardware boards on base stations, as this information is not related to the physical characteristics of the site. The models of hardware boards on base stations are determined by the network design and configuration, which are based on the network requirements and specifications 3. Therefore, the correct answer is C.
質問 # 58
......
Huawei H35-580_V2.0認定プログラムは、信頼性が高く効率的な5G RNPソリューションを設計および実装するために必要な知識と実用的なスキルを専門家に提供することを目的としています。認定プログラムは、5G RAN計画プロセス、5G RAN容量計画、5G RANロールアウト計画、5G RANネットワーク最適化、5G RANパフォーマンス管理など、5G RNPのすべての側面をカバーしています。また、参加者がネットワークスライス、サービス指向のアーキテクチャ、クラウドネイティブアーキテクチャなどの5G RNPのベストプラクティスを理解するのに役立ちます。
Huawei H35-580_V2.0（HCIA-5G-RNP＆RNO V2.0）認定試験は、5Gラジオネットワークの計画と最適化に取り組むIT専門家向けに設計された専門レベルの認定試験です。この試験は、5G無線ネットワークの計画と最適化の分野で候補者の知識とスキルをテストするように設計されています。この試験では、ラジオネットワーク計画、ラジオネットワークの最適化、ネットワークパフォーマンス管理など、幅広いトピックをカバーしています。
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