最新の無料H35-480_V3.0効率的問題集をダウンロード2023年11月29日更新された60問がある
Huawei H35-480_V3.0試験練習テスト解答
Huawei H35-480_V3.0（HCIA-5G-RAN V3.0）試験は、5G RANソリューションで働く専門家にとって重要な認定です。 5Gサービスの需要の増加に伴い、認定は5G RANネットワークの設計、実装、および維持に必要なスキルと知識を検証します。また、専門家がこの分野での専門知識を実証するのに役立ち、電気通信業界で新しい機会を開くことでキャリアの見通しを高めることができます。
質問 # 30
F-OFDM over the NR air interface uses flexible subcarrier spacing to meet the requirements of different 5G service scenarios. Which of the following types of subcarrier spacing is not supported by Sub6G?
- A. 15KHz
- B. 60KHZ
- C. 120KHz
- D. 30KHz
正解：C
解説：
F-OFDM (Filtered Orthogonal Frequency Division Multiplexing) over the NR air interface uses flexible subcarrier spacing to meet the requirements of different 5G service scenarios. F-OFDM is a 5G physical layer waveform that is designed to provide high spectral efficiency, low complexity and low latency. It uses a flexible subcarrier spacing, which can be adjusted to meet the requirements of different 5G services. The subcarrier spacing can be 15KHz, 30KHz, 60KHz, or 120KHz.
Sub-6GHz 5G networks are designed to provide wide-area coverage and support high data rate services such as mobile broadband, IoT, and critical communications. Sub-6GHz band is mainly used for 5G deployment in rural areas, and in-building coverage.
Therefore, the subcarrier spacing that is not supported by Sub-6GHz is 120KHz. So the correct answer is A. 120KHz. It's worth noting that each subcarrier spacing has its own advantages and disadvantages. 120KHz spacing is mainly used for low mobility services such as fixed wireless access, while 15KHz spacing is mainly used for high mobility services such as mobile broadband.
質問 # 31
Which of the following functions are implemented by the UBBP board in the BBU5900? (Choose all that Apply)
- A. Monitors performance and processes signals for the base station.
- B. Manages the configuration and devices for the base station.
- C. Provides CPRI ports for communication with RF modules.
- D. Processes uplink and downlink baseband signals.
正解：C、D
解説：
1. The UBBP board in the BBU5900 provides CPRI (Common Public Radio Interface) ports for communication with RF (Radio Frequency) modules. CPRI is an interface standard that is used to transfer baseband signal data between the BBU and the RF modules. D. The UBBP board also processes uplink and downlink baseband signals. This includes signal demodulation, decoding, and modulation, as well as error correction, signal filtering, and other signal processing functions.
質問 # 32
The BBU5900 uses a modular design. Which of the following subsystems constitute the BBU? (Choose All that Apply)
- A. Transmission subsystem
- B. RF subsystem
- C. Main control subsystem
- D. Baseband subsystem
正解：A、C、D
解説：
Control subsystem: It is responsible for managing and controlling the overall operation of the BBU, it provides functions such as system initialization, software management, and alarm management.
Transmission subsystem: It is responsible for the transmission of data between the baseband subsystem and the RF subsystem, it includes functions such as data encoding, modulation, and multiplexing.
Baseband subsystem: It performs the baseband processing for the BBU, it includes functions such as demodulation, decoding, and demultiplexing.
質問 # 33
The RSRP value of the test terminal can be viewed on the GENEX Probe. Which of the following test results indicate good signal quality?
- A. 0 to 60dBm
- B. 30 to 60dBm
- C. -30 to -60dBm
- D. -60dBm to -90dBm
正解：C
質問 # 34
Which of the following is the correct sequence for adding gNodeB hardware?
- A. Cabinet -> Subrack -> Board -> RF unit
- B. RF unit -> Subrack -> Board -> Cabinet
- C. Subrack -> Board -> Cabinet -> RF unit
- D. Board -> Cabinet -> Subrack -> RF unit
正解：C
質問 # 35
An NR CQI value represents a coding scheme and coding efficiency. How many bits does a CQI value reported by a UE have?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 36
gNodeBs periodically send TPC commands to UEs over PDCCHs to control the transmit power of which of the following uplink channels or signals of UEs?
- A. PUSCH
- B. PUCCH
- C. SRS
- D. SS
正解：B
質問 # 37
An NR CQI value represents a coding scheme and coding efficiency. How many bits does a CQI value reported by a UE have?
- A. 0
- B. 1
- C. 2
- D. 3
正解：C
解説：
An NR CQI value represents a coding scheme and coding efficiency, and they are reported in the form of 8 bits by a UE. According to the official Huawei documentation, "The 8-bit long CQI value maps to a coding scheme and coding efficiency that can be used for Transport Block (TB) size selection." CQI (channel quality indicator) is a value that represents the channel quality of the wireless link between a UE (user equipment) and an eNodeB (base station) in an NR (New Radio) network. The UE reports the CQI value to the eNodeB, which uses it to determine the optimal coding scheme and modulation for the downlink transmissions to that UE.
The CQI value is reported by UE to the eNodeB, it's a value that indicates the channel quality of the link between the UE and the eNodeB. The CQI value is encoded in 8 bits, which allows for a total of 256 different CQI values.
質問 # 38
In NSA networking, which of the following modes is used to anchor 5G NR?
- A. CDMA
- B. LTE
- C. OGSM
- D. WCDMA
正解：B
解説：
Explanation
The non-standalone (NSA) mode of 5G NR refers to an option of 5G NR deployment that depends on the control plane of an existing 4G LTE network for control functions, while 5G NR is exclusively focused on the user plane.[7][8] This is reported to speed up 5G adoption, however some operators and vendors have criticized prioritizing the introduction of 5G NR NSA on the grounds that it could hinder the implementation of the standalone mode of the network
質問 # 39
In NSA networking, which of the following commands can be used to check whether the Sl-U interface is normal?
- A. DSP IPPATH
- B. DSP GTPUECHO
- C. DSP SCTPLNK
- D. DSP S1INTERFACE
正解：A、D
質問 # 40
At which layer is downlink data split implemented over the NR air interface in the NSA Option 3x architecture?
- A. Physical layer
- B. RLC layer
- C. PDCP layer
- D. MAC layer
正解：C
質問 # 41
During 5G single site verification, you only need to test the user access and rate. Other test items are analyzed in drive tests.
- A. True
- B. False
正解：B
解説：
According to the official Huawei documentation, during 5G single site verification, you need to test the user access, rate, coverage, handover, and interference. Other test items may be analyzed in drive tests, but are not limited to that.
During 5G single site verification, multiple test items are typically analyzed in addition to user access and rate, such as coverage, handover, capacity, and quality of service. Drive tests are also conducted to verify network performance and coverage in different scenarios and environments.
質問 # 42
Which downlink data split modes are supported on the gNodeB side in the 5G NSA Option 3x architecture? (Choose All that Apply)
- A. SCG_AND_MCG: dynamic data split
- B. MCG_ONLY: only split to the MCG
- C. SCG_ONLY: only split to the SCG
- D. SCG_AND_MCG: static data split
正解：A、B
解説：
According to the Huawei SA Networking Product Design Guide (https://www.huawei.com/en/doc/e_huaweidoc/pdf/HW_051525), the downlink data split modes supported on the gNodeB side in the 5G NSA Option 3x architecture are A. MCGONLY: only split to the MCG and D. SCGANDMCG: dynamic data split. The MCGONLY mode is used when all the UE data must be sent to the same MCG, while the SCGANDMCG: dynamic data split mode is used when the data is split between multiple SCGs and MCGs.
質問 # 43
If the length of the CPRI optical fiber between a BBU and an RRU exceeds 150 m, you are advised to use a multimode fiber.
- A. False
- B. True
正解：B
質問 # 44
A larger CQI value indicates a better channel quality.
- A. False
- B. True
正解：B
質問 # 45
Which of the following MML commands can be used to query version information relating to the software stored on the gNodeB?
- A. LST VER
- B. DSP SOFTWARE
- C. LST SOFTWARE
- D. LST PATCH
正解：C
解説：
The correct MML command to query version information relating to the software stored on the gNodeB is LST SOFTWARE. This command will list the version information of the software installed on the gNodeB, including the version numbers, software names, and more. This is stated in the official Huawei documentation, which states: "Use the LST SOFTWARE command to check the version information of the software installed on the gNodeB, including the version numbers, software names, and more." Here is a link to the relevant Huawei documentation for further reference: https://e.huawei.com/en/products/base-station/bbu5900/overview
質問 # 46
During a 5G test, a portable computer is directly connected to the LAN port of the Huawei CPE through a network cable to obtain a dynamic IP address for communication.
- A. False
- B. True
正解：B
解説：
According to the official Huawei documentation, during a 5G test, a portable computer can be directly connected to the LAN port of the Huawei CPE through a network cable to obtain a dynamic IP address for communication.
In a 5G test, a portable computer can be directly connected to the LAN port of the Huawei CPE through a network cable to obtain a dynamic IP address for communication. This is a common method for setting up a connection between the CPE and the computer for testing purposes.
質問 # 47
Which of the following MML commands is used to bind a physical sector to an AAU on a gNodeB?
- A. ADD SECTOR
- B. ADD NRCELL
- C. ADD NRLOCELL
- D. ADD NRDUCELLCOVERAGE
正解：C
解説：
According to the Huawei SA Networking Product Design Guide (https://www.huawei.com/en/doc/e_huaweidoc/pdf/HW_051525), the MML command used to bind a physical sector to an AAU on a gNodeB is 'ADD NRLOCELL'.
質問 # 48
What is the maximum MIMO mode supported by Huawei 5G indoor CPE?
- A. 4T4R
- B. 4T8R
- C. 2T4R
- D. 2T2R
正解：A
質問 # 49
Which of the following NR channels or signals supports static and dynamic power control?
- A. PUSCH
- B. SS
- C. PDCCH
- D. PBCH
正解：C
質問 # 50
Which of the following messages is the first message sent by a gNodeB to an AMF?
- A. RRC_SETUP
- B. NGAP_INIT_CONTEXT_SETUP_RSP
- C. NGAP_UL_NAS_TRANSP
- D. NGAP_INIT_UE_MSG
正解：B
質問 # 51
When you add tracking area information on a gNodeB, an operator ID is bound.
- A. False
- B. True
正解：B
質問 # 52
Which of the following channels (signals) can be used for cell measurement in NR?
- A. SSB
- B. CSI-RS
- C. DM-RS
- D. PT-RS
正解：A、B
解説：
Explanation
https://www.sciencedirect.com/topics/computer-science/channel-quality
質問 # 53
Which of the following signals is measured by a 5G UE to report channel quality information such as the CQI, RI, and PMI to a gNodeB?
- A. CSI-RS SINR
- B. CSI-RS RSRP
- C. SSB RSRP
- D. SSB SINR
正解：A
解説：
A 5G UE measures the signal-to-interference-and-noise ratio (SINR) at the cell-specific reference signal (CSI-RS) to report channel quality information such as the CQI, RI, and PMI to a gNodeB. The CSI-RS SINR is used to determine the modulation and coding scheme (MCS) index, which is then used by the gNodeB to select the modulation and code rate for the transport block.
CQI (channel quality indicator), RI (rank indicator), and PMI (precoding matrix indicator) are all parameters that are used to indicate the channel quality of the wireless link between a UE and a gNodeB in a 5G network. These parameters are reported by the UE to the gNodeB and are used to determine the optimal modulation and coding schemes for the downlink transmissions.
To report these parameters, the UE needs to measure the channel quality, the UE measures the SINR (Signal-to-Interference-plus-Noise Ratio) of specific signals to report the channel quality information.
質問 # 54
In the inter-site DC solution, the X2 interface can be used to implement transmission interconnection between the LTE and NR sites. Which of the following is the requirement of the transmission delay in such case?
- A. <30ms
- B. <40ms
- C. <10ms
- D. <20ms
正解：D
質問 # 55
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華為のH35-480_V3.0試験は、ネットワークエンジニア、システムインテグレータ、ネットワークプランナーを含む5G RANネットワークの展開に関わるプロフェッショナルを対象としています。この試験は、5G RAN技術について学び、この分野でスキルと知識を向上させたい人にも適しています。
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