H35-580_V2.0 Huawei HCIA-5G-RNP&RNO V2.0 Free Practice Exam Questions (2025 Updated)

According to the HCIA-5G V2.0 Exam Outline, no response from the UE, insufficient radio resources, and unauthorized UE are cause values of QoS flow setup failures, which correspond to options A, B, and D. Insufficient transmission resources is not a cause value of QoS flow setup failures, but a cause value of handover execution failures, which corresponds to option C.

According to the HCIA-5G - Huawei Enterprise Support Community, overlapping coverage is likely to occur in areas such as inside a tunnel, crossroads in dense urban areas, and high-rise buildings, which correspond to options A, B, and C. These areas have complex propagation environments and multiple paths for signals to reach the UE. Around areas with water, overlapping coverage is unlikely to occur because water can reflect signals and reduce interference from other cells, which corresponds to option D.

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.

Massive MIMO is a technology that uses a large number of antennas at the base station to serve multiple users simultaneously, thereby increasing the spectral efficiency and capacity of the wireless system 1. Massive MIMO is especially suitable for application scenarios where there is high user density and high traffic demand, such as large venues, high-rise buildings, and densely populated urban areas 2. Suburban areas with light traffic do not have such high requirements for spectral efficiency and capacity, and therefore are not a typical application scenario of massive MIMO.

 According to the Huawei Career Certification Learning, 5G can meet service requirements in scenarios with a mobility speed of up to 500 km/h, which is much higher than the 4G limit of 350 km/h.

According to the HCIA-5G V2.0 Exam Outline, base station receive diversity gain is a factor that affects uplink coverage, not downlink coverage. Downlink coverage is affected by factors such as downlink path loss, downlink transmit power, and antenna gain, which correspond to options B, C, and D.

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.

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.

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.

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.

According to the 5G NR Physical Layer Specifications, Paging, SIB, and MIB are common messages that need to be scheduled. Paging is a message that is used to notify a UE of incoming data or system information when it is in idle mode or connected mode inactive state. SIB stands for System Information Block, which is a message that contains various system parameters and configuration information for UEs. MIB stands for Master Information Block, which is a message that contains essential system information such as system frame number and subcarrier spacing. These common messages need to be scheduled because they are transmitted periodically and have fixed time-frequency resources.

According to the HCIA-5G V2.0 Exam Outline, in the NSA DC architecture, when a UE moves to a neighboring gNodeB, the SgNB change procedure is triggered, which corresponds to option D.

According to the HCIA-5G V2.0 Exam Outline, user capacity usage is an NR system indicator that is at the base station level, which corresponds to option C. It reflects the number of users that can be served by a base station. PRB usage, PDCCH resource usage, and paging resource usage are NR system indicators that are at the cell level, which correspond to options A, B, and D. They reflect the utilization of physical resources in a cell.

According to the Huawei 5G Base Station Product Description, the following boards support CPU usage query:

UPEU (Universal Power and Environment Interface Unit): It provides power supply and environment monitoring functions for other boards in a subrack. It supports CPU usage query through commands or web pages.

UMPT (Universal Main Processing and Transmission Unit): It provides main processing and transmission functions for a subrack. It supports CPU usage query through commands or web pages.

UBBP (Universal Baseband Processing Unit): It provides baseband processing functions for a subrack. It supports CPU usage query through commands or web pages.

The FAN (Fan Unit) does not support CPU usage query because it does not have a CPU.

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.

According to the China’s Approach to Military 5G Networks and Related Military Applications, CU-DU Split of a base station means that the base station’s control plane functions (CU) and user plane functions (DU) are separated, which can improve network flexibility and scalability.

According to the 5G SA Cell Search & Network Entry Matrix, the first step for a UE to perform a cell search in SA networking is to synchronize frames and obtain PCI group number. This step involves the following sub-steps:

The UE scans the available frequency range to detect the presence of Synchronization Signal Blocks (SSBs) from different base stations. SSBs are periodic signals that contain essential synchronization and system information for cell search and initial access.

The UE selects an SSB with the strongest signal strength and decodes its Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS). The PSS and SSS are part of the SSB and provide coarse timing synchronization and cell identity information.

The UE uses the PSS and SSS information to synchronize its internal clock with that of the base station and obtain the Physical Cell Identity (PCI) group number. The PCI group number is a 9-bit value that identifies a group of 8 cells that share the same PSS and SSS sequences. The PCI group number ranges from 0 to 1007.

The other steps for a UE to perform a cell search in SA networking are:

Synchronize half-frames and obtain the ID within a PCI group: The UE further synchronizes its timing with the base station by decoding its Narrowband Synchronization Signal (NSSS), which is also part of the SSB. The NSSS provides more precise timing information and the ID within a PCI group, which is a 3-bit value that identifies a specific cell within a PCI group. The ID within a PCI group ranges from 0 to 7. By combining the PCI group number and the ID within a PCI group, the UE can obtain the full PCI, which is a 10-bit value that uniquely identifies a cell.

Obtain other cell information: The UE decodes other signals and channels in the SSB to acquire other cell information, such as system bandwidth, subcarrier spacing, frame structure, etc. These signals and channels include Demodulation Reference Signals (DMRS), Master Information Block (MIB), System Information Block (SIB), etc.

Obtain the cell signal quality: The UE measures the cell signal quality based on various indicators, such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Signal-to-Interference-plus-Noise Ratio (SINR), etc. These indicators reflect the strength, quality, and interference level of the received signal.