Free H35-580_V2.0 Braindumps Download Updated on Feb 24, 2024 with 62 Questions
Huawei H35-580_V2.0 Exam Practice Test Questions
Huawei H35-580_V2.0 (HCIA-5G-RNP&RNO V2.0) Certification Exam is a globally recognized certification that demonstrates the knowledge and skills of professionals in the field of 5G technology. H35-580_V2.0 exam is designed to test the ability of professionals to plan, design, optimize, and troubleshoot 5G networks. It covers various topics such as 5G network architecture, 5G Radio Access Network (RAN) planning and optimization, and 5G network deployment and maintenance.
Huawei H35-580_V2.0: HCIA-5G-RNP&RNO V2.0 is a certification exam that tests the knowledge and skills of professionals in the field of 5G radio network planning and optimization. H35-580_V2.0 exam is designed to validate the abilities of candidates to plan and optimize 5G radio networks, as well as to troubleshoot and maintain them.
NEW QUESTION # 15
Which of the following is not a typical application scenario of massive MIMO?
- A. Suburban areas with light traffic
- B. High-rise buildings
- C. Large venues
- D. Densely populated urban areas
Answer: A
Explanation:
Explanation
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.
NEW QUESTION # 16
Which of the following statements about the advantages of the Rayce ray tracing model are correct?(Select All that Apply)
- A. It offers more accurate path searching, reflection, and diffraction energy calculation for electromagnetic wave propagation.
- B. It offers higher level prediction accuracy.
- C. It is applicable only to C-band, and not mmWave.
- D. It offers more accurate modeling for massive MIMO.
Answer: A,B
Explanation:
Explanation
The Rayce ray tracing model is a propagation model that computes propagation paths using 3-D environment geometry 3. It is based on the shooting and bouncing rays (SBR) method, which launches rays from the transmitter and traces their reflections and diffractions until they reach the receiver or are attenuated below a threshold 4. The Rayce ray tracing model offers more accurate path searching, reflection, and diffraction energy calculation for electromagnetic wave propagation than other models, such as empirical models or deterministic models 5. It also offers higher level prediction accuracy, especially for massive MIMO systems that use beamforming techniques 6. The Rayce ray tracing model is not applicable only to C-band, but also to mmWave and other frequency bands 7.
NEW QUESTION # 17
In the cell search process in 5G SA, a UE completes frame synchronization after reading the SS.
- A. True
- B. False
Answer: B
Explanation:
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.
NEW QUESTION # 18
If AFGIobal is 15 kHz, FREF-Offs is 3000 MHz, and NREF-Offs is 600000, which of the following is the NR Absolute Radio Frequency Channel Number (NR-ARFCN) corresponding to 3300 MHz?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Explanation
According to the NR-ARFCN (NR absolute radio frequency channel number), the NR-ARFCN value consists of two components: the band indicator and the channel number. The band indicator represents the frequency band on which the carrier frequency lies, while the channel number represents the specific carrier frequency within that band. The NR-ARFCN value is calculated by the following formula:
NR-ARFCN = FREF-Offs + NREF-Offs + FGlobal * (Fcarrier - FREF-Offs) / AFGIobal where FREF-Offs is the reference frequency offset, NREF-Offs is the reference NR-ARFCN offset, FGlobal is the global frequency raster, Fcarrier is the carrier frequency, and AFGIobal is the absolute frequency granularity.
Given that AFGIobal is 15 kHz, FREF-Offs is 3000 MHz, and NREF-Offs is 600000, we can plug in these values and Fcarrier = 3300 MHz into the formula and get:
NR-ARFCN = 3000 + 600000 + 5 * (3300 - 3000) / 0.015 NR-ARFCN = 633000
Therefore, the correct answer is A.
NEW QUESTION # 19
Which of the following RF modules support 64T64R?(Select All that Apply)
- A. RRU3939
- B. AAU5613
- C. AAU5313
- D. AAU5612
Answer: B,C
Explanation:
Explanation
According to the Huawei Releases 5G Series Products, Huawei's AAU5313 and AAU5613 are both RF modules that support 64T64R. The AAU5313 is an ultra-wideband Massive MIMO product that supports both
64T64R and 400 MHz bandwidth on the C-band. The AAU5613 is a BladeAAU Pro product that supports 64T A+P integration on sub-3 GHz bands. The AAU5612 is a BladeAAU product that supports only 32T A+P integration on sub-3 GHz bands. The RRU3939 is not an AAU product but an RRU (Remote Radio Unit) product that supports only 8T8R on sub-3 GHz bands.
NEW QUESTION # 20
In which of the following areas is overlapping coverage unlikely to occur?
- A. Crossroads in dense urban areas
- B. Inside a tunnel
- C. High-rise buildings
- D. Around areas with water
Answer: D
Explanation:
Explanation
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.
NEW QUESTION # 21
Which of the following statements about downlink beamforming are correct?(Select All that Apply)
- A. Static beams are used for broadcast channels.
- B. Only the PDSCH supports beamforming.
- C. Dynamic beams are used for traffic channels.
- D. Both broadcast channels and traffic channels support beamforming.
Answer: A,C,D
Explanation:
Explanation
According to the Beamforming techniques for massive MIMO systems in 5G, these statements are correct about downlink beamforming. Beamforming is a technique that uses multiple antennas to steer the transmitted signal toward the intended user or direction. Static beams are used for broadcast channels, such as MIB and SIB, which are transmitted to all UEs in a cell. Dynamic beams are used for traffic channels, such as PDSCH and PDCCH, which are transmitted to specific UEs based on their channel conditions and locations. Both broadcast channels and traffic channels support beamforming, but with different beamforming methods and performance requirements.
NEW QUESTION # 22
In SA networking, which of the following messages is used to deliver PRACH power control parameters to UEs?
- A. SIB1
- B. RRC reconfiguration
- C. SIB2
- D. MIB
Answer: C
Explanation:
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.
NEW QUESTION # 23
In downlink peak rate testing, the modulation and coding scheme (MCS) index must reach 32.
- A. True
- B. False
Answer: A
Explanation:
Explanation
According to the HCIA-5G V2.0 Exam Outline, in downlink peak rate testing, the modulation and coding scheme (MCS) index must reach 32, which corresponds to option A.
NEW QUESTION # 24
In NSA networking, which of the following methods can be used to support X2 interconnection between an eNodeB and a gNodeB?(Select All that Apply)
- A. Interconnection through HEI interfaces on the UBBP boards in different subracks
- B. Interconnection through CI interfaces on the UMPT boards in different subracks
- C. IPRAN interconnection between subracks
- D. Interconnection via backplane in a subrack
Answer: B,C
Explanation:
Explanation
According to the 5G EN-DC Architecture and Interfaces, there are two methods that can be used to support X2 interconnection between an eNodeB and a gNodeB in NSA networking:
Interconnection through CI interfaces on the UMPT boards in different subracks: The UMPT is a universal main processing and transmission unit that provides main processing and transmission functions for a subrack. The UMPT has two CI interfaces that can be used for X2 interconnection with other base stations. The CI interfaces support CPRI, OBSAI, and eCPRI protocols and can use optical fibers or electrical cables for transmission. The CI interfaces can be configured as master or slave interfaces depending on the network topology.
IPRAN interconnection between subracks: IPRAN is an IP-based radio access network that uses IP transport technologies to carry base station traffic over Ethernet or MPLS networks. IPRAN can support X2 interconnection betweendifferent base stations by using IP routers or switches. IPRAN can provide flexible networking, high bandwidth, low latency, and high reliability for X2 interconnection.
The other two methods are not valid for X2 interconnection between an eNodeB and a gNodeB:
Interconnection via backplane in a subrack: This method is only applicable for X2 interconnection between two eNodeBs or two gNodeBs that are installed in the same subrack. The backplane is the internal bus that connects different boards within a subrack. The backplane supports CPRI, OBSAI, and eCPRI protocols and can provide high-speed data transmission between boards.
Interconnection through HEI interfaces on the UBBP boards in different subracks: This method is not supported by Huawei base stations. The HEI interface is a high-speed Ethernet interface that is used for data transmission between base stations and core networks or transport networks. The HEI interface supports S1, Xn, F1, E1, and N2 protocols and can use optical fibers or electrical cables for transmission. The HEI interface cannot be used for X2 interconnection between base stations.
Therefore, the correct answer is A and D.
NEW QUESTION # 25
Which of the following protocols/data belong to Layer 3 of the Uu interface?(Select All that Apply)
- A. IP data
- B. RRC protocol
- C. MAC protocol
- D. RLC protocol
Answer: B
Explanation:
Explanation
According to the LTE user plane protocol stack, the Layer 3 of the Uu interface consists of the RRC protocol and the IP data. The RRC protocol is responsible for radio resource management, access control, handover and mobility, and encryption and integrity protection. The IP data is the payload of the user plane that is transmitted over the PDCP layer.
NEW QUESTION # 26
In cases where the same devices are used, which of the following link budget parameters may differ depending on use in either densely populated urban areas or rural areas?(Select All that Apply)
- A. Antenna gain
- B. Penetration loss
- C. Shadow fading margin
- D. Area coverage rate
Answer: B,C,D
Explanation:
Explanation
The link budget parameters that may differ depending on use in either densely populated urban areas or rural areas are area coverage rate, shadow fading margin, and penetration loss. The area coverage rate is the percentage of area within a cell that can receive a signal above a certain threshold. In densely populated urban areas, the area coverage rate may be lower than in rural areas due to more interference and obstacles 13. The shadow fading margin is an additional margin added to the link budget to account for the variation of signal strength due to obstacles in the propagation path. In densely populated urban areas, there may be more buildings and structures that cause shadow fading than in rural areas, so a larger shadow fading margin may be needed 14. The penetration loss is the loss of signal strength when it passes through walls or windows into buildings. In densely populated urban areas, there may be more indoor users than in rural areas, so a larger penetration loss may be considered 15. The antenna gain is not a parameter that depends on use in either densely populated urban areas or rural areas. It is a parameter that depends on the antenna design and configuration, which are usually fixed for a given system 16.
NEW QUESTION # 27
Which of the following protocol layers has been added to the 5G air interface protocol stack compared with
4G?
- A. MAC
- B. SDAP
- C. RRC
- D. POCP
Answer: B
Explanation:
Explanation
According to the HCIA-5G V2.0 Exam Outline, SDAP is a new protocol layer added to the 5G air interface protocol stack compared with 4G. SDAP stands for Service Data Adaptation Protocol, and it is used to map QoS flows to data radio bearers and perform header compression and decompression.
NEW QUESTION # 28
How many RBs are included when a bandwidth of 100 MHz and a subcarrier spacing of 60 kHz are used in a
5G cell?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Explanation
To find the number of RBs in a 5G cell, we need to know the bandwidth and the subcarrier spacing of the cell.
The bandwidth is the total frequency range allocated for the cell, while the subcarrier spacing is the frequency separation between adjacent subcarriers in the cell. A RB is a group of 12 consecutive subcarriers in the frequency domain 12. Therefore, the number of RBs in a 5G cell can be calculated by dividing the bandwidth by the product of the subcarrier spacing and 12.
Given that the bandwidth is 100 MHz and the subcarrier spacing is 60 kHz, we can use the following formula to find the number of RBs:
Number of RBs = Bandwidth / (Subcarrier spacing * 12) Number of RBs = 100 MHz / (60 kHz * 12) Number of RBs = 100000 kHz / 720 kHz Number of RBs = 138.888...
However, since the number of RBs must be an integer, we need to round it down to the nearest multiple of
3 3. This is because the NR standard defines different frequency ranges for different subcarrier spacings, and each frequency range has a minimum and maximum number of RBs that are multiples of 3 4. For example, for subcarrier spacing of 60 kHz, the frequency range is from 24250.08 MHz to 52600.08 MHz, and the minimum and maximum number of RBs are 66 and 273, respectively.
Therefore, the closest multiple of 3 to 138.888... is 135. However, this number is not valid because it is lower than the minimum number of RBs for subcarrier spacing of 60 kHz. The next valid multiple of 3 is 273, which is also the maximum number of RBs for subcarrier spacing of 60 kHz. Therefore, the correct answer is C. 273.
NEW QUESTION # 29
In the uplink rate test for NR users, which of the following values is the recommended uplink maximum MIMO layers for 2T4R UEs?
- A. Layer2
- B. Layer1
- C. Layer3
- D. Layer4
Answer: A
Explanation:
Explanation
According to the HCIA-5G V2.0 Exam Outline, the uplink maximum MIMO layers for 2T4R UEs is 2, which corresponds to option B.
NEW QUESTION # 30
Which of the following boards support CPU usage query?(Select All that Apply)
- A. UMPT
- B. UBBP
- C. FAN
- D. UPEU
Answer: A,B,D
Explanation:
Explanation
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.
NEW QUESTION # 31
Which of the following channels/signals require demodulation reference signals (DMRSs)?(Select All that Apply)
- A. DCSI-RS
- B. DPOSCH
- C. DPDCCH
- D. DPBCH
Answer: B,C,D
Explanation:
Explanation
According to the 5G NR Physical Layer Specifications, demodulation reference signals (DMRSs) are required for the following channels/signals in the downlink and uplink:
Downlink Physical Broadcast Channel (DPBCH)
Downlink Physical Downlink Control Channel (DPDCCH)
Downlink Physical Shared Channel (DPOSCH)
Uplink Physical Random Access Channel (PRACH)
Uplink Physical Uplink Control Channel (PUCCH)
Uplink Physical Uplink Shared Channel (PUSCH)
NEW QUESTION # 32
Which of the following are common causes of overshoot coverage?(Select All that Apply)
- A. The transmit power of a base station is too high.
- B. The height of the antenna or AAU is too low.
- C. Signals travel far along a street due to the waveguide effect.
- D. Reflection in a large amount of water.
Answer: C,D
Explanation:
Explanation
According to the HCIA-5G - Huawei Enterprise Support Community, reflection in a large amount of water and signals traveling far along a street due to the waveguide effect are common causes of overshoot coverage, which correspond to options A and C.
NEW QUESTION # 33
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