Huawei H35-580_V2.0 Dumps Updated Dec 06, 2023 WIith 62 Questions
View All H35-580_V2.0 Actual Free Exam Questions Dec 06, 2023 Updated
NEW QUESTION # 28
Which of the following AAUs support vertical beamforming?(Select All that Apply)
- A. 4T4R
- B. 8T8R
- C. 64T64R
- D. 32T32R
Answer: C,D
Explanation:
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.
NEW QUESTION # 29
Handover execution failures can use the counters to collect failure reasons in SA networking.
- A. True
- B. False
Answer: A
Explanation:
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.
NEW QUESTION # 30
5G can meet service requirements in scenarios with a mobility speed of up to 500 km/h.
- A. True
- B. False
Answer: A
Explanation:
Explanation
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.
NEW QUESTION # 31
In order to achieve ideal coverage, what is the clearance requirement around an antenna?
- A. 5000-10000m
- B. 50-100m
- C. 5-10m
- D. 1-5m
Answer: C
Explanation:
Explanation
In order to achieve ideal coverage, there should be a clearance zone around an antenna of at least d, where d is the Fraunhofer or Rayleigh distance at which the near/far-field transition zone exists 17. This distance depends on the largest dimension of the antenna, D, and the operating wavelength, \uF06C. Ideally, D should be at least a half of a wavelength, which gives a minimum clearance zone of a half-wavelength. For example, at 2.4 GHz, the wavelength is about 0.125 m, so the minimum clearance zone is about 0.0625 m. However, in practical situations, this clearance zone is often compromised and the effects must be determined through simulation or empirical measurement 18. A general guideline is to have a clearance zone of 5-10 m around an antenna to avoid significant degradation of performance 19. Therefore, the best answer is C.
NEW QUESTION # 32
The UPEU in the BBU5900 needs to be connected to two circuit breakers.
- A. False
- B. True
Answer: A
Explanation:
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.
NEW QUESTION # 33
In the uplink rate test for NR users, which of the following values is the recommended uplink maximum MIMO layers for 2T4R UEs?
- A. Layer3
- B. Layer4
- C. Layer2
- D. Layer1
Answer: C
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 # 34
CU-DU Split of a base station means that the base station's control plane functions and user plane functions are separated.
- A. True
- B. False
Answer: A
Explanation:
Explanation
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.
NEW QUESTION # 35
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. Reflection in a large amount of water.
- D. Signals travel far along a street due to the waveguide effect.
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 # 36
Which of the following RF modules support 64T64R?(Select All that Apply)
- A. AAU5612
- B. AAU5313
- C. AAU5613
- D. RRU3939
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 # 37
Which of the following is not the cause of cell unavailability due to system faults (specified using
N.Cell.Unavail.Dur.System)?
- A. Faults on an RF module's TX or RX channels
- B. Blocking cells by using MML commands
- C. CPRI link faults
- D. Board faults
Answer: B
Explanation:
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.
NEW QUESTION # 38
Which of the following protocol layers has been added to the 5G air interface protocol stack compared with
4G?
- A. RRC
- B. MAC
- C. POCP
- D. SDAP
Answer: D
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 # 39
In an intra-frequency reselection procedure, which message contains the rangeToBestCell parameter?
- A. SIB4
- B. SIB1
- C. SIB2
- D. SIB3
Answer: C
Explanation:
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.
NEW QUESTION # 40
Which of the following statements about the space principles for 5G BBU installation are correct?(Select All that Apply)
- A. If the remaining space of an existing cabinet is greater than 4 U, the BBU can be installed directly.
- B. If the installation space is insufficient, install 5G boards directly into the existing 4G B8U.
- C. If the space is greater than 600 mm, a cabinet can be added to install the BBU.
- D. If the installation space is insufficient, the BBU can be installed on a wall. Ensure that the wall meets the load bearing requirements.
Answer: A,C,D
Explanation:
Explanation
According to the Hardware Description: Bbu5900 V100r013c10, these statements are correct about the space principles for 5G BBU installation:
If the installation space is insufficient, the BBU can be installed on a wall. Ensure that the wall meets the load bearing requirements: The BBU can be installed on a wall using wall-mounted brackets. The wall must be able to bear at least four times the weight of the BBU and must be flat and vertical. The installation height of the BBU must not exceed 2 m.
If the space is greater than 600 mm, a cabinet can be added to install the BBU: The BBU can be installed in a cabinet that meets the requirements of Huawei base stations. The cabinet must have a width of 19 inches and a depth of at least 600 mm. The cabinet must also provide sufficient ventilation, grounding, and lightning protection for the BBU.
If the remaining space of an existing cabinet is greater than 4 U, the BBU can be installed directly: The BBU can be installed in an existing cabinet that has enough space for it. The BBU has a height of 2 U, so it requires at least 4 U of space in a cabinet. The existing cabinet must also meet the requirements of Huawei base stations.
The other statement is incorrect about the space principles for 5G BBU installation:
If the installation space is insufficient, install 5G boards directly into the existing 4G B8U: This statement is not supported by Huawei base stations. The 5G boards cannot be installed directly into the existing 4G B8U because they have different slot distributions and board types. The 5G boards can only be installed in a BBU5900 subrack that supports both LTE and NR modes.
NEW QUESTION # 41
Which of the following protocols/data belong to Layer 3 of the Uu interface?(Select All that Apply)
- A. IP data
- B. MAC protocol
- C. RLC protocol
- D. RRC protocol
Answer: D
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 # 42
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 # 43
Which of the following protocols/data belong to Layer 3 of the Uu interface?(Select All that Apply)
- A. IP data
- B. MAC protocol
- C. RLC protocol
- D. RRC protocol
Answer: D
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 # 44
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: C
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 # 45
Which of the following statements about throughput-related indicators are correct?(Select All that Apply)
- A. Throughput is more accurate if the last small packet of each data transmission burst and its transmission duration are added.
- B. 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.
- C. 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.
- D. The uplink/downlink average UE throughput is used to evaluate the user-perceived rate.
Answer: B,C,D
Explanation:
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.
NEW QUESTION # 46
Which of the following is not covered by a site survey?
- A. Equipment room space and load bearing capacity
- B. Models of hardware boards on base stations
- C. Antenna installation space
- D. Site location
Answer: B
Explanation:
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.
NEW QUESTION # 47
Which of the following items can be used for measurement evaluation in idle mode during coverage problem analysis?
- A. CSI-RSRP
- B. SRS
- C. SS-RSRP
- D. OPMI
Answer: C
Explanation:
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.
NEW QUESTION # 48
Which of the following logical channels can be mapped to different transport channels?
- A. PCCH
- B. DCCH
- C. CCCH
- D. BCCH
Answer: A,B,C
Explanation:
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.
NEW QUESTION # 49
Which of the following is not a typical application scenario of massive MIMO?
- A. Densely populated urban areas
- B. Large venues
- C. High-rise buildings
- D. Suburban areas with light traffic
Answer: D
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 # 50
In the MR-DC architecture, which of the following factors affect the data split on a base station?(Select All that Apply)
- A. Air interface latency
- B. RLC layer buffer
- C. X2 latency
- D. PDCP layer buffer
Answer: A,C,D
Explanation:
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.
NEW QUESTION # 51
......
New H35-580_V2.0 Exam Questions Real Huawei Dumps: https://troytec.validtorrent.com/H35-580_V2.0-valid-exam-torrent.html