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Huawei H31-411 Exam Questions and Answers, Huawei HCIA-LTE | SPOTO

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Question #1
What is the main reason for the low latency of LTE?
A. LTE base station processing capability is strong
B. Network structure flattening
C. Good terminal performance
D. Optical fiber transmission
View answer
Correct Answer: B
Question #2
Which of the following are not the encryption algorithms defined in the EPS? (Multiple choice)
A. 128-EEA1
B. 128-EEA2
C. 128-EIA1
D. 128-EIA2
View answer
Correct Answer: CD
Question #3
Which QCI does IMS signaling correspond to?
A. QCI1
B. QCI2
C. QCI5correct
D. QCI 9
View answer
Correct Answer: C
Question #4
To Huawei Probe&Assistant software side, about the dropped calls formula definition, which of the following is correct?
A. Call Drop Rate = eRAB AbnormRel/eRAB Setup Success *100%correct
B. Call Drop Rate = eRAB AbnormRel/RRC Connection Setup Success *100%
C. Call Drop Rate = eRAB AbnormRel/eRAB Release Total *100%
D. Call Drop Rate = eRAB AbnormRel/eRAB NormRel *100%
View answer
Correct Answer: A
Question #5
The wireless layer access class information, which is allocated to a specific UE, including UE timers, common channel parameter configuration, will be broadcasted on which kind of the following system messages?
A. MIB
B. SIB1
C. SIB2correct
D. SIB3
View answer
Correct Answer: C
Question #6
The SAE-GW is a combination of two network elements, SGW and PGW.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #7
Both the indoor distribution RRU3151 and RRU3152 series support 2T2R configuration.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #8
The A4 event indicates that the quality of the neighboring area is above a certain threshold and can be used for load balancing.
A. False
B. True
View answer
Correct Answer: B
Question #9
The RET interface on RRU is used to connect tunable antenna.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #10
The CPRI protocol between BBU and RRU is private protocol.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #11
In the process of Attach/TAU/Handover, which of the following information are based on by MME using DNS resolution function to select the S-GW?
A. APN
B. GUTI
C. TAIcorrect
D. None of the above
View answer
Correct Answer: C
Question #12
Which of the following modules does the AAU function module include? (Multiple Choice)
A. AUcorrect
B. RUcorrect
C. CU
D. Power Modulecorrect
View answer
Correct Answer: ABD
Question #13
Which of the following descriptions are correct? (Multiple Choice)
A. The object of EPS session management is EPS bearercorrect
B. The EPS provides an IP connection between the UE and the PDN through the E-UTRAN network and the EPC network for UE, which is called a PDN connection
C. EPS bearer is defined as a logical set of one or more Service Data Flows (SDFs) to meet the needs of QoS management and control at a bearer level granularity
D. When the UE is connected to the PDN, an EPS bearer is established
E. This bearer is called the default bearer
F. The default bearer and dedicated bearer under a PDN connection generally correspond to different APNs
View answer
Correct Answer: ABCD
Question #14
The safety vector in 4G is a quad. Which of the following names of the quad are included? (Multiple Choice)
A. RANDcorrect
B. XREScorrect
C. AUTNcorrect
D. SRES
E. KASMEcorrect
View answer
Correct Answer: ABCE
Question #15
About the description of the gateway selection in EPC, which of the following are correct? (Multiple Choice)
A. MME select S-GW according to the UE's current TAIcorrect
B. In the process of Attach, select S-GW using the DNS parse function based on TAIcorrect
C. Should try to choose the P-GW unity with the selected S-GWcorrect
D. If UEA activates multiple PDN connections to a APN, these PDN connections can choose different PGW
View answer
Correct Answer: ABC
Question #16
What respectively are the mainstream sub-frame ratio and special subframe ratio of project delivery TDD LTE in China?
A. SA2, SSP5
B. SA5, SSP7
C. SA5, SSP2
D. SA2, SSP7
View answer
Correct Answer: A
Question #17
The UBBP board supports reuse of baseband resources between systems to achieve multi-system concurrency.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #18
In LTE system, what is the length of the wireless subframe?
A. 0
B. 1mscorrect
C. 10ms
D. 7ms
View answer
Correct Answer: B
Question #19
Which of the following NE (Network Element) does the packet not go through when the users are surfing the Internet with cell phone?
A. MMEcorrect
B. GGSN
C. SGW
D. PGW
View answer
Correct Answer: A
Question #20
Which of the following interface is based on the Diameter protocol?
A. S1-MME
B. S11
C. S1-U
D. S6acorrect
View answer
Correct Answer: D
Question #21
Which of the following command can query the model and supported band of RRU?
A. DSP RRU
B. LST RRU
C. DSP BRDMFRINFOcorrect
D. DSP BRD
View answer
Correct Answer: C
Question #22
One resource block RB has 14 symbols in the time domain and 12 subcarriers in the frequency domain.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #23
Which of the following NE does LTE system's IMS service data transmission have nothing to do with?
A. UE
B. eNodeB
C. MMEcorrect
D. S-GW
View answer
Correct Answer: C
Question #24
Which sub-functions are the RF subsystem functions included in the following? (Multiple Choice)
A. Complete the send and receive processing functions of the wireless signalcorrect
B. Complete uplink and downlink baseband data processing functions
C. Provide interface of base station and antenna systemcorrect
D. Provide interface of base station and the external clock source
View answer
Correct Answer: AC
Question #25
When the user is in ECM-IDLE state, which of the following is the user's location granularity that the network can know?
A. TA
B. Cell
C. TA listcorrect
D. Do not know any location information
View answer
Correct Answer: C
Question #26
Which of the following statements is correct?
A. When the base station has the smallest packet, it can execute some MML commands, and can also perform self-test and comprehensive maintenance, etc
B. When the base station is the smallest packet, the MML command cannot be executed, and adding a software package must be executed before the MML command can be executed
C. The RRU of LTE can only connect the AISG multi-core cable to control the ESC antenna through the RET port
D. When adding a software package, you can start the FTP service by clicking "FTP Tools" in the upper right corner of WEBLMT
View answer
Correct Answer: D
Question #27
SFBC is a transmit diversity technique that mainly obtains transmit diversity gain for areas with low SINR, such as cell edges. Compared to STBC, SFBC is a space-frequency two-dimensional transmit diversity, while STBC is a space-time two-dimensional transmit diversity.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #28
In LTE, the uplink pilot signal includes DMRS and Sounding RS.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #29
In which of the following process, MME use DNS parse function based on GUTI to select new MME? (Multiple Choice)
A. Attachcorrect
B. TAUcorrect
C. Handover
D. Service Request
View answer
Correct Answer: AB
Question #30
Which of the following are the solutions of the missed neighbor cell? (Multiple Choice)
A. Adjust cell switching priority
B. Manually add neighbor cell configurationcorrect
C. Check the RF (Radio Frequency) channel
D. Open ANR algorithm switchcorrect
View answer
Correct Answer: BD

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