H31-411 Questions And Answers
$129
Exam Name: HCNA - Huawei LTE Technologies and Device
Updated: 2019-03-20
Q & A: 285
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Question No : 1
In LTE, which of the following is the way of the self-establishment of X2 port? (Multiple choice)
A. X2overM2000
B. X2overMME
C. X2overS1
D. X2overPRS
A. X2overM2000
B. X2overMME
C. X2overS1
D. X2overPRS
Answer: AC
Question No : 2
What are the advantages of OFDM? (Multiple choice)
A. high spectrum efficiency
B. against frequency selective weak
C. high peak-to-average
D. low peak-to-average
A. high spectrum efficiency
B. against frequency selective weak
C. high peak-to-average
D. low peak-to-average
Answer: AB
Question No : 3
If negotiation mode of UMPT veneer FE/GE optical interface on both ends are inconsistent, the optical interface may be down, after a period of time will resume for auto-negotiation.
A. True
B. False
A. True
B. False
Answer: B
Question No : 4
Which of the following reasons will cause radio frequency unit accept channel RTWP/RSSI too low alarm? (Multiple choice)
A. abnormal feeder installation or poor head process
B. antenna feeder port connected feed cable exist extrusion, bend or feed cable damage
C. radio frequency unit master set or diversity reception channel fault
D. radio frequency unit master set or diversity antenna exist alone outside interference
E. data configuration fault
A. abnormal feeder installation or poor head process
B. antenna feeder port connected feed cable exist extrusion, bend or feed cable damage
C. radio frequency unit master set or diversity reception channel fault
D. radio frequency unit master set or diversity antenna exist alone outside interference
E. data configuration fault
Answer: ABCE
Question No : 5
AS security procedures, MME issued key, view messages, in which of the following messages exist encryption algorithms and security key?
A. Authentication information Answer (HSS sent to MME)
B. Security Mode Command (MME sent to UE)
C. INIT CONTEXT SETUP REQ (MME sent to eNodeB)
D. None of the above
A. Authentication information Answer (HSS sent to MME)
B. Security Mode Command (MME sent to UE)
C. INIT CONTEXT SETUP REQ (MME sent to eNodeB)
D. None of the above
Answer: C
Question No : 6
Which of the following is a UPEUc output power and 2 piece of UPEU output power in current mode?
A. 300w/360w
B. 300w/600w
C. 360w/360w
D. 360w/650w
A. 300w/360w
B. 300w/600w
C. 360w/360w
D. 360w/650w
Answer: D
Question No : 7
Which of the following is the temporary identifier MME assigned to the user in SAE network?
A. M-TMSI
B. GUM
C. IMSI
D. GUMMEI
A. M-TMSI
B. GUM
C. IMSI
D. GUMMEI
Answer: B
Question No : 8
Which of the following application scenario does TM3 not apply to?
A. mobile high speed
B. business high bandwidth
C. cell central section
D. cell edge
A. mobile high speed
B. business high bandwidth
C. cell central section
D. cell edge
Answer: D
Question No : 9
In the Uu interface, which of the following layer performs traffic monitoring report function?
A. RRC
B. PDCP
C. BMC
D. MAC
E. RLC
A. RRC
B. PDCP
C. BMC
D. MAC
E. RLC
Answer: D
Question No : 10
D, F, E spectrum corresponding frequency band are respectively 38,39, 40; the corresponding frequency range respectively is 2570-2620,1880-1920,2300-2400.
A. True
B. False
A. True
B. False
Answer: A
Question No : 11
If UE requested PDP Type is IPv4v6, signed PDP Type is IPv4v6, but MME does not support dual-stack, in this case. Which of the following may the final UE obtain PDP Type? (Multiple choice)
A. IPv4
B. IPv6
C. IPv8
D. IPv4v6
A. IPv4
B. IPv6
C. IPv8
D. IPv4v6
Answer: AB
Question No : 12
Which of the following interface is based on S1-AP protocol?
A. S1-MME
B. S1-U
C. S5/S8
D. S6a
A. S1-MME
B. S1-U
C. S5/S8
D. S6a
Answer: A
Question No : 13
Which of the following modulation method can LTE system support? (Multiple choice)
A. QPSK
B. 16QAM
C. 64QAM
D. GMSK
A. QPSK
B. 16QAM
C. 64QAM
D. GMSK
Answer: ABC
Question No : 14
Which of the following interface is the interface between eNB and MME?
A. Iub
B. S1
C. X2
D. S5
A. Iub
B. S1
C. X2
D. S5
Answer: B
Question No : 15
Which of the following is the length of conventional CP in TD-LTE system physical layer?
A. 4.69 µs
B. 16.67 µs
C. 33.33 µs
D. 9.77 µs
A. 4.69 µs
B. 16.67 µs
C. 33.33 µs
D. 9.77 µs
Answer: A
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