H31-421 Questions And Answers


Exam Name: HCIP-LTE(Huawei Certified ICT Professional-LTE)

Updated: 2022-06-25

Q & A: 192

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Question No : 1

Which of the following PRACH preamble formats can only be used for TDD random access?
A. Format 1
B. Format 2
C. Format 3
D. Format 4
Answer: D

Question No : 2

What is the purpose of the Path Switch Request process?
A. Request to switch the downstream GTP tunnel endpoint from one endpoint to another (from SGW to eNodeB)
B. Request to switch the upstream GTP tunnel endpoint from one endpoint to another (from eNodeB to SGW)
Answer: A

Question No : 3

If the RUN indicator on the LMPT is steady, it indicates that the board is operating normally.
Answer: B

Question No : 4

In normal CPD configuration of FDD-LTE, which symbol in the specific time slot is the PSS signal transmitted?
A. 1
B. 3
C. 5
D. 7
Answer: D

Question No : 5

By default, what can be the maximum TTL value of datagram sent by Tracert? If the packet does not respond within the specified time, the TTL value will be displayed on the sending end.
A. 8 ¸ö
B. 16 ¸ö
C. 30 ¸ö
D. 45 ¸ö
Answer: C

Question No : 6

Which of the following messages will not appear during the X2 interface switching?
A. Handover request
B. RRC reconfiguration request
C. Path switch request
D. Initial context setup request
Answer: D

Question No : 7

What are the functions of SGW in LTE network? (Multiple choice)
A. Mobility Anchor Point: When switching among eNBs, the SGW serves as an anchor point of the user plane
B. Downlink data cache
C. Packet routing and forwarding
D. User IP address assignment
Answer: ABC

Question No : 8

How many preamble signature are available in each cell in the LTE?
A. 16
B. 64
C. 1200
D. 12
Answer: B

Question No : 9

Which of the following event indicates that the serving cell signal falls below a certain threshold?
A. A1 event
B. A2 event
C. A3 event
D. A4 event
Answer: B

Question No : 10

The establishment of dedicated bearer is triggered by the PCRF.
A. True
B. False
Answer: B

Question No : 11

Which of the following modulation schemes can be supported by the LTE system? (Multiple choice)
B. 16QAM
C. 64QAM
Answer: ABC

Question No : 12

Which of the following application layer protocol is used by the interface S6a between MME and HSS?
C. Diameter
Answer: C

Question No : 13

Which of the following are the functions of S1AP agreement? (Multiple Choice)
A. E-RAB management
B. Load management
C. paging
D. NAS signaling transmission
E. mobility management
Answer: ACDE

Question No : 14

In one radio frame, which channels carry the most RE (Radio Element)?
Answer: D

Question No : 15

The reception of the primary synchronization signal depends on the sequence transmitted from the synchronization signal
A. True
B. False
Answer: B
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