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Updated: Jul 31, 2026

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Huawei H31-421-ENU Exam Overview:

Certification Vendor:Huawei
Exam Name:HCIP-LTE (Huawei Certified ICT Professional - LTE)
Exam Number:H31-421-ENU
Passing Score:600/1000
Real Exam Qty:60-70
Related Certifications:HCIA-LTE
HCIP Wireless Network
HCIE Wireless
Exam Price:USD 200 (varies by region)
Exam Duration:90-120
Exam Format:Multiple Choice, Multiple Response, True/False, Drag and Drop
Certificate Validity Period:3 years
Available Languages:English, Chinese
Recommended Training:Huawei eLTE Training Courses
Exam Registration:Huawei Talent Certification Portal
Sample Questions:Huawei H31-421-ENU Sample Questions
Exam Way:Computer-based exam (online or authorized test center)
Pre Condition:Recommended: HCIA-LTE or equivalent LTE fundamentals knowledge
Official Syllabus URL:https://e.huawei.com/en/talent

Huawei H31-421-ENU Exam Syllabus Topics:

SectionObjectives
LTE System Architecture- EPC (Evolved Packet Core)
  • 1. MME, SGW, PGW roles
    • 2. Core network architecture
      - E-UTRAN Overview
      • 1. eNodeB functions and interfaces
        • 2. Radio access network structure
          QoS and Service Management- Policy Control
          • 1. PCRF functions
            • 2. Traffic prioritization
              - Bearer Management
              • 1. EPS bearer concepts
                • 2. QoS Class Identifier (QCI)
                  Mobility Management- Handover Procedures
                  • 1. Inter-RAT mobility
                    • 2. Intra-LTE handover
                      - Tracking and Location Update
                      • 1. Paging mechanism
                        • 2. TAU procedures
                          LTE Network Optimization and Troubleshooting- Fault Diagnosis
                          • 1. Network KPIs monitoring
                            • 2. Signaling analysis
                              - Performance Optimization
                              • 1. Coverage and capacity tuning
                                • 2. Interference analysis
                                  LTE Air Interface Fundamentals- Physical Layer Procedures
                                  • 1. Channel coding and multiplexing
                                    • 2. Synchronization and reference signals
                                      - OFDM / SC-FDMA Principles
                                      • 1. Resource block structure
                                        • 2. Uplink and downlink modulation

                                          Huawei HCIP-LTE (Huawei Certified ICT Professional-LTE) Sample Questions:

                                          1. There are several ways to configure eNodeB, such as GUI mode, MML command mode and Summary acquisition mode.

                                          A) True
                                          B) False


                                          2. NAS signaling is exchanged between which of the following two network elements? (Multiple choice)

                                          A) UE
                                          B) S-GW
                                          C) MME
                                          D) eNodeB


                                          3. Which of the following message carries configuration information of public channels?

                                          A) MIB
                                          B) SIB3- SIB8
                                          C) SIB1
                                          D) SIB2


                                          4. When RAN sharing function is not used, the parameter "Carrier Type" in the ADD CNOPERATOR command should be set to "Primary Carrier".

                                          A) True
                                          B) False


                                          5. What is the purpose of the Path Switch Request process?

                                          A) Request to switch the upstream GTP tunnel endpoint from one endpoint to another (from eNodeB to SGW)
                                          B) Request to switch the downstream GTP tunnel endpoint from one endpoint to another (from SGW to eNodeB)


                                          Solutions:

                                          Question # 1
                                          Answer: A
                                          Question # 2
                                          Answer: A,C
                                          Question # 3
                                          Answer: D
                                          Question # 4
                                          Answer: A
                                          Question # 5
                                          Answer: B

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