Last Updated: Jul 20, 2026
No. of Questions: 195 Questions & Answers with Testing Engine
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: LTE Signaling and Protocols | 27% | - X2AP and S1AP signaling processes - EPS network architecture and interfaces - RRC, PDCP, RLC, MAC layer functions - Intra-LTE and inter-RAT handover procedures - Bearer establishment and management - UE attach, TAU and detach procedures |
| Topic 2: eNodeB Reconfiguration and Maintenance | 13% | - Transmission and device data configuration - Typical scenario configuration adjustment - eNodeB configuration management process - Routine maintenance and performance monitoring - Radio parameter planning and configuration |
| Topic 3: LTE Advanced Troubleshooting | 30% | - KPI analysis and problem location - VSWR and PIM related issues - Interworking issues with 2G/3G networks - Coverage, capacity and interference optimization - Common fault handling workflow - eNodeB transmission fault diagnosis - Antenna and feeder system fault analysis |
| Topic 4: LTE Air Interface | 30% | - Radio interface protocols and architecture - Physical channels, signals and reference signals - MIMO and multi-antenna technologies - OFDMA and SC-FDMA principles - Frame structure and channel structure for FDD/TDD - LTE network evolution and 3GPP standards - Cell search, random access and paging procedures |
1. The ECM and EMM states are independent of each other.
A) FALSE
B) TRUE
2. Using the summary collection table to configure eNodeB, after finish filling in summary tables need to fill needs to import to current area.
A) True
B) False
3. In LTE, OFDMA is for uplink and SC-FDMA for downlink.
A) True
B) False
4. What is the role of ADD NTPC?
A) Configure the frequency synchronization data
B) Configure the clock and frequency server
C) Configure the time server
D) Configure the clock synchronization data
5. Which of the following is a function of UPEU board?
A) -48V DC or + 24V DC input power is converted to support the +12V working power supply
B) Environmental monitoring (including temperature and humidity, flooding, smoke)
C) provide the system clock
D) provide 2 route RS485 signal interface and 8-way switch signal interface, switch input only supports dry contact and OC (Open Collector) input
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: C | Question # 5 Answer: A,D |
Kerwin
Mick
Hugo
Lawrence
Morton
Randolph
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