4G LTE Certification Exam Questions

To check your knowledge of 4G LTE for any LTE Certification Program, here are some sample questions. These questions will help you to test your understanding of LTE technology. It’s not Nokia, Ericsson, Qualcomm, or Huawei specific, but these are general technology-based questions

1. Interface between  PGW & PDN is:

1. Gx
2. SGi
3. S6a
4. S11

2. RRM management in LTE performed by:

1. eNodeB
2. PGW
3. SGW
4. MME

3. Total number of subcarriers in 10 MHz bandwidth:

1. 900
2. 600
3. 300
4. 84

4. Guard in LTE bandwidth is:

1. 2 MHZ
2. 5 MHZ
3. 3 MHZ
4. 2.5 MHZ

5. Most popular band in LTE

1. Band 15
2. Band 12
3. Band 21
4. Band 7

6. Flexible bandwidth concept is in

1. GSM
2. WCDMA
3. LTE
4. EVDO

7. IP allocation to UE performed by:

1. SGW
2. PGW
3. PDN
4. eNodeB

8. OFDMA concept is used in :

1. DL & UL
2. UL only
3. DL only
4. None

9. To lower power consumption of UE which concept is used:

1. SCFDMA
2. OFDMA
3. MIMO
4. All of the above

10. Each carrier in LTE is of:

1. 120 khz
2. 150 khz
3. 180khz
4. 200 khz

11. Rank Indicator defines:

1. No. of spatial layers
2. No. of antennas
3. Type of modulation
4. All of above

12. Duration of  LTE frame:

1. 5msec
2. 10msec
3. 20 msec
4. 40msec

13. In case of NCP , total symbols used are:

1. 6
2. 5
3. 7
4. 8

14. Total no. of PCIs in LTE

1. 512
2. 204
3. 368
4. 504

15. Total groups in PCIs

1. 150
2. 168
3. 172
4. 160

16. When DL reference signal is obtained, mobile can decode

1. PSCH
2. PDCCH
3. PBCH
4. PDSCH

17. Priority allocation of subframes is known as

1. Resource allocation
2. Scheduling
3. Intelligent scheduling
4. Priority based assignment

18. Buffer Status report is send by:

1. eNode B
2. UE
3. MME
4. None

19. Fractional frequency reuse:

1. 1/3^rd BW reused at cell edge
2. Entire BW reused
3. No frequency reuse
4. All

20. Channel Raster in LTE is of

1. 200 khz
2. 100khz
3. 20 khz
4. 2 mhz

21. Which layer is not present in EUTRAN

1. RLC
2. PDCP
3. MAC
4. BMC

22. Who performs header compression:

1. RLC/MAC
2. NAS
3. AS
4. PDCP

23. Cell reselection is in which mode:

1. RRC connected
2. RRC idle
3. Both
4. None

24. Tx and reTx interval in HARQ is

1. 10msec
2. 5msec
3. 8msec
4. 12msec

25. Total QCI classes in LTE

1. 9
2. 8
3. 7
4. 12

26. Max periodicity of SRS signal is

1. 320 msec
2. 180msec
3. 80 msec
4. 20 msec

27. Total number of neighbors in LTE 

1. 32
2. 64
3. 36
4. 46

28. AS security deals with

1. UE-eNodeB security
2. UE-MME security
3. UE-SGW security
4. UE-PDN security

29. Cell specific information is stored in:

1. MIB
2. SIB
3. Both
4. None

30. Dynamic BCH has information about

1. PBCH
2. PDSCH
3. PSCH
4. PDCCH

31. TM 2 is for:

1. Diversity
2. SISO
3. MIMO
4. 4*4 MIMO

32. RIM is:

1. Radio information manager
2. RAN information management
3. Radio information management
4. None

33. GUTI is of:

1. 128 bits
2. 48 bits
3. 80 bits
4. 32 bits

34. Range of femto cell

1. 20 m
2. 10 m
3. 100 m
4. 40 m

35. Fourier transform will change:

1. Time domain to frequency
2. Frequency domain to time
3. Time to space domain
4. Space to time domain

36. One RB carriers how many subcarriers

1. 15
2. 18
3. 21
4. 12

37. MIB is transmitted every

1. 10msec
2. 50msec
3. 40msec
4. 12msec

38. Error correction is through:

1. ARQ
2. MAC
3. RRC
4. LLC

39. TB is:

1. Transmission block
2. Transport block
3. Time block
4. Transmission bit

40. Total number of RB in 20 MHz

1. 40
2. 50
3. 80
4. 100