Q1. SMS broadcast is done over which channel

1. SDCCH2. BCCH3. TCH4. A & C

Q2. The parameter number of Slot Spread Trans (SLO)(BTS) is used to allocate a number of CCCH blocks for .

a) Paging Channel (PCH)b) Random Access Channel (RACH) c) Access Grant Channel (AGCH)d) Traffic Channel

Q3. Which of the following comment is true?

a) MAIO step is used to avoid intra-cell interference where as HSN is used to avoid inter-cell interferenceb) HSN is used to avoid intra-cell interference where as MAIO step is used to avoid inter-cell interference c) Both MAIO step and HSN are used to avoid intra-cell interference.d) Both MAIO step and HSN are used to avoid inter-cell interference

Q4. Timer T200 is related with which KPI

a) SDCCH Completion rateb) Paging success ratec) TCH assignment success rated) All of the above

Q5. Which parameter defines how often paging messages are sent to MS?

a) No of Multi-frames between Paging (MFR) b) Max No of Retransmission (RET)c) No of Slots Spread Transmission (SLO)d) No of Blocks for Access Grant (AG)

Q6. Which parameter is used as a margin to prevent ping-pong location updates?

a) PLMN-Permitted (PLMN)b) Rx Level Access Minimum (RXP)c) Cell Reselect Hysteresys (HYS)d) Handover Margin Level (LMRG)

Q7. Which Parameter describes the minimum received field strength required by an MS to get any service from the network in that cell in Idle mode?

a) PLMN-Permitted (PLMN)b) Rx Level Access Minimum (RXP)c) Cell Reselect Hysteresis (HYS)d) Direct Access Level (DAL)

Q8. When is location updates carried out?

a) Every time an MS changes its location area under one MSC.b) Every time an MS changes between two different MSCsc) On a periodic basis set by a timerd) All of the above

Q9. Increasing Radio Link Time Out (RLT) from 16 to 24 will improve following KPI

a) SDCCH Completion rateb) TCH Completion ratec) Paging Success rated) All of the above

Q10. If a cell is having TCH congestion, which of the following is true?

a) It is having TCH blockingb) It may have TCH blocking.c) It is having TCH Drop.d) All of the above

Q11. Which of the parameter is set to zero for cyclic hopping?

a) BTS Hopping (HOP)b) Hopping sequence number (HSN)c) MAIO Offset (MAIO)d) All of the above

Q12. What is directed retry?

a) A feature that allows a recovery system to restore a BCCH to its original TRX after fault has been eliminated.b) It is designed to control the traffic load of a frequency hopping radio network in which frequencies are reused tightly.c) It is used in call set up to assign a TCH to an MS from a cell outside the serving cell due to TCH congestiond) None of the above

Q13. Which of the following is measured as BER?

a) Received Signal Quality (RX QUAL)b) Speech Quality Index (SQI)c) Voice Qualityd) All of above

Q14. Polarization is characterized by

1. Direction of Magnetic Field2. Direction of Electric Field3. Direction of Electromagnetic Field4. None of Above.

Q15 Which one is correct for TMA, TMB and Repeater?

1. Amplifies U/L, Amplifies D/L, and Amplifies both.2. Amplifies D/L, Amplifies U/L, and Amplifies both.3. Amplifies U/L, Amplifies D/L, and Amplifies U/L.4. Amplifies U/L, Amplifies D/L, and Amplifies D/L.

Q16 Define Beam width of Antenna?

1. Angular distance between the points on two opposite sides of the peak direction where the radiation intensity drops to the 1/2 of the peak intensity.2. Angular distance between the points on two opposite sides of the peak direction where the radiation intensity drops to the 1/3 of the peak intensity.3. Angular distance between the points on two opposite sides of the peak direction where the radiation intensity drops to the 1/4 of the peak intensity.4. Angular distance between the points on two opposite sides of the peak direction where the radiation intensity drops to the 1/8 of the peak intensity.

Q17 From which technique we cancel the effect of Rayleigh Fading?

1. Antenna Hoping.2. Frequency Hoping.3. Antenna Diversity.4. MAIO.

Q18 If HLR=5 Million subs, VLR/HLR=0.7,mErl/Sub=30.Then how much Capacity is required to cater the subscriber in RF for 70% utilized Network.

1. 150 K Erl2. 300 K Erl3. 135 K Erl4. 165 K Erl

Q19 Electrical Tilt antenna limits coverage through?

1. Tilting of Dipoles.2. Inserting Phase Shift.3. Inserting attenuation.4. None of the above.

Q20 Which Antenna has the highest front to back Ratio?

1. Loop2. Yagi3. Dipole4. Parabolic

Q21 Select relation between forward power and Reflected Power if load is not connected?

1. VSWR=12. VSWR=3. VSWR=04. VSWR=1/2

Q22 What is the difference between splitter and coupler?

1. Even Distribution of Power in coupler and uneven distribution in splitter.2. Uneven Distribution of Power in coupler and even distribution in splitter.3. Even Distribution of Power in both.4. Uneven Distribution of Power in both.

Q23. What are mobility management states in GPRS?

1. Idle,Standby,Ready2. Dedicated,Standby,Ready3. Idle,Dedicated,Standby4. None of above

Q24. Which modulation is used for EDGE above MCS-4

1. QPSK2. GMSK3. 8PSK4. PSK

Q25. What does SGSN stands for?

1. Serving Gateway Support node2. Serving GPRS Support node3. Serving GMSC Support node4. None of the above

Q26 In dedicated mode, SMS comes on which channel?a) SDCCH.b) SACCH.c) FACCH.d) None of the above.

Q27 In Dedicated Mode, MS receives which system info. Messages?

1. System Info 1, 2, 3.2. System Info 1, 2, 3,4,13.3. System Info 5, 6.4. None of the above.

Q28 Freq used in Uplink of Satellite communication is higher while in GSM it is lower. Why?

1. Loss freq.2. Loss 1/freq.3. Loss sqr(freq)4. None of the above.

Q29 AMR is used to improve?

1. SQI2. Downlink quality.3. Uplink Quality4. None of the Above.

Q30 In Idle Mode, MS receives which system info. Messages?

a) System Info 1, 2,3.b) System Info 1, 2, 3,4,13.3. System Info 5, 6.d) None of the above

Q31 The Common Control channel multiframe consists of?1. 51 time slots.2. 50 timeslots3. 4 Time slots4. 9 Time slots

Q32 Which of the following are true?

1. Type 1 Paging: can address up to 2 mobiles using either IMSI or TMSI.2. Type 2 Paging: can address up to 3 mobiles, one by IMSI and the other 2 by TMSI.3. Type 3 Paging: can address up to 4 mobiles using the TMSI only.4. All of the above.

Q33 In GSM while performing handover

1. The MS breaks connection from source cell and then tunes on the target cell.2. The MS continues connection from the source, tunes on the target and then releases the source cell.3. MS gets paging message from the target and replies it on its RACH and gets TCH allocated.4. MS gets paging message from the target and replies it on its RACH and gets SDCCH allocated.

Q34 If E-RACH is used then which of the following is true?

1. GSM range will increase beyond 35Km2. It will increase no of RACH channels and release congestion on RACH.3. SDCCH assignment will improve.4. All above are false.

Q35 In dedicated mode the BTS receives handover command on?

1. TCH2. SDCCH3. SACCH4. FACCH

Q36 The duration of a single timeslot is?

1. 4.615 ms2. 1250 ms3. 0.577 ms4. 156.25 ms

Q37 Modulation used in GSM radio interface is?

1. Phase shift keying (PSK)2. Gaussian Minimum shift Keying (GMSK)3. Frequency modulation.4. 8PSK.

Q38 TIE stands for?

1. Terminal Equipment identifier2. Transcoder Input Erlang3. TRX identifier for Edge TRX4. None of the above

Q39 As per GSM Standard in case of frequency hopping the C/I value should be at least?

1. 3 dB2. 6 dB3. 9 dB4. 12 dB

Q40 In inter BSC handover the handover is controlled by?

1. GMSC2. MSC3. Source BSC4. Target BSC

Q41 The maximum no of neighbors that can be defined with a cell is?

1. 82. 163. 324. 64

Q42 The permissible value of VSWR for feeder cable is?

1. < 1.32. >1.33. > 14. Priority Level2. Load Factor >= Priority Level3. Load factor < Priority Level4. Load Factor