1) Which channel is used to transmit random access signals? BCCH CCCH Correct! SDCCH TCH 2) Which one of the following is the combination of main BCCH? TCH+SACCH FCH+SCH+BCH+CCCH Correct! SDCCH/8+SACCH/8 FCH+SCH+BCH+SDCCH+SACCH 3) The Value Range of Timing Advance (TA) in GSM is? 0-31 0-127 0-63 Correct! 0-7 4) How many MS can be paged with 1 paging massage with IMSI? 1 2 Correct! 3 4
5) Directed Retry handover means? TCH to TCH SDCCH to TCH Correct! SDCCH to SDCCH None of Above 6) How many neighbors are measured by MS at a time? 5 6 Correct! 7 8 7) Time Duration of Super Frame? 3 Hour 28 minutes 53 seconds 760 ms 6.12 seconds Correct! 235.65 ms 120 ms 8) Maximum number of characters allowed in one SMS? 160 Correct! 170 180 150
9) If you have 5 MHz frequency band what will be the maximum number of channels as per GSM system? 25 Correct! 35 20 24 10) Which kind of Handovers more desired in the Network? Rx Level Power Budget Correct! Rx Quality Interference 11) SDCCH holding time for Normal location update is 3.8ms 3.5sec Correct! 3.5ms None of them 12) SDCCH holding time for call setup (MOC) is 2.7sec Correct! 3.5sec 2.7ms 3.5ms
13) Same BCCH-BSIC combination in adjacency will lead Will not cause any problem. Massive Handove failaur Call drop B & C Correct! 14) What is the reason of ping-pong handover Cable swap No dominant cell coverage Improper handover margine All of above Correct! 15) If there is interference on the BCCH TRx and the call is going on at the hopping Trx Call will drop Call will be unafected Correct! Call will attempt handover due to this interference None of above
16) If in a cell all KPI is going well but its TCH drop is high, there is no any RF and hardware issue then this TCH drop will be due to Transcoder fail Correct! Lapd fail A&B None of them
17) Which system informations are used in idle mode System information 1,2,3,4,7 & 8 Correct! System information 1,2,3,4,5,6,7 & 8 System information 1,2,3,4,5,6,9 & 10 System information 1,2,3,4,5,6,7,8,9,10,11,12 & 13 18) Which system informations are used for BA list System information 1,2,3 & 4 Correct! System information 5,6,8,9,10 & 12 System information 12 & 13 None of them 19) Which system informations are used for MA list System information 13,10,9 & 4 System information 5 & 6 Correct! System information 12 & 13 None of them 20) Which system informations are used for GPRS System information 9 & 4 System information 5 & 6 System information 12 & 13 Correct! None of them
