it's multiple choice questions

Which one is the correct order for the assignment of channels? O a PCH-TCH-SDCCH-SACCH O b. RACH-PCH-SDCCH-TCH-SACCH OC SACCH-RACH-PCH-SDOCH-TCH O D. PCH-RACH-SDCCHETCH-SACCH to SDCCH-PCH-RACH-TCH-SACCH What is the major difference between circuit switched network and packet switched network? O a Circuit switched is performed by analog switch centers while packed is digital O b. Circuit switched uses time slots all the time while packet switch uses only when there is packet Oc Circuit switch networks provide much more data speeds compared to packet networks. OD. Circuit switched network uses twisted pair copper cable while packet switch uses fiber optio. Oto Circuit switched uses the bandwith and the channels efficiently while packet switch not. Measurements are sent during active mobile communication to initiate a. Location Update O b. Handover Oc Cell Reselection O D. Authentication O to. HLR interrogation Which of the statements below are correct? 1. To determine what type of the called number is called HLR interrogation II. Data link establishment between MS and SGSN is called PDP context activation III. VLR copies the data for the incoming subscribers from HLR. IV. AUC checks if the mobile equipment is legal or not. O a. III and IV O b. ll and ill O and I OD and Which of the statements below are correct? 1. To determine what type of the called number is called HLR interrogation 11. Data link establishment between MS and SGSN is called PDP context activation , III. VLR copies the data for the incoming subscribers from HLR. IV. AUC checks if the mobile equipment is legal or not. O a II and IV bland all Oc and OD and Which couple do not match regarding the concerns for IP networks and how it is handled O a Verification - 4 ways handshake cookies O b. Data Volume - Transmission line O c None O D. Availability of service - Redundancy Oto. Data rate - Repeater Which one is not one of the purposes of location update 1. To locate the subsriber 11. To prevent call drops Ill. To distribute HLR load to VLRS IV. To maintain consistent VLR database Receiver is reading the bits at the half point. If we send 8 bits between synchronization flags and suppose the receiving device is 9% slower or faster than its transmitting counterpart, at which bit the receiver will start decoding wrong? First sampling point Start space O a. 6th bit O b.8th bit Handover commands are sent through channel O a SACCH O b. SDCCH O c BCCH O D. PCH O to FACCH Which of the statement (s) below are correct? CCITT No 7 does not follow OSI reference model II. CCITT No 7 is developed for mobile communication networks III. CCITT NO7 is for circuit switched networks while SIGTRAN for packet switched networks O a Only O b. only O c. All OD. Only Oto. None If the data rate of the receiver is lower than the sender, the following protocol function manages the problem O a Segmentation and Reassembly Ob. Connection control Oo Ordered delivery control O D. Encapsulation O to. Flow control Which one is the correct order for HLR interrogation? Ask MSC if subscriber busy II. Route the call to the MSC III. B-Number analysis . IV. Ask HLR for the location of subscriber O a III-IV-1-11 O b. IV-1-1-111 CV- OD I-IV-I