What is meant by delay and blocking criteria in telecommunication?
[3 marks]Given that MTBF = 2000 hrs and MTTR = 4 hrs. Calculate the unavailability for single and dual processor systems for 10 years and 30 years. Explain level 1, level 2 and level 3 processing of distributed SPC in
[4 marks]07 detail.
[ marks]Compare single stage and multi stage switching networks.
[3 marks]An exchange serves 4000 subscribers. If the average BHCA is 24000 and the CCR is 50%, calculate the busy hour calling rate.
[4 marks]Tabulate the difference between circuit and message switching with diagram.
[7 marks]Explain the TST switch with neat diagram and its features.
[7 marks]Calculate the number of trunks that can be supported on a time multiplexed space switch, given that: (1) 64 channels are multiplexed in each stream; (2) Control memory access time is 50 ns; (3) Bus switching and transfer time is 50 ns per transfer.
[3 marks]Compare In-band and Out-band signaling in telecommunication.
[4 marks]Explain numbering and charging plans for telecommunication in detail.
[7 marks]With help of a bar graph, explain typical telephone traffic pattern of an urban area on a working day and define different busy hours.
[3 marks]Explain briefly with neat diagrams, the centralized switching and distributed switching.
[4 marks]Explain the N Х Nthree stage switching network. Draw the Lee’s graph to discuss its blocking probability.
[7 marks]Define: Erlang, Time Consistent Busy Hour, and Grade of service.
[3 marks]Discuss operations of load sharing and synchronous duplex mode of stored program control.
[4 marks]Discuss the network and protocol architecture of signaling system No.7.
[7 marks]Distinguish In-channel signalling and Common control signalling?
[3 marks]Explain subscriber loop system.
[4 marks]Explain DMS-100 switching system with necessary hardware and software architecture.1
[7 marks]List the advantages and disadvantages of CCS (common channel signalling).
[3 marks]Describe fiber optic networks in detail.
[4 marks]Derive an expression for the state probability P(k) using Birth-Death model.
[7 marks]What is Erlang loss system? Name three models of the loss system.
[3 marks]Describe satellite-based data networks in detail.
[4 marks]Explain input, output and memory-controlled time division space switching with proper diagrams.
[7 marks]