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explain lan topologies and its basic topologieslan topologies network topology is a physical schematic that shows interconnection of the various
list all seven layer of osi model and describe function of application layerthe layers of osi model are as follows1 the physical layer it defines an
what are the advantages and disadvantages of packet switching over circuit switchingthe comparison of packet switching and circuit switching
what is the need of modem in data communication need of modem modems are utilized to interface computer networks computers and other terminal
what is a modem modems are fundamentally used to interface digital circuits to transmit information on analogue channels as telephone systems modem
what are the advantages of ccs over in-channel signallingthe advantages of ccs over in-channel signalling are given belowa information can be
explain the ccitt hierarchical structure of routing using block schematicin right-through routing the originating exchange finds the whole route from
what are different control function categories explainin several switching systems the control subsystem may be an integral part of the switching
what are modes of operation of centralized spcin about all the present day electronic switching systems utilizing centralized control only a
compare electromechanical switching system with electronic switching systemcomparison of electromechanical switching system with electronic switching
explain new services of cpu based exchangethese new services are termed as supplementary services and several of the prominent ones are given
explain hybrid network in standard telephone hand sethybrid network the hybrid network sometimes termed as a duplex coil or hybrid coil in a
explain register markerregister marker strowger selectors doing searching and countingconversely the crossbar switch has no intelligence something
explain stored program controlstored program control modern digital computers utilize the stored programmed idea now a program or a set of
explain common controlcommon control those systems wherein the control subsystem is outside the switching network are termed as common control
explain the term progressive controlprogressive control step by step system is an illustration of progressive controlthe connection is established in
busy hour traffic is thea maximum average simultaneous trafficb traffic during peak hourc traffic when all subscribers are engagedd
side tone is the speech heard bya the receiving subscriberb both the receiving and calling subscriberc by on lookerd by calling
the electro mechanical switch developed in 1938 had fewer moving parts than earlier switchesa no
ethernet 10 base 2 is an example of network topologya
aan network is typically a company network that connects multiple company locations into a
using arq a sending modem must wait for a return ack for each sent block before sending the next
when a switch capacity is full calls coming into that switch are said to be a
using each connected device is assigned a time slot whether or not the device
typical human voice is centered around hza