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common channel signalling signalling systems link the variety of switching systems transmission systems and subscriber equipments in
it is uneconomic to provide adequate equipment to carry all the traffic which could possibly be offered to a telecommunication system in a telephone
q illustrate working of application layeras the highest layer in osi reference model application layer provides services to users of
q explain working of presentation layerthis is concerned with format of the data represented in order to overcome difference in representation of
q what is session layersession layer is used to allow users to identify themselves when waiting access to the network this is concerned with setting
q explain basic working of transport layerit is responsible for establishing a network independent communication path appropriate for the specific
q what layers are covered under end to end layer connectivitylayers 4-7 of iso-osi reference model communicate with peer entities in end systems in
q what do you understand by common controlin some switching systems control subsystem may be an integral part of switching network itself such system
q explain the importance of distributing framesbasically four levels of cabling are used as displayed in figure at the subscriber end drop wires are
q how does one arrive at the probability of availability of free lines during busy hour how can this be improvedans one can arrive at probability of
q explain standard set of procedure used in completing a callcompleting a local telephone call between two subscribers linked to the same telephone
q tone used in stronger telephonydial tone this tone is used to specify that exchange is ready to accept dialled digits from subscriber subscriber
a mixture of calcium sulfate caso4 and calcium uranate cauo4 contains 10 sulfur by mass what is the mass percentage of uranium in the
when i read the details of how a transformer works and apply those rules to a transformer where the primary core cross-sectional area is twice that
state about csmacait belongs to a class of protocols known as multiple access methods csmaca stands for carrier sense
explain about csmacd it is an access method used mainly with lans configured in a bus topology with csmacd any station node can transmit a message to
what are the end-to-end layers of osi structurethe layers 4-7 of iso-osi reference model communicate with peer entities in end systems there is not
what are the categories of radio communication1 sky wave or ionosphere communication2 line-of-sight los microwave communication limited by
explain mechanisms of propagation of radio communicationradio communication deals with electronic radiation of electromagnetic energy from one point
what are wired and wireless transmission systems transmission systems modern long distance transmission systems can be placed under three main
explain time division switching time division switching a switching element can be shared by number of
what are the advantages of store program control i easy to maintainii easy to controliii wide range of services can be provided to customersiv
determine the approaches to organizing stored program controlthere are 2 approaches to organizing stored program control1 centralized in this
what is store program control spc in stored program control systems a set of instructions or program
graphics adapters video card converts digital output from computer into an analog video signal and transmits the signal through a cable to monitor