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determine about unique least-cost pathif there is a unique least-cost path the two algorithms will yield the similar result because they are both
illustrate the bellman-ford algorithmthe bellman-ford algorithm uses only on information from its neighbours and knowledge of its link costs to
explain the cost of a path between two nodesgiven a network of nodes linked by bidirectional links where every link has a cost associated with it in
state the disadvantages of adaptive routing process 1 the routing decision is more difficult thus the processing burden on network nodes enhances2
what are the advantages of adaptive routing 1 an adaptive routing method can improve performance as realised by the network user2 an adaptive
describe the static routing process a static routing method does not adapt to changing conditions on the network but uses a fixed method developed
suppose there are exactly five packet switches figure 4 between a sending host and a receiving host connected by a virtual circuit line shown as
what is piggybacked ackthe protocol will be incorrect suppose that 3-bit sequence numbers we are using consider following situationa just send frame
what is crcthe crc is computed while transmission and appended to output stream as soon as last bit goes out onto wire if the crc were in header it
how receiver detects errorthe frame is 10011101 the generator is 1001 the message after appending the three zeros is 10011101000 the reminder on
what is horizontal and vertical parity a single error can cause both horizontal and vertical parity checks to be wrong two errors can also be easily
concept of connection between the pc and the cable modemeven if downstream channel works at 27 mbps user interface is nearly always 10-mbps ethernet
what is the full form of fdm and tdmit is both each of the 100 channels is possess its own frequency band fdm and on every channel two logical
what is d-amps d-amps uses 832 channels in every direction with three users sharing a sole channel this allows d-amps to support up to the 2496 users
determine the concept of placing antenna on hieghtfirst starting deployment simply placed cells in regions where there was high density of vehicle or
what are the features of star and ring topologythe three networks have following featuresstar best case is 2 average case is 2 worst case is 2ring
state the process of calculate the drift ratea drift rate of 10-9 means 1 second in 109 seconds or 1 nsec every second at oc-1 speed say 50 mbps for
state the nyquist theoremthe nyquist theorem is thermo of mathematics and has nothing to deal with technology it says that if you have the function
describe about the noiseless channela noiseless channel can transmit an arbitrarily large amount of information no matter how frequently it is
state about the international standardizationthere are many examples certainly some systems for which there is international standardization include
what are the benefits of wireless devicesone benefit is that if everyone uses standard everyone can talk to anyone another benefit is that extensive
what are the drawbacks of wireless devicesone drawback is security every random delivery man who happens to be in building can listen on network
explain in detail about wireless network think about unseen terminal problem imagine a wireless network consist of five stations a through e such
describe about the term- networkif network tends to lose the packets it is better to acknowledge each one of them separately so the lost packets
how lans connected to internetdoubling every 18 months means factor of four gains in 3 years in 9 years gain is then 43 or 64 which leads to 64