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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
determine about the tcpip and osi modelboth models are based on the layered protocols both comprise network transport and application layer in both
define the term - frame and packetsframes sum up packets when a packet arrives at data link layer the complete packet header data and remaining all
explain the meaning of negotiationnegotiation is process of getting both sides to agree on some values or parameters to be used during communication
state the difference between byte streams and messagebyte streams and message are different in a message stream network keeps track of the message
what is connection-oriented communicationconnection-oriented communication can be in three phases in establishment phase a request is made to set up
what are reasons behind using layered protocols reasons for using layered protocols using them leads to breaking up design problem into smaller
explain the concept of router-root paththe mean router-router path is double the mean router-root path number levels of tree with root as 1 and the
what are the call routerscall routers a b c d and e there are ten potential lines ab ac ad ae bc bd be cd ce and de each of these lines has four
describe the main factors of switching delayno the speed of propagation is 200000 kmsec or 200 metersmicrosec in 10 microsec signal travels 2 km
what is uniform delivery timea uniform delivery time is required for voice so amount of jitter in net- work is significant this could be expressed as
state about transcontinental bera transcontinental ber link may have many gigabitssec of the bandwidth but latency will also be high due to speed of