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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
explain how the lan model be developedthe lan model can be developed incrementally if lan is just a long cable it cannot be brought down by single
determine the rate of communication linethe dog could carry 21 gigabytes or 168 gigabits a speed of 18 kmhour that is equal to 0005 kmsec the time to
discuss about the hypertextthe hypertext allows for the integration of text graphics audio and video on a webpate this can make it very easy to
extranet and intranetan extranet is a type of intranet internal tcpip network that has been selectively opened to a firms suppliers
domain namea domain name is a way to recognize and locate computers connected to the internet this is a text name of a computer in network or
explain about the gopherthe ghoper is a protocol designed to search retrieve and display documents from remote sites on the internet the ghoper
what is telnetit is a protocol or set of rules that uses to connect one computer to another computer in network it is also called as a remote login
what is proxy sever and firewallproxy severalso known as a proxy or application level gateway it is an application that breaks the connection among
what is the gatewaya gateway is a device like a mini or microcomputer capable of operating on a standalone basis but which also gives connection for