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refining the ratio analysis basically refinement leads to purity thus to get a cleaner more understandable and consistent design need to iterate
analysis iteration to understand any problem completely you have to repeat task which implies that analysis requires repetition first just get
every computer connected to internet has a unique address lets just say your ip address is 1234 and you want to send a message to computer with ip
q show the ranges of port numbersport numbers are divided into three ranges well-known ports are those from 0 through 1023 registered ports are
operations from functions as we know function is actually operations on object these functions could be simple and summarized on object model
q what is unique port numbera port is an extra 16-bit number which uniquely identifies particular service on any given machine on internet port
operations from events during analysis events which are sent to target objects an operation on these object are presented as labels on transitions
what is domain explain domain can be an apartment complex a town or even a country sub-domains can correspond to organizations like tutorsglobe
adding operations of describe function whenever take a look at the operations in oops you find queries about attributes or associations in object
q what do you meant by hostshosts are in general individual machines at a specific location resources of a host machine is generally shared and can
structure of internet servers addressstructure of an internet servers address keyed into a clients software is as below:
specifying optimisation criteria specify values to be minimized maximized or optimized you can understand it as way you normalize data in database
q show the example of internet addressthe following can be a typical person understandable address on internetvvs expertsmindusvvs is an username
define constraints constraints can be defined as preconditions input values and post conditions output values preconditions on functions are
addresses are basically for virtually everything we do on internet the ip in tcpip is a mechanism for providing addresses for computers on internet
q is tcp connection-orientedtcp is connection-oriented this means a connection is established between source and destination machines before any data
the main features of tcp are reliability tcp makes sure that any data sent by a sender arrives at destination as it was sent there cant be any data
q show the transmission control protocoltransmission control protocol tcp tcp makes internet reliable tcp solves many problems which can occur in a
q can you explain about internet protocolinternet protocol specifies the rules which define the details of how computers communicate it specifies
a communication protocol is an agreement which specifies a common language two computers use to exchange messages for instance a protocol specifies
q what is cable modemone more way of accessing internet currently being developed is use of cable modems these require that you subscribe to a cable
the most expensive method of accessing internet is to use leased lines which connect directly to the isp this will increase access rate to anywhere
whole idea of isdn is to digitize the telephone network to permit transmission of video audio and text over existing telephone lines the purpose of
q what is internet service providersnobody truly owns the internet however it is maintained by a group of volunteers interested in supporting this
before we can use internet we have to gain access to it this access is achieved in one of numerous ways above all the internet is a collection of