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Networks classification
Network classification are broadly based on these two basic approaches transmission technologies.
Classification based on Transmission Technology
Computer network can be broadly categorized into two types based on transmission technologies.
Point to point Network
In point to point network data of messages from one host is transmitted over to other host ( which are connected ) either director indirect. They are not intended to other. In direct link hosts are directly connected via a physical communication medium during data transfer. In indirect link the data is transferred over intermediate IMPs unit it reaches to destination host. Here the data from incoming line arrive at the intermediate IMPs( internet messaging program) which store it and waits for free l link. If it find free link the data is sent over it otherwise it sends over next intermediate IMPs. This process is repeated until the data is received by the destination host. A communication systems supporting point to point network is defined as point to point store and forward or packet switch subnet.
Time out The protocols name Go Back N is derived from the sender behaviour in the presence of lost or overly delayed packets. A timer will again be used to recover
At the minimum level most networks sends individual packets of data and the network needs each packet to follow an exact format dictated by the hardware, which is known service par
Options Negotiation To use any of the options first requires option negotiation between the client and server. Four control characters are used for this purpose.
Random effects are the effects attributable to an infinite set of levels of the factor, of which only the random sample occur in the data. For example, the investigator may want t
Name various types of guided and unguided transmission media. If you are connecting your office computers through a local area network which transmission media would you use? Why?
MULTICASTING : The answer to above problem is multicasting. It is the normal form of broadcasting. It acts like broadcasting however it does not broadcast frames automatically
features
DNS ID hacking The Dns use ID system in order to keep track of each every request and replies. In order to spoof the DNS’s response, the hacker needs to do ID Hacking. In orde
how signals are transmitted in telecommunications
Q. Data Link Layer Responsibilities? - Defines frames into manageable data units - Physical addressing - Flow control - Error control - Access control Nod
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