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What are reasons behind using layered protocols
Reasons for using layered protocols, using them leads to breaking up design problem into smaller more manageable pieces and layering means which protocols can be changed without affecting lower or higher ones,
Source to Destination Data Transfer - Datagram approach - Each packet is treated independently. - Every pkt will take its own path to reach the destination. - There i
UDP is connectionless, and does not give error checking. But remember, error checking can happen at other layers too.
Buffering This protocols provides the advantage of buffering to the receiver can buffer any out of order packets after being received by sending acknowledgment when
Networks are more frequently being prepared to allow specification of the quality of service needed by users. For example: - a typical voice telephone call may give a QoS para
Q. Use of Infrared? - Frequencies among 300 GHz and 400 THz - Short-range communication - High frequencies can't penetrate walls - Necessitate line-of-sight propagati
Q. What is an Error? At any time bits flow from one point to another they are subject to unpredictable changes because of interference The interference is able to change the
Private Networks The information routes from one networks to another network through a leased line. If an organization needs privacy can use a private networks or networ
Classification of Access Networks Access networks can loosely be classified into three categories 1. Residential Access 2. Company Access 3. Wireless Access
What is the suggestion of increasing and decreasing subnet Bits?
Method to change Decimal to Binary?
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