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- The model was developed by the ISO (International Organisation for Standardisation) in 1984. It is currently considered the primary Architectural model for inter-computer communications.
- The OSI (Open Systems Interconnection) reference model is a descriptive network scheme. It makes sure greater compatibility and interoperability between various types of network technologies.
- The OSI model describes how information or data makes its way from application programmes (such like spread sheets) through a network medium (such like wire) to another application programme located on another network.
- The OSI reference model divides the difficulty of moving information between computers over a network medium into SEVEN smaller and more manageable problems.
- This separation into lesser more manageable functions is known as layering.
restore the scrambled bits to their original order
Demarcation is the point in which responsibility changes hands.
Q. What is Data traffic? Data traffic Peak data rate : max data rate of the traffic Average data rate = (amount of data)/time Maximum Burst size: max. l
Cost Saving Better performance scalability and viability translates into saving for website operators. Because fewer application web servers are required to meet
What is a Web server? This new model of Client/Server having of thin, portable, "universal" clients that talk to super fat servers. In the easiest form, a web server returns do
A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; inverting bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make the
Consider a simple wireless data link using channel bandwidth of 40 kHz. The transmit power level is 20 dBm, the link attenuation is 40 dB and the SNRdB at the receiver is 20 dB.
what is due care
Hold-Down Timers - Routers ignore network update information for a number of periods.
Your Windows client failed to broadcast to all servers that it has accepted an IP address offer. What step is this in the four-step DORA process? a. Discovery b. Offering c. Reques
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