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What is Stop-and-Wait Protocol?
In Stop and wait protocol, sender sends single frame, waits unless it receives confirmation from the receiver (okay to go ahead), and then sends the next frame.
Q. Example on Multiplicative Decrease? w = 1 for (each new ACK received) w = w+1 until (loss detected or w >= ssthresh) Not so slow - Exponential increase
What are the issues there in network environment Some of the issues necessary are: Network planning should be carried out covering the following important issues:
What is the difference between a straight-through and crossover cable? A straight-through cable is used to connect computers to a hub, switch, or router. A crossover cable is u
Quetion: A photodiode with a dark current of 10 nA has a responsivity of 0.4 A/W at a certain wavelength. What current flows through the photodiode when it is reverse biased an
Error Detecting Code - Parity bit: The general idea for achieving error detection and correction is to add some redundancy (i.e., some extra data) to a message, which receiver
What is the disadvantage of a star topology? One major drawbacks of star topology is that once the central hub or switch get damaged, the whole network becomes unusable.
High Availability Oracle web cache supports content aware load balancing and fail over detection. The features ensure that cache messes are directed to the most avai
Question : (a) Several techniques are now available for users to connect to the Internet. (i) A modem is commonly used to dial up to the Internet. Why is a modem needed fo
Ans) UDP TCP SPX
Q Illustrate Return to Zero encoding? - In NRZ-I long strings of 0s may still be a problem - May comprise synchronization as part of the signal for both 1s and 0s - How?
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