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What are the Internal Threats Internal security problems are probably the most common. One never knows what someone is going to do. Even the most loyal employees or workers can
What is Frequency borrowing In the simplest case, frequencies are taken from adjacent cells by congested cells. The frequencies can also be assigned to cells dynamically.
In OSI 7 layer model, a header, or possibly a trailer, can be added to the data unit at each layerI 7 layer, but we will define a simple virtual packet which contains only 8bit dat
Q. Show Coaxial Cable Connectors? - A most common is barrel connector (BNC) - T-connectors are utilized to branch off to secondary cables - Terminators are necessary for
TCP Connections TCP is an end to end point to point transport used in internet. being a point to point protocols means that there is always s single sender a single
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
The major features of TCP are following: Reliability : TCP ensures that any data sent by a sender arrives at the destination as it was sent. There cannot be any data loss or mo
Take the maximum packet lifetime, T. It's stated that T must be big enough to make sure the packet and its ACK have vanished. Why do we have to have the ACK?
5. Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frame are 25 bytes long. Calculate the efficiency of Stop-and-Wait ARQ in a system t
Q. Illustrate Transport Layer Responsibilities ? - Process-to-process delivery of whole message - Port addressing - Segmentation and reassembly - Connection control co
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