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The Network layer is used to route physical data to the destination point, it decides the actual path from where data travels to destination point. The network layer supports both Connection oriented and connectionless services.
Today, the modern computers are multitasking and at a time different applications try to send and receive data so the Transport layer is given the charge to convert all the data that is received from the application into packets and these packets have headers which contains the information such as where to send the data etc. But Transport layer provides the physical path of sending data so; it is difficult to combine these two layers into one.
a) What does the "CD" mean in the CSMA/CD? How is it implemented in the Ethernet? b) Consider an Ethernet hub with 8 ports and an Ethernet switch with 8 ports. In both cases
MAC (media access control) and LLC (logical link control) are both layer 2 protocols.
Q. Why it is essential to have layering in a network? Ans: A computer network is a very complicated system. It becomes very hard to implement as a single entity. The layered ap
Virtual Private Network ( VPNs) When we use the internet or the risks to the security of our data arise. The solve the security problem a virtual private network used for
Explain Client/Server Networking Model. A networking model where one or more powerful computers (servers) give the dissimilar network services and all other user's computers (
Ask Design private subnetworks (using Class A range for CIDR) for each domain as in the table below, and complete the table. Hints: Consider how many network bits are required to a
Describe the term Disaster Management as security threats Making and testing backups regularly could be the simplest and easiest of all the security measures. But a new questio
Explain the Multipath resistance The chipping codes used for CDMA not only exhibit low cross-correlation but also low autocorrelation. Thus, a version of the signal that is del
Compare Error Detection and Error Correction: The correction of errors is more difficult than the detection. In error detection, checks only any error has happened. In error co
Q. Show the Character-level Encryption? - Substitutional - Monoalphabetic - simplest form; also called Caesar cipher - Every character is replaced with another character
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