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QUESTION
a) List the seven layers of the ISO-OSI model and briefly describe the role of each layer
b) Describe the functions of the following intermediate systems-
c) Assume six devices are arranged in a mesh topology
How many cables are needed?
How many ports are needed for each device?
Selective Repeat ARQ - Processing at the receiver additionally complex - The window size is reduced to 2(m-1) (2m/2 at most) - Both the transmitter as well as the receiv
Q. Host System in TCP-IP model? - Standards adopted because of widespread use like (Internet) - The protocols came first plus the model was really just a description of the
Describe about the term- network If network tends to lose the packets, it is better to acknowledge each one of them separately, so the lost packets could be retransmitted. On t
Q. Physical Layer Responsibilities of osi model? - Physical characteristics of interfaces as well as media - Representation of bits with no interpretation - Data rate is
What everyday object is the same as The RAM function to the computer?
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.
Explain is the concept of routing tables?
File servers are useful for sharing files through a network. With a file server, the client passes requests for file records over network to file server
Introduction An algorithm is defined as a series of computational steps required to accomplish an exact task. The algorithm works for a given input and will terminate in a well
How many dissimilar types of subnet classful networks are present?
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