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Q. Explain physical layer of Osi reference model?
- The physical layer deals among the physical characteristics of the transmission medium.
- It defines the mechanical, electrical, procedural and functional specifications for maintaining, activating and deactivating the physical link between end systems.
- Such characteristics like timing of voltage changes, voltage levels, physical data rates, maximum transmission distances, physical connectors and other similar attributes are defined by physical layer specifications.
- Instances RJ45, EIA/TIA-232 and NRZ
Q. Describe Flow and Error Control Mechanisms? Flow and Error Control Mechanisms - Stop and Wait ARQ - Go-Back ARQ - Selective Repeat ARQ
What is Error Detection? What are its methods? Data can be corrupted during transmission. For reliable communication errors must be deducted and corrected. Error Detection uses
What is Message Oriented Middleware (MOM)? MOM permits general purpose messages to be exchanged in a Client/Server system using message queues. Applications communicate over n
It is one of the models based on PRAM. In this model, the processors access the memory locations concurrently for reading as well as writing operations. In the algorithm, which use
Name the basic components of the router?
Q. Show the Data Encryption Standard? Data Encryption Standard - Bit-level encryption method designed by IBM - Adopted as standard for nonmilitary and nonclassified us
Question: a) Consider the following MIP scenario. Quite a few enterprise networks use private addresses and NAPT for the communication to the Internet. i. Discu
What is the difference between trigger and rule? The triggers are known as implicitly by database generated events, whereas stored procedures are known as explicitly by client
Describe how EIGRP finds its successor and feasible successor?
Satellite Radio Channels A communication satellite links two or more earth microwave transmitter receiver, know as ground stations. The satellite receives transmission on
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