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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
What is a Management Information Base (MIB)? A Management Information Base is part of each SNMP-managed device. Every SNMP agent has the MIB database that having information ab
Q. Define layered network model? - The OSI Reference Model is collection of seven layers every specifying particular network functions. - The process of breaking up the func
In HTML, a tag shows the browser what to do. When you write an HTML page, you enter tags for lot of reasons -- to change the appearance of text, to show a graphic, or to make a co
What is the role of IEEE in computer networking? IEEE, or the Institute of Electrical and Electronics Engineers, is an organization composed of engineers that issues and manage
What is redirector in Networking? Redirector is software that intercepts file or prints I/O requests and changes them into network requests. This comes under presentation layer
What is CRC The CRC is computed while transmission and appended to output stream as soon as last bit goes out onto wire. If the CRC were in header, it will be necessary to make
How many timers does IGRP has
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What are the two types of Transmission Technology available in ccna? Ans) Point - to - Point and Broadcast are the Two types of Transmission Technology available in CCNA
What is a jam signal A jam signal is broadcasts to network by the transmitting stations that detected the collision to ensure that all stations know of the collision. Every st
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