Explain physical layer of osi reference model, Computer Networking

Assignment Help:

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


Related Discussions:- Explain physical layer of osi reference model

Data sharing - fundamentals of networks, Data Sharing One of the most ...

Data Sharing One of the most important uses of networking is to allow the sharing of data. Before networking was common an accounting employee who wanted to prepare a report f

Internet client control task, Internet Client Control Task A distribut...

Internet Client Control Task A distributed system is to be implemented using networked PCs. The role of the system in this task is to implement an environmental control sys

What is bipolar encoding, Q. What is Bipolar Encoding? - Uses three vol...

Q. What is Bipolar Encoding? - Uses three voltage levels negative, positive and zero - Zero level represents binary 0; 1s are represented with alternating positive and negat

Explain the network allocation vector, Network Allocation Vector Timer ...

Network Allocation Vector Timer which shows how much time must pass before a station is allowed to check the channel

Point out the drawbacks of token ring, Point out the drawbacks of Token Rin...

Point out the drawbacks of Token Ring. Few of the drawbacks of Token Ring are: a. Token Ring is very costly. All topology components cost much more than other more popular s

Program annotation packages, A fairly renowned approach in this area is Ope...

A fairly renowned approach in this area is OpenMP, a recently developed industry standard for shared memory programming on architectures with uniform memory access characteristics.

Describe a typical dns system, Question: (a) With the help of a diagra...

Question: (a) With the help of a diagram, describe a typical DNS system. (b) Using signal sequence or state transition diagrams, illustrate the following scenarios: i.

State about data and data files - information, State about data and data fi...

State about data and data files - Information The third and major component of the system liable to be attacked is the data and data files used by the company. It is the most s

Bandwidth allocation , Consider figure.  Assume a new flow E is added that ...

Consider figure.  Assume a new flow E is added that takes a path from R1 to R2 to R6. How does the max-min bandwidth allocation change for the 5 flows?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd