Briefly write functionalities of different osi layers, Computer Networking

Assignment Help:

Briefly write functionalities of different OSI layers?

The OSI Reference Model includes seven layers. Basic functionality of each of them is as follows:

1. Physical Layer: Controls the transmission of the real data onto the network cable. It explains the electrical signals, line states and encoding of the data and the connector types used. An instance is 10BaseT.

2. Data-Link Layer: This layer takes the data frames or messages from the Network Layer and gives for their actual transmission.

3. Network Layer:  This is responsible for addressing messages and data so they are sent to the correct destination, and for translating logical addresses and names (as a machine name FLAME) into physical addresses.

4. Transport Layer:  Make sure that data is delivered error free, in sequence and with no loss, duplications or corruption.

5. Session Layer: Permit two applications to establish, use and disconnect a connection among them known as a session.

6. Presentation Layer: Verifies the format used to exchange data among networked computers.

7. Application Layer: Provides Applications with access to network services.

 

 


Related Discussions:- Briefly write functionalities of different osi layers

Data communications and networks, A magazine publisher based in Nairobi has...

A magazine publisher based in Nairobi has branch in Kisumu, and one in Mombasa. The company has kept in touch by telephone and courier service. Each office is networked. The networ

State some security models, State some Security Models The first and f...

State some Security Models The first and foremost thing one needs to do is to chalk out a security plan and policy based on any security model. The term security policy shall

One basic component is the network device, QUESTION 1. A system analyst...

QUESTION 1. A system analyst has to install a particular type of topology in a textile industry. (a) Describe using diagrams the three most common topologies in terms of nod

Internet service provider (isp), Internet  Service Provider (ISP) Thi...

Internet  Service Provider (ISP) This  supper fast  network  spanning  the world  from  one major  metropolitan area to another  is provided  by a handful of national internet

What is telnet, What is Telnet It is a protocol or set of rules that us...

What is Telnet It is a protocol or set of rules that uses to connect one computer to another computer in network. It is also called as a remote login. The telnet operates on cl

What do you understand by service access point, Q. How two adjacent layers ...

Q. How two adjacent layers communicate in a layered network or what do you understand by Service Access Point? Ans: In layered network, each layer has several entities and enti

Illustrate stop-and-wait automatic repeat request, Q. Illustrate Stop-and-W...

Q. Illustrate Stop-and-Wait Automatic Repeat request? - Simplest flow as well as error control mechanism - The sending device keeps a duplicate copy of the last frame transm

Transition phases - point to point , Transition Phases A PPP connectio...

Transition Phases A PPP connection goes through phases  which can be  shown in a transition phase . Dead: In  the dead phase  the link is not  being used. There is  no ac

What are the various security measures, What are the various security meas...

What are the various security measures A matter of prime concern to companies is the overheads in the form of huge investment on extra hardware and software. It is quite possi

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