Define Function of OSI Layers, Basic Computer Science

Assignment Help:
OSI Layers: Open Systems Interconnection model is a reference model developed by International Organization for Standardization in 1984, as a conceptual structure of principles for communication in the network across different applications by different vendors
Layer 7:Application Layer
Application layer interface to user processes for communication and data transfer in network. Provides consistent services such as virtual terminal, file and job transfer and operations
Layer 6:Presentation Layer
Masks the differences of data formats between different systems Specifies architecture-independent data transfer format Encodes and decodes data; Encrypts and decrypts data; Compresses and decompresses data
Layer 5:Session Layer
Important function of session layer are :
Dialog controller - Session layer is the dialog controller. it establishes, maintain and synchronizes between communicating system, token management- its also provide token management services
Layer 4:Transport Layer
Manages end-to-end message delivery in network Provides reliable and sequential packet delivery through error recovery and flow control mechanisms Provides connectionless oriented packet delivery
Layer 3:Network Layer
Determines how data are transferred between network devices Routes packets according to unique network device addresses Provides flow and congestion control to prevent network resource depletion
Layer 2:Data Link Layer
data link layer transforms the physical layer, row transmission facilities to a reliable link and its is responsible for node to node deliver also operating the communication links Frames packets Detects and corrects packets transmit errors
Layer 1:Physical Layer
Defines physical means of sending data over network devices. physical layer perform the functions required to transmit a bit stream over a physical medium

Related Discussions:- Define Function of OSI Layers

Artificial intelligence research, Artificial Intelligence research: Art...

Artificial Intelligence research: Artificial Intelligence research may be describe  in terms of how the following question has been answered: "How are we going to get a comp

Socket, socket programming

socket programming

Visual basics, Assume that s is a string variable  that is supposed to con...

Assume that s is a string variable  that is supposed to contain a value to be converted to integer. Write a fragment of code that converts the value to integer variable  and displ

Sequential writing in fcb files, Previous to we can perform writing to the...

Previous to we can perform writing to the disk it is essential to define the data transfer region using for this end the 1AH function of the 21H interruption. The 1AH function does

Interpreter, Interpreter: An interpreter is a program that translates...

Interpreter: An interpreter is a program that translates each statement in the programming language into machine code and runs it.  Such an arrangement means that to run the

flow chart for online placement, Create systems flow chart and state trani...

Create systems flow chart and state tranistion diagram for online placement and consultancy

Gov problem, "The government is auctioning off oil leases at two sites: 1 a...

"The government is auctioning off oil leases at two sites: 1 and 2. At each site, 100,000 acres of land are to be auctioned. Cliff Ewing, Blake Barnes, and Alexis Pickens are biddi

As, access,excel and ms word/

access,excel and ms word/

Data base software, Data Base Software: Another major type of applicat...

Data Base Software: Another major type of application comes under the heading database software; which allows for the collection of, searching for and manipulation of informat

Server, Server In a network, the resources of computers comprising net...

Server In a network, the resources of computers comprising network are usually shareable. In fact, one of the main objectives of networking is to make the computing resources

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