This document discusses communication models and standards. It provides an in-depth overview of the ISO-OSI 7-layer communication reference model, explaining each of the seven layers in detail. It also briefly explains the TCP/IP model and compares it to the ISO-OSI model. The document serves to explain the reference models and standards relevant for network communications.
This is Powerpoint Presentation on IP addressing & Subnet masking. This presentation describes how IP address works, what its classes and how the subnet masking works and more.
TCP/IP have 5 layers, whereas OSI model have 7 layers in its Model. TCP/IP is known for the secured connection and comunication. I have explained all functions and definitions of layers in TCP/IP Model
Difference between OSI Layer & TCP/IP LayerNetwax Lab
Difference between OSI Layer & TCP/IP Layer
TCP/IP OSI
It has 4 layers. It has 7 layers.
TCP/IP Protocols are considered to be standards
around which the internet has developed.
OSI Model however is a "generic, protocolindependent standard."
Follows Vertical Approach Follows Horizontal Approach
In TCP/IP Model, Transport Layer does not
Guarantees delivery of packets.
In OSI Model, Transport Layer Guarantees
delivery of packets.
This is Powerpoint Presentation on IP addressing & Subnet masking. This presentation describes how IP address works, what its classes and how the subnet masking works and more.
TCP/IP have 5 layers, whereas OSI model have 7 layers in its Model. TCP/IP is known for the secured connection and comunication. I have explained all functions and definitions of layers in TCP/IP Model
Difference between OSI Layer & TCP/IP LayerNetwax Lab
Difference between OSI Layer & TCP/IP Layer
TCP/IP OSI
It has 4 layers. It has 7 layers.
TCP/IP Protocols are considered to be standards
around which the internet has developed.
OSI Model however is a "generic, protocolindependent standard."
Follows Vertical Approach Follows Horizontal Approach
In TCP/IP Model, Transport Layer does not
Guarantees delivery of packets.
In OSI Model, Transport Layer Guarantees
delivery of packets.
Slide deck from our Basics of Computer Networking webinar lead by instructor Daniel Cummins. Networks are as different as the people and organizations that use them. Despite those differences, there are some foundational components that all networks share. Explore different types of networks and the common components that must exist in these networks. Learn more about TCP/IP, the protocol suite that connects the whole world together and look at the ways in which we connect to the world via the Internet. Topics covered include network components, network types, and network protocols. For more information on networking training, visit https://ter.li/37zcnu
Although the OSI reference model is universally recognized, the historical and technical open standard of the Internet is Transmission Control Protocol / Internet Protocol (TCP/IP).
The TCP/IP reference model and the TCP/IP protocol stack make data communication possible between any two computers, anywhere in the world, at nearly the speed of light.
Many Networking Software are structured into layers in the same way, TCP/IP is modelled in layers. This layered representation represents the term protocol stack, which refers to the stacked set of rules in the protocol suite. Copy the link given below and paste it in new browser window to get more information on TCP IP Model:- www.transtutors.com/homework-help/computer-science/tcp-ip-model.aspx
In this tutorial on 'What Is Ethernet?'. we will look into the way for how network devices access internet using the ethernet cables, why it is beneficial to use ethernet, along with types and advantages and disadvantages of using ethernet in the network.
The topics covered in this tutorial on 'What Is Ethernet?' are:
1. What Is Ethernet?
2. Why use Ethernet?
3. Types of Ethernet
4. Working of Ethernet
5. Advantages & Disadvantages of Ethernet
6. Ethernet vs Internet
Slide deck from our Basics of Computer Networking webinar lead by instructor Daniel Cummins. Networks are as different as the people and organizations that use them. Despite those differences, there are some foundational components that all networks share. Explore different types of networks and the common components that must exist in these networks. Learn more about TCP/IP, the protocol suite that connects the whole world together and look at the ways in which we connect to the world via the Internet. Topics covered include network components, network types, and network protocols. For more information on networking training, visit https://ter.li/37zcnu
Although the OSI reference model is universally recognized, the historical and technical open standard of the Internet is Transmission Control Protocol / Internet Protocol (TCP/IP).
The TCP/IP reference model and the TCP/IP protocol stack make data communication possible between any two computers, anywhere in the world, at nearly the speed of light.
Many Networking Software are structured into layers in the same way, TCP/IP is modelled in layers. This layered representation represents the term protocol stack, which refers to the stacked set of rules in the protocol suite. Copy the link given below and paste it in new browser window to get more information on TCP IP Model:- www.transtutors.com/homework-help/computer-science/tcp-ip-model.aspx
In this tutorial on 'What Is Ethernet?'. we will look into the way for how network devices access internet using the ethernet cables, why it is beneficial to use ethernet, along with types and advantages and disadvantages of using ethernet in the network.
The topics covered in this tutorial on 'What Is Ethernet?' are:
1. What Is Ethernet?
2. Why use Ethernet?
3. Types of Ethernet
4. Working of Ethernet
5. Advantages & Disadvantages of Ethernet
6. Ethernet vs Internet
osi vs tcp/ip
you can get the contents from the slides of forouzan and tanenbaum of computer networking.
application layer
session layer
data link layer
presentation layer
network layer
physical layer
transmission in each osi layer
transmission in each tcp/ip layer
A framework that helps to understand complex network interactions. It is the part of the Internet communications process where these connections occur, by sending packets of data back and forth between different networks. There are two models that are widely referenced today: OSI and TCP/IP. The concepts are similar, but the layers themselves differ between the two models.
Power point presentation on osi model.
A good presentation cover all topics.
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Open Systems Interconnection (OSI) is a set of internationally recognized, non-proprietary standards for networking and for operating system involved in networking functions.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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1. ASSIGNMENT OBJECTIVES
Discuss the most popular ISO-OSI 7-layer
communication reference model
Explain the reference model and standards
relevant to network communications
Explain TCP/IP Model
2. MODELS AND STANDARDS IN
COMMUNICATION
Communication
Established standards
Standards are known as protocols
Implementation
A framework is helpful in the design of hardware and
software for communication
ISO-OSI Model serves this purpose
ISO-OSI supersedes the TCP/IP model
4. OSI MODEL BACKGROUND
Introduced in 1978 and revised in 1984
Formulates the communication process into
structured layers
There are seven layers in the model, hence the
name the 7-Layer model
The model acts as a frame of reference in the
design of communications and networking
products
5. DIVISION OF LAYERS
Upper Layers
Lower Layers
Middle Layer
7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link
1. Physical
6. 7. APPLICATION LAYER
Purpose
User application to network service interface
Examples
File request from server
E-mail services
8. 6. PRESENTATION LAYER
Purpose
Formats data for exchange between points of
communication
Example:
Redirector software
Formats for transmission to the server
10. 5. SESSION LAYER
Purpose
Oversee a communication session
Establish
Maintain
Terminate
Function
Performs name recognition and related security
Synchronization between sender and receiver
Assignment of time for transmission
Start time
End time etc.
11. 4. TRANSPORT LAYER
Purpose
Repackage proper and efficient delivery of packages
Error free
In sequence
Without duplication
12. TRANSPORT LAYER FUNCTION
For sending data
Repackage the message to fit into packets
Split long messages
Assemble small messages
On receiving data
Perform the reverse
Send an acknowledgment to the sender
Solve packet problems
During transmission and reception
13. 3. NETWORK LAYER
Purpose
Addressing and routing the packets
Example application at the router
If the packet size is large, splits into small packets
14. NETWORK LAYER FUNCTION
Address messages
Address translation from logical to physical
Ex: nganesa ----------> 102.13.345.25
Routing of data
Based on priority
Best path at the time of transmission
15. 2. DATA LINK LAYER
Purpose
Manages the flow of data over the physical media
Responsible for error-free transmission over the
physical media
Assures error-free data submission to the
Network Layer
16. DATA LINK LAYER FUNCTION
Point of origin
Packages data for transmission over physical line
Receiving end
Packages data for submission to the network layer
17. DATA LINK LAYER SUBDIVISION
Improvement to ISO Model
Logical Link Control (LLC) sub-layer
Manages service access points (logical link)
Error and flow control
Media Access Control (MAC) sub-layer
Applies directly to network card communication
Access control
18. 1. PHYSICAL LAYER
Purpose
Deals with the transmission of 0s and 1s over the
physical media
Translation of bits into signals
Example
Pulse duration determination
Transmission synchronization
etc.
19. PHYSICAL LAYER FUNCTION
Encode bits into signals
Carry data from the higher layers
Define the interface to the card
Electrical
Mechanical
Functional
Example: Pin count on the connector
20. TCP/IP REFERENCE MODEL
There are four layers of the TCP/IP
reference model (DARPA model as named
by the US Government Agency)
The ISO-OSI reference model is composed of
seven layers
The next slide shows the mapping of the
ISO/OSI model to the TCP/IP model
Note that the ISO/OSI model is more
widely used and accepted but the TCP/IP
model is easy to comprehend
21. COMPARISON OF ISO-OSI MODEL
AND THE TCP/IP MODEL
Application
Application
Presentation
Session
Transport Host-to-Host
Network Internet
Data Link
Network Access
Physical
23. NETWORK INTERFACE LAYER
Responsible for sending and receiving TCP/IP
packets on the network medium (physical/Data
Link)
Applicable LAN technologies
Ethernet, Token Ring, FDDI etc.
Applicable WAN technologies
X.25 (old), Frame Relay, ATM etc.
Note that some technologies such as ATM and
FDDI may be used at both the WAN and the
LAN levels
25. CORE INTERNET LAYER
PROTOCOLS
IP
A connectionless unreliable protocol that is
part of the TCP/IP protocol suite
ARP (Address Resolution Protocol)
Resolves IP addresses to MAC addresses
ICMP (Internet Control Message
Protocol)
Diagnostics and error reporting
(IGMP) Internet Group Management
Protocol
Management of group multicast
26. TRANSPORT LAYER
Sequencing and transmission of packets
Acknowledgment of receipts
Recovery of packets
Flow control
In essence, it engages in host-to-host
transportation of data packets and the delivery of
them to the application layer
27. CORE PROTOCOLS OF THE
TRANSPORT LAYER
TCP
(Transmission
Control Protocol)
UDP (User
Datagram Protocol)
Transport Layer
28. APPLICATION LAYER
Provides applications with the ability to access
the services of the other layers
New protocols and services are always being
developed in this category