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Which layer of the OSI model is the only one that does not provide services to other layers within the model?
Wiki User
∙ 15y ago
Original Answer which is incorrect: Application Layer The answer is none. FTP(Layer/7: File Transfer Protocol) which is a daemon or service that lies on computers on micro, to mid, to mainframe computers all use this service. The service was designed during the original design of the 'internet' by DARPA(Defense Advanced Research Projects Agency) to transfer data between 'unlike' computer operating systems for redundancy reasons. Likewise, Microsoft Access or Microsoft Excel, which are also application levels of the OSI model or layer 7, can communicate to all levels of the OSI model. Microsoft Access can for instance talk though ODBC, then through an appropriate protocol like TCP/IP to a database anywhere in the world on a publicly addressed space. Therefore, Application layer programs, can in fact communicate through the lower six layers. I can see the argument that layer 7 does not provide services to lower layers, unless you have seen this on a protocol analyzer. When an FTP or Web(HTTP)request comes in, it travels up the OSI model from physical to application. It is dealt with on the local CPU, then sent down the OSI model from layer 7 to 1, then out the default router. You also have push functions on the internet that exist in code on many types of devices that originate on layer 7(like your uploading your camera photos through your email program), including web servers. So to argue that web servers only respond to client requests is not proper either. I hope this has cleared up this issue. The OSI model is meant to encompass all measures of communications. All are related. No exceptions except for dead packets. e
Wiki User
∙ 15y ago
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It is difficult to generalize about protocols because they vary so greatly in purpose but what properties do application protocols display?
The Application layer uses protocols that are implemented within applications and services. While applications provide people with a way to create messages and Application layer services establish an interface to the network, protocols provide the rules and formats that govern how data is treated.
Which layer of the OSI model supplies services that allow user to interface with the network?
The Seven layers of the OSI model are: Application Presentation Session Transport Network Data-Link Physical I think the answer to your question is the Application layer.
Which layer of the OSI model are layers capabale of functioning?
The OSI Model stands for Open Systems Interconnection. The answer to the question which layer of the OSI model are layers capable of functioning is at all layers.
Are network functions only associated with one layer of the OSI model?
No, At each layer, protocols perform servers unique to that layer. While performing those services, the protocols also interact with protocols in the layers directly above and below. In addition, at the top of the OSI model, Application layer protocols interact with the software you use. At the bottom, Phsyical layer services act on the networking cables and connectors to issue and receive signals.
What component of the layers panel can show a miniature image of a layers contents?
Layer thumbnail
The IEEE subdivided the datalink layer to provide for environments that need connectionless or connection-oriented services What are the two layers called?
Mac & llc
How meny layers of skin?
2. The epidermis and the Dermis. The epidermis (outer layer of skin) has layer within it (5).
Why does graphite conduct electricity in one plane?
THe electrons cannot move from layer to layer, althought they are free to move within layers
What is the plural of layer?
The plural of layer is layers.
In which two layers of the osi model do NIC's belong?
NIC's can perform in the Data Link Layer of the OSI model. However, they can also perform services in the Physical Layer.(Network+ Guide to Networking Answer)Physical and Data Link layers
What is an arrangement of sediments in visible layers within a rock?
There are thousands of different arrangements in nature of visible layers. These layer arrangements can be considered to be patterns.
What is the protocol originally designed for IBM to provide Transport and Session layer services?
You may be thinking of Systems Network Architecture -- SNA. Classically, this scheme was part of 'telecommunications'. In this design, the transport session's technology layer was independent from the other technology layers -- systems and applications, so that the transport technology could evolve without influencing the other layers. Similarly, all the layers could evolve independently of each other.
It is difficult to generalize about protocols because they vary so greatly in purpose but what properties do application protocols display?
The Application layer uses protocols that are implemented within applications and services. While applications provide people with a way to create messages and Application layer services establish an interface to the network, protocols provide the rules and formats that govern how data is treated.
How does a TCP work?
TCP/IP is composed of layers, wherein each layer is responsible for performing certain operations on the data it receives and passing it to the higher layers. Each layer deals with certain issues related to the transmission of data and renders certain services to its higher layers.
Is the ozone layer a layer of the atmosphere?
No, it is a "sub-layer" mostly located within the stratosphere (app. 10-50 km above the Earth's surface), but exists in small quantities within all layers of the atmosphere. The Stratophere is the second-lowest layer of Earth's atmosphere and the ozone layer is located there.
Where are all the layers of the ozone layer?
There are no layers in the ozone layer. It is a single layer of pool of ozone gas.
What divides the layers of the earth's atmosphere?
From the Earth outward the layers of the atmosphere are; Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere. These layers are divided by whether the temperature increases or deceases with an increase in altitude within the layer.
