Application, presentation, session, transport, network, data link, physical
Dive deep into the OSI Model to understand its seven layers, their functions, and how it defines the networking framework to implement protocols in seven layers.
OSI模型的数据链路层(Data Link Layer)(即第2层)负责为数据包添加头和尾,为数据包可以转换为适合于局域网和广域网线路传输的二进制格式做准备。第2层可以分为两个功能子层,上子层是逻辑链路控制(Logical Link Control,LLC)子层,并在IEEE 802.2规范中定义,它与数据链路层之上的网络层(NetworkLayer)通信。LLC...
The four main functions of the layer are file transfer, mail services, directory services, and authentication. What are the other layers in the OSI model? There are seven total OSI layers. The other six layers are thephysical layer, thedata link layer, thenetwork layer,the transport layer,th...
transferring data between devices. HTTP belongs to theapplication layer (layer 7), because it puts data into a format that applications (e.g. a browser) can use directly, without further interpretation. The lower layers of the OSI model are handled by a computer's operating system, not ...
1) What is a Link?A link refers to the connectivity between two devices. It includes the type of cables and protocols used in order for one device to be able to communicate with the other.2) What are the layers of the OSI reference model?There are 7 OSI layers: Physical Layer, Data...
The seven layers are:Physical layer Data link layer Network layer Transport layer Session layer Presentation layer Application layerIn the OSI model, control is passed from the top to the bottom layers, one layer at a time, beginning with the application layer. Each layer handles a specific ...
OSI Layer 2: Data Link The Data Link layer is often divided into two sub layers: media access control (MAC) and thelogical link control(LLC) layer. The MAC sub layer controls how a computer on the network gains access to the data and permission to transmit it. The LLC layer controls ...
What are the layers of TCP/IP? The TCP/IP reference model is divided into five layers, but some consider it to have four layers by combining two of the layers in the five-layer model. The five layers are: Application layer Transport layer ...
The State of DDoS Threats: Q3 2023 Get the report What are the 7 layers of the OSI Model? The seven abstraction layers of the OSI model can be defined as follows, from top to bottom: 7. The application layer This is the only layer that directly interacts with data from the user. Sof...