Which layer of the OSI reference model provides internetwork connectivity?

The network layer, which routes data from one system to another, provides addressing for use on the internetwork.

What is the internetwork layer?

In the Internet reference model, the layer above the network access layer is called the internetwork layer. This layer is responsible for routing messages through internetworks. Two types of devices are responsible for routing messages between networks.

How does data travel in the OSI model?

Data travels from the sending computer down through all the layers to the physical layer where the data is put onto the network cabling, and then sent to the physical layer of the receiving computer where the process reverses and the data travels up through the layers to the application layer of the receiving computer.

What are the activities of the OSI model?

Activities: Activities: Part 1 – Data Encapsulation and Layers 2 and 3 1. Fill in the Protocol Data Units for each of the seven layers of the OSI model in the table below: Layer Number Layer Name PDU Layer 7 Application the data received or transmitted by a software application Layer 6 Presentation the data formatted for presentation Layer 5.

How does the network layer of OSI work?

The network layer is responsible for: 1 Routing packets from source to destination (host-to-host delivery) across different networks, 2 Translating logical addresses into physical addresses, and 3 Fragmenting packets into smaller pieces to allow it to travel across links with lower maximum transmission units (MTU). More

How is data encapsulated in the OSI model?

Basically, the raw data in the form of bits i.e. 0’s & 1’s are converted into signals and exchanged over this layer. Data encapsulation is also done at this layer. The sender end and the receiving end should be in synchronization and the transmission rate in the form of bits per second is also decided at this layer.

Which is the fourth layer of the OSI Reference Model?

The fourth layer from the bottom is called the transport layer of the OSI Reference model. (i) This layer guarantees an end to end error-free connection between the two different hosts or devices of networks.