When an application message is sent, the transmitting machine encapsulates it in a layer 4 message, which is then encapsulated in turn in a layer 3 packet. Which proposition is correct?

Question

Accepted Answer

In this encapsulation process, each layer (3 and 4) adds information necessary for the sending of the data to the destination application

Answer

In this encapsulation process, each layer (3 and 4) adds addresses of different types

Answer

In this encapsulation process, layer 4 adds information that is used by the routers routing the data to the destination

Answer

In this encapsulation process, layer 3 checks the message given by layer 4 before encapsulating it

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When an application message is sent, the transmitting machine encapsulates it in...

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