COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK PROTOCOLS AND STANDARDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are updated
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They break
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They can no longer communicate
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Nothing, layers are independent. That’s thepoint of them
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Detailed explanation-1: -At the data link and physical layer, the OSI model only describes how data is handled from the network layer to the physical layer. It does not state what exactly happens at each of them. The network and transport layers of the OSI model are very similar to those of the TCP/IP model.
Detailed explanation-2: -Remember that you can’t skip any layers in the OSI model. It’s impossible to jump from the Application layer directly to the Network layer. You must always go through all the layers to send data over the network.
Detailed explanation-3: -The message is sent to the transport layer where data is segmented, and then the network layer breaks the segments into packets. Then, the packets are sent from the network layer to the data link layer, where packets are further broken down into frames.