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| Q. |
Which one of the following is not a function of network layer? |
| A. | routing |
| B. | inter-networking |
| C. | congestion control |
| D. | error control |
| Answer» D. error control | |
| Explanation: in the osi model, network layer is the third layer and it provides data routing paths for network communications. error control is a function of the data link layer and the transport layer. | |
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