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1. |
Choose the best matching between Group 1 and Group 2. Group-1 Group-2 P. Data link 1. Ensures reliable transport of data over a physical point-to-point link Q. Network layer 2. Encoder/decodes data for physical transmission R. Transport layer 3. Allows end-to-end communication between two processes 4. Routes data from one network node to the next |
A. | P-1, Q-4, R-3 |
B. | P-2, Q-4, R-1 |
C. | P-2, Q-3, R-1 |
D. | P-1, Q-3, R-2 |
Answer» B. P-2, Q-4, R-1 | |