WAEC - Data Processing (2019 - No. 13)
The main function of the device in the part labeled II in Figure 2 above is
speeding up the rate of data transfer to the part labeled
providing services to the other devices in the setup
forwarding data packets between computers
controlling the access to the part labeled I
Explanation
The main function of the part labelled II in the diagram above is to forward data packets between computers
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