MCQOPTIONS
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| 1. |
In a typical mobile phone system with hexagonal cells, it is forbidden to reuse a frequency band in adjacent cells. If 840 frequencies are available, how many can be used in a given cell? |
| A. | 280 |
| B. | 210 |
| C. | 140 |
| D. | 120 |
| Answer» B. 210 | |