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Chapter 3 - 11th - Data Communications Multiple Questions and Answers.
| 66. | The data signals transmitted over telephone lines are in the form of choose which one is correct? | ||
| A. | Digital | ||
| B. | Analog | ||
| C. | Digital pulses | ||
| D. | None | ||
| 67. | �bps� stands for choose which one is correct? | ||
| A. | Bytes per second | ||
| B. | Baud per second | ||
| C. | Bits per second | ||
| D. | None | ||
| 68. | External modem is connected to the choose which one is correct? | ||
| A. | Serial port | ||
| B. | Parallel port | ||
| C. | Both a and b | ||
| D. | None | ||
| 69. | Which type of modem can be added to the system unit through expansion slot? | ||
| A. | External modem | ||
| B. | Wireless modem | ||
| C. | Internal modem | ||
| D. | Radio frequency modem | ||
| 70. | Which type of modem does not require any cable as transmission channel to transmit signals? | ||
| A. | External modem | ||
| B. | Wireless modem | ||
| C. | Internal modem | ||
| D. | All of above | ||
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