The connector on a USB flash drive transmits data and power.

• A. Only data
• B. Only power
• C. Neither data nor power
• D. Both data and power

Answer: (D)

USB connectors deliver both data signals and electrical power through the same interface. A flash drive needs power to operate its controller and memory, and it also needs a data path to send and receive information with the computer. The USB port provides a 5-volt power line to run the device, while the data lines carry the digital information back and forth. That’s why this connector is capable of doing both tasks at once. If it only carried data, the drive wouldn’t be powered; if it only carried power, there would be no way to transfer files. So, the best description is that it transmits both data and power.