Network Defense Essentials (NDE) Practice Exam

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Study for the Network Defense Essentials Exam. Prepare with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for your exam and enhance your cybersecurity skills!

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What mobile connection method enables wired communication for devices and can provide power supply?

Ethernet
USB
Bluetooth
HDMI

The correct answer is: USB

The correct choice, USB, is integral for establishing both data transfer and power supply between devices. USB connections are widely utilized due to their versatility in connecting peripherals such as keyboards, mice, printers, and storage devices to computers and other host devices. One of the significant advantages of USB is its ability to provide power to devices, making it an efficient solution particularly for mobile devices that require charging while transferring data. This dual functionality distinguishes USB from other connection methods. Ethernet primarily serves for network connectivity, enabling communication over a wired network but does not provide power to devices. Bluetooth is designed for short-range wireless communication without any physical connection or power provision. HDMI, while effective for high-definition video and audio transmission, does not cater to the needs of data transfer or power supply in the same way USB does. Thus, USB's unique combination of functionality makes it the ideal answer for this question.