Which of the following technologies allows real-time communication over the Internet, such as voice and video calls, without requiring additional software or hardware beyond a web browser?
a. FTP
b. VoIP
c. WebRTC
d. Bluetooth
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✅ Correct Answer:
c. WebRTC
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Explanation:
FTP (File Transfer Protocol): Used for transferring files, not real-time communication.
VoIP (Voice over IP): General term for internet calling, but usually needs separate apps or software (like Skype, WhatsApp).
✅ WebRTC: Enables real-time voice/video communication directly in browsers, with no extra software.
Bluetooth: Short-range wireless technology, not internet-based.
