Final Answer:
4) VoIP (Voice over Internet Protocol). "VoIP" is used to transmit voice and video communication over the internet . So, the correct option is "4" "VoIP".
Step-by-step explanation:
VoIP, or Voice over Internet Protocol, is the technology used to transmit voice and video communication over the internet. Unlike traditional phone systems that rely on circuit-switched networks, VoIP converts voice and video into digital data packets and transmits them over internet protocols.
Ethernet is a wired networking technology commonly used for local area network (LAN) connections. While it facilitates data transfer, it doesn't inherently handle voice and video communication like VoIP.
Bluetooth is a wireless technology commonly used for short-range communication between devices. While it can transmit certain types of data, it is not typically used for broader voice and video communication over the internet.
Wi-Fi is a wireless networking technology that allows devices to connect to the internet without physical cables. While it facilitates internet access, it doesn't inherently handle voice and video communication; VoIP can utilize Wi-Fi for wireless connections.
VoIP is specifically designed for transmitting voice and video communication over the internet. It enables users to make calls, conduct video conferences, and send multimedia messages using internet protocols.
"VoIP" is used to transmit voice and video communication over the internet . So, the correct option is "4" "VoIP".