Which technology is used to speak to others online, enabling voice communication over the Internet?

Which technology is used to speak to others online, enabling voice communication over the Internet?

• A. VPN
• B. Email
• C. SMS
• D. VoIP (Voice over Internet Protocol)

Answer: (D)

Voice communication over the Internet is enabled by VoIP, which stands for Voice over Internet Protocol. It works by converting your voice into digital data, breaking it into packets, and sending those packets over IP networks in real time. At the other end, the packets are reassembled into sound for the listener. This lets you place calls using broadband, Wi‑Fi, or mobile data without traditional phone lines. The other options don’t fit because a VPN secures connections to private networks, email sends text messages and attachments rather than live voice, and SMS is used for short text messages over cellular networks rather than real-time voice over the Internet.

Voice communication over the Internet is enabled by VoIP, which stands for Voice over Internet Protocol. It works by converting your voice into digital data, breaking it into packets, and sending those packets over IP networks in real time. At the other end, the packets are reassembled into sound for the listener. This lets you place calls using broadband, Wi‑Fi, or mobile data without traditional phone lines. The other options don’t fit because a VPN secures connections to private networks, email sends text messages and attachments rather than live voice, and SMS is used for short text messages over cellular networks rather than real-time voice over the Internet.