TestOut LabSim A+ Certification Practice Exam

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Which protocol is designed to carry phone calls over an IP-based network?

HTTP
VoIP
FTP
SMTP

The correct answer is: VoIP

The protocol specifically designed to carry phone calls over an IP-based network is VoIP, which stands for Voice over Internet Protocol. VoIP allows for the transmission of voice communications and multimedia sessions over the Internet rather than traditional analog telephone lines. This technology converts voice into digital packets and transmits them over IP networks, making it a cost-effective solution for telecommunication. VoIP encompasses several protocols, standards, and methods, enabling services such as voice calls, video conferencing, and messaging. Its flexibility and efficiency have made it increasingly popular in both personal and business communication. The other protocols mentioned do not serve this purpose. HTTP is designed for transferring web pages, FTP is used for transferring files, and SMTP is specifically for email transmission, highlighting that VoIP is uniquely positioned for voice communication within IP networks.