Telecommunications Quiz

What year marked the first telephone call that revolutionized voice communications?

• 1876

• 1900

• 1925

• 1850

What does VoIP stand for?

• Voice over Internet Protocol

• Video over Internet Protocol

• Variable over Internet Protocol

• Vector over Internet Protocol

Which network is cited as an example of IP networks that VoIP uses?

• Public Switched Telephone Network (PSTN)

• The Internet and base computer networks

• Local Area Network (LAN)

• Wide Area Network (WAN)

What is the primary function of an IP network in the context of VoIP?

• To deliver voice data from one computer to another via packets

• To provide secure email services

• To host websites and online platforms

• To manage digital marketing

As of the 1990s, what became a mainstream alternative to the PSTN?

• Wireless communication

• VoIP

• Telegraph

• Radio broadcasting

What is the primary purpose of signaling protocols in VoIP communications?

• To exchange voice packets directly between IP phones

• To prepare communication devices for sending user data

• To carry the actual voice traffic during a call

• To terminate a VoIP call

Which layer of the OSI model does a VoIP transport protocol typically operate at?

• Presentation Layer

• Application Layer

• Network Layer

• Physical Layer

What happens if the IP network components lose power, according to the text?

• VoIP services will continue to operate without interruption

• VoIP services will not work until power is restored

• VoIP calls will be rerouted through alternative networks

• VoIP services switch to using traditional PSTN lines

What is NOT a function of transport protocols in a VoIP setup?

• Formatting and identifying the codec used for sampling

• Carrying the actual voice traffic

• Establishing the call by exchanging signaling information

• Terminating a VoIP call

What does a non-proprietary VoIP protocol imply?

• It is owned by a private company and can be used with a fee.

• It is developed by a standards organization and can be used freely by anyone.

• It is exclusively used by manufacturers of VoIP components.

• It requires special permissions to be implemented.