What Do You Know About SIP-VoIP? Trivia Questions Quiz

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1. Voice quality of a VoIP call is directly affected by which factor(s)?

Explanation

The voice quality of a VoIP call is directly affected by loss, latency, and jitter. Loss refers to the loss of packets during transmission, which can result in choppy or distorted audio. Latency is the delay in the transmission of voice data, causing a noticeable lag between the speaker and the listener. Jitter refers to variations in the delay of packet arrival, leading to inconsistent voice quality. All of these factors can significantly impact the overall voice quality of a VoIP call.

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About This Quiz
What Do You Know About SIP-VoIP? Trivia Questions Quiz - Quiz

What Do You Know About SIP-VoIP? These trivia questions are perfect for a person that gets a hard time differentiating the two and how they work. Thanks to VoIP, it is possible to make calls over the internet, and the sip is used to start, modify, and terminate these kinds... see moreof Connections. Take the quiz and see what new things you might learn,
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2. What is jitter?

Explanation

Jitter refers to the variability in the delay of data packets or signals as they are transmitted over a network. It is a measure of the inconsistency or fluctuations in the timing of the packets. When there is high jitter, the packets arrive at the destination with varying delays, causing issues such as packet loss, data corruption, and poor quality of audio or video streams. Therefore, the correct answer is "Variability of delay."

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3. H.323 is an umbrella standard.  This means that many different standards are incorporated into one overall standard.

Explanation

H.323 is indeed an umbrella standard, meaning that it encompasses multiple different standards within one overall standard. This allows for interoperability and compatibility between various communication devices and systems that adhere to different standards. By incorporating these different standards, H.323 provides a comprehensive framework for audio, video, and data communication over IP networks.

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4. Functionally, SIP and H.323 are similar.  Both protocols can provide call control, call setup, call teardown, call waiting, call hold, call transfer, call forwarding, call return, call identification, call park or capabilities exchange.  

Explanation

SIP and H.323 are both protocols used in Voice over IP (VoIP) communication. They have similar functionalities such as call control, call setup, call teardown, call waiting, call hold, call transfer, call forwarding, call return, call identification, call park, and capabilities exchange. Therefore, the statement that SIP and H.323 are functionally similar is true.

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5. What name is given to a device that performs conversion between the VoIP world and traditional telephony?

Explanation

A device that performs conversion between the VoIP world and traditional telephony is called a gateway. Gateways are used to connect VoIP networks with traditional telephone networks, allowing communication between the two systems. Gateways convert the voice signals from analog to digital or vice versa, enabling seamless communication between VoIP and traditional telephony users.

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6. SIP borrows much of the syntax and semantics from ______ ?

Explanation

SIP (Session Initiation Protocol) borrows much of its syntax and semantics from HTTP (Hypertext Transfer Protocol). This is because both protocols are used for communication purposes. HTTP is primarily used for web browsing and transferring hypertext documents, while SIP is used for initiating, modifying, and terminating real-time sessions involving video, voice, and messaging applications. By borrowing from HTTP, SIP is able to leverage existing standards and protocols, making it easier to integrate and communicate with web-based applications and services.

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7. One-way latency (mouth to ear) should be no more than ________ for VoIP calls.

Explanation

The one-way latency for VoIP calls should be no more than 150 ms. This is because any latency beyond this threshold can result in noticeable delays and disruptions in the conversation. Keeping the latency within this limit ensures a smooth and real-time communication experience for the users involved in the VoIP call.

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8. Establishing communication using SIP usually occurs in three steps.

Explanation

Establishing communication using SIP typically involves four steps: session initiation, session description, session establishment, and session termination. Therefore, the given statement is false as it only mentions three steps.

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9. Which audio codec would we consider for voice compression if delay were an issue?

Explanation

G.728 would be the audio codec to consider for voice compression if delay were an issue. This codec is specifically designed to prioritize low-delay speech compression, making it suitable for real-time applications such as voice communication. It achieves this by utilizing a low-complexity algorithm that reduces the coding delay, ensuring minimal latency in the compressed audio signals.

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10. Name two protocols that can be used for capability negotiation.

Explanation

SIP (Session Initiation Protocol) and H.245 are two protocols that can be used for capability negotiation. SIP is a signaling protocol used for initiating, modifying, and terminating communication sessions, such as voice and video calls, over IP networks. It allows devices to negotiate their capabilities and agree on the protocols and codecs to be used for the communication session. H.245, on the other hand, is a protocol used in videoconferencing systems to negotiate capabilities for media channels, including audio and video codecs, bit rates, and resolutions. Together, SIP and H.245 enable devices to negotiate and establish communication sessions with compatible capabilities.

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Voice quality of a VoIP call is directly affected by which factor(s)?
What is jitter?
H.323 is an umbrella standard.  This means that many different...
Functionally, SIP and H.323 are similar.  Both protocols can...
What name is given to a device that performs conversion between the...
SIP borrows much of the syntax and semantics from ______ ?
One-way latency (mouth to ear) should be no more than ________ for...
Establishing communication using SIP usually occurs in three steps.
Which audio codec would we consider for voice compression if delay...
Name two protocols that can be used for capability negotiation.
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