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

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| By C1regtech
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  • 1/10 Questions

    What is jitter?

    • Variability of delay
    • A buffer used to provide even output
    • A type of compression
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About This 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 of Connections. Take the quiz and see what new things you might learn,

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

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  • 2. 

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

    • Loss

    • Latency

    • Jitter

    • All of the above

    Correct Answer
    A. All of the above
    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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  • 3. 

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

    • True

    • False

    Correct Answer
    A. True
    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.  

    • True

    • False

    Correct Answer
    A. True
    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?

    • Gatekeeper

    • Switch

    • Gateway

    • PBX

    Correct Answer
    A. Gateway
    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 ______ ?

    • Cisco

    • UNIX

    • C++

    • HTTP

    Correct Answer
    A. HTTP
    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.

    • 125 ms

    • 150 ms

    • 175 ms

    Correct Answer
    A. 150 ms
    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.

    • True

    • False

    Correct Answer
    A. False
    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?

    • G.723

    • G.728

    • G.729

    Correct Answer
    A. G.728
    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.

    • ITU and IETF

    • SIP and H.323

    • H.245 and H.323

    • SIP and H.245

    Correct Answer
    A. SIP and H.245
    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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  • Current Version
  • Aug 16, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 07, 2009
    Quiz Created by
    C1regtech
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