You have been sent to the University of Yale to enable voice calls using a broadband connection instead of a regular analog phone line. Which of the following protocols would you apply in such a scenario? VoIP POP3 IMAP4 SIP

Computer Networking: A Top-Down Approach (7th Edition)
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Chapter1: Computer Networks And The Internet
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**Question:**

You have been sent to the University of Yale to enable voice calls using a broadband connection instead of a regular analog phone line. Which of the following protocols would you apply in such a scenario?

**Options:**
- VoIP
- POP3
- IMAP4
- SIP

**Explanation:**

In this multiple-choice question, you are required to identify the appropriate protocol to enable voice calls over a broadband connection rather than using a traditional analog phone line. Each option is a protocol used for different purposes in networking and communication:

1. **VoIP (Voice over Internet Protocol):** 
   - VoIP is the correct choice in this scenario as it allows voice communication to be carried out over the internet rather than through traditional telephone lines. It converts voice signals into digital data packets which can then be transmitted over a broadband connection.

2. **POP3 (Post Office Protocol version 3):**
   - POP3 is a protocol used for retrieving emails from a mail server. It is not related to voice communication.

3. **IMAP4 (Internet Message Access Protocol version 4):**
   - IMAP4 is another protocol for accessing and managing emails on a mail server. It allows emails to be read and managed directly on the server, providing features like email folder management. This protocol is also unrelated to voice communication.

4. **SIP (Session Initiation Protocol):**
   - While SIP is primarily used for initiating, maintaining, and terminating real-time sessions that involve video, voice, messaging, and other communications, it is often integrated with VoIP systems to manage the setup and teardown of voice calls. Technically, SIP could be a possible answer, but it typically functions alongside VoIP to handle these tasks and is often not the primary protocol used alone for voice communication over the internet.

If you are asked to choose one protocol in this specific context, **VoIP** is the best answer as it directly pertains to enabling voice calls over a broadband connection.
Transcribed Image Text:**Question:** You have been sent to the University of Yale to enable voice calls using a broadband connection instead of a regular analog phone line. Which of the following protocols would you apply in such a scenario? **Options:** - VoIP - POP3 - IMAP4 - SIP **Explanation:** In this multiple-choice question, you are required to identify the appropriate protocol to enable voice calls over a broadband connection rather than using a traditional analog phone line. Each option is a protocol used for different purposes in networking and communication: 1. **VoIP (Voice over Internet Protocol):** - VoIP is the correct choice in this scenario as it allows voice communication to be carried out over the internet rather than through traditional telephone lines. It converts voice signals into digital data packets which can then be transmitted over a broadband connection. 2. **POP3 (Post Office Protocol version 3):** - POP3 is a protocol used for retrieving emails from a mail server. It is not related to voice communication. 3. **IMAP4 (Internet Message Access Protocol version 4):** - IMAP4 is another protocol for accessing and managing emails on a mail server. It allows emails to be read and managed directly on the server, providing features like email folder management. This protocol is also unrelated to voice communication. 4. **SIP (Session Initiation Protocol):** - While SIP is primarily used for initiating, maintaining, and terminating real-time sessions that involve video, voice, messaging, and other communications, it is often integrated with VoIP systems to manage the setup and teardown of voice calls. Technically, SIP could be a possible answer, but it typically functions alongside VoIP to handle these tasks and is often not the primary protocol used alone for voice communication over the internet. If you are asked to choose one protocol in this specific context, **VoIP** is the best answer as it directly pertains to enabling voice calls over a broadband connection.
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