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Question

The ISDN Basic Rate Interface (BRI) provides two 64 Kbps B channels and one 16 Kbps D channel. The B channels are used for:

The correct answer is
Voice and Data Traffic

ISDN BRI B Channel Usage Explained

The ISDN (Integrated Services Digital Network) Basic Rate Interface (BRI) is a standard way to establish connections for voice and data transmission over digital telephone lines.

ISDN BRI Channel Structure

An ISDN BRI circuit consists of:

  • Two 64 Kbps B (Bearer) channels: These are the primary channels for carrying user information.
  • One 16 Kbps D (Data) channel: This channel is used for signaling, control, and sometimes packet data.

B Channel Functionality

The B channels are dedicated to transmitting the actual communication content. This content can be either:

  • Voice Traffic: Carrying phone calls.
  • Data Traffic: Transmitting computer data, files, or other digital information.

The D channel handles call setup, teardown, and other control messages, allowing the B channels to focus solely on the traffic payload.

Conclusion

Therefore, the two 64 Kbps B channels in ISDN BRI are specifically designed and utilized for carrying voice and data traffic.

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Important Questions from Computer Networks

  1. Which of the following technique(s) used in networking?

  2. Which of the following is/are the applications of Asynchronous Transfer Mode (ATM)?

  3. Which among the following wireless standard is used in 4G network technology?

  4. Arrange the following different types of computer networks in an ascending order on the basis of geographical area implied.

    (A) MAN

    (B) WAN

    (C) LAN

    Choose the correct answer from the options given below :  

  5. ______ represents raw facts, whereas ______ is processed meaningful data.

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