Which of the following describe the channels and data transfer rates used for ISDN BRI? (Select Which of the following describe the channels and data transfer rates used for ISDN BRI? (Select two.)
One D channel operating at 64 Kbps
One D channel operating at 16 Kbps
Two B channels operating at 64 Kbps each
23 B channels operating at 64 Kbps each

Respuesta :

'One D channel operating at 16 Kbps' and 'two B channels operating at 64 Kbps each' describe the channels and data transfer rates used for ISDN BRI. Therefore, options B and C hold correct answers.

The full form of ISDN BRI is 'Integrated Services Digital Network Basic Rate Interface'. ISDN BRI is a configuration setting that delivers one D channel (Data Channel) at 16 Kbps and two B channels (Bearer Channels) at 64 Kbps each over an ordinary telephone line. The D channel is used for any combination of control/signaling, data, and X.25 packet networking. Whereas, the B channel is used for voice or user data.

SDN BRI is mostly used by smaller enterprises for voice-grade telephone services.

You can leran more about ISDN BRI at

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