On an ISDN BRI interface, the control channel is the 'D'
channel.
What is
the rate of this channel?
A.) 64 Kbps
B.) 1.544 Mbps
C.) 128 Kbps
D.) 2.048 Mbps
E.) 16 Kbps
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Answer / rajbir singh mor
Interface for providing two data channel (B channels,
64,000 bps each ) and one control channel (D channel,
16,000 bps). Link between Basic Rate Interface and terminal
equipment is S0 bus. (also called as S/T interface).
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CCNA 
