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Q. Explain about Butterfly permutation?
Butterfly permutation: This kind of permutation is attained by interchanging the most significant bit in address with least significant bit.
Figure: Butterfly permutation
E.g. Xn-1, Xn-2, and X1.X0 = X0 Xn-2 ....... X1 Xn-1
001↔100, 010↔010
011↔110,
An interconnection network derived from this permutation is the butterfly network. A butterfly network falls under the type of blocking networks and it doesn't permit an arbitrary connection of N inputs to N outputs without conflict. The butterfly network is customized in Benz network. The Benz network comes under non-blocking network and it is produced by combining two butterfly networks end to end, in a manner that data flows forward by one and in reverse by the other.
Common channel signalling in SS7 is (A) out band control channel. (B) In band control channel. (C) Speech control channel. (D) None of the above. Ans:
My name is mrs flo and i apporve dubstep, do you apporve it?
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