A group of 2 - 1 routers are interconnected in a centralized binary tr – McqOptions

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1.	A group of 2 - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.
A.	2 (m - 2)
B.	2 (2
C.	- 1)
D.	m - 1
E.	(2m - l)/mJ
Answer» B. 2 (2

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