which subnet mask is the most efficient for point-to-point serial links?

In the implementation of VLSM techniques on a network using a single Class C IP address,which subnet mask is the most efficient for point-to-point serial links?

In the implementation of VLSM techniques on a network using a single Class C IP address,which subnet mask is the most efficient for point-to-point serial links?

A.
255.255.255.240

B.
255.255.255.254

C.
255.255.255.252

D.
255.255.255.0

E.
255.255.255.248

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m

m

c ya wlad el mara ( ‘C’ but why ya wlad el mara ? )

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