In the implementation of VLSM te_睦霖题库

单项选择题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

正确答案：C
答案解析：
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