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思科认证考试

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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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