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N10-009 · Question #279

N10-009 Question #279: Real Exam Question with Answer & Explanation

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Submitted by naveen.iyer· Mar 6, 2026Network Implementation

Question

A network engineer implements a 192.168.100.0/25 subnet for a building without obtaining sizing requirements. It is later determined that the building will house 700 people. Which of the following subnet masks will most efficiently support that number of people?

Options

  • A255.255.252.0
  • B255.255.254.0
  • C255.255.255.0
  • D255.255.255.128

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