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N10-009 · Question #210
N10-009 Question #210: Real Exam Question with Answer & Explanation
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Submitted by omar99· Mar 6, 2026Network implementation
Question
A security administrator is creating a new firewall object for a device with IP address 192.168.100.1/25. However, the firewall software only uses dotted decimal notation in configuration fields. Which of the following is the correct subnet mask to use?
Options
- A255.255.254.0
- B255.255.255.1
- C255.255.255.128
- D255.255.255.192
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