Windows Security · lesson 4 of 9 · 12 min

Windows Firewall basics

summary: A host firewall controls traffic to and from one computer. Identify the required service and use the narrowest approved rule, then verify that legitimate access still works.

question: Which firewall approach follows least privilege?

options:

• Allow only required traffic
• Allow every port
• Disable the firewall
• Block all logging

correct: Allow only required traffic

explanation: Narrow rules reduce exposure while preserving the needed service.

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