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CompTIA Security+ study material · question 357 of 611

Why does the order of entries in a firewall access list matter?

  1. Because deny entries are always evaluated first
  2. Because the list is re-sorted at each reload
  3. Because an implicit deny at the end drops anything not matched by an earlier permit
  4. Because entries are evaluated in parallel
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Answer: C. Because an implicit deny at the end drops anything not matched by an earlier permit

With an implicit deny at the end, a permit placed after a broader deny will never be reached.

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