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Exam SY0-401 topic 1 question 49 discussion

Actual exam question from CompTIA's SY0-401
Question #: 49
Topic #: 1
[All SY0-401 Questions]

Users are unable to connect to the web server at IP 192.168.0.20. Which of the following can be inferred of a firewall that is configured ONLY with the following
ACL?
PERMIT TCP ANY HOST 192.168.0.10 EQ 80
PERMIT TCP ANY HOST 192.168.0.10 EQ 443

  • A. It implements stateful packet filtering.
  • B. It implements bottom-up processing.
  • C. It failed closed.
  • D. It implements an implicit deny.
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Suggested Answer: D 🗳️
Implicit deny is the default security stance that says if you arent specifically granted access or privileges for a resource, youre denied access by default. Implicit deny is the default response when an explicit allow or deny isnt present.
by slackbot at July 21, 2024, 4:05 p.m.

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slackbot
1 year, 1 month ago
Selected Answer: C
first, the IP in the rules does not match the question IP second - implicit deny will not cause problems if explicit allow is present - your own answer contradicts with itself - see last sentence the only reasonable answer is C
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