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Exam ANS-C00 topic 1 question 146 discussion

Exam question from Amazon's ANS-C00
Question #: 146
Topic #: 1
[All ANS-C00 Questions]

You have a website hosted on EC2 that is not serving web pages. You have ensured that the server is running and the site is configured properly. What could be the problem?

  • A. Your NACL does not allow port 80 outbound.
  • B. Your NACL does not allow ports 1024 גˆ’ 65535 outbound.
  • C. Your NACL does not allow ports 1024 גˆ’ 65535 inbound. D. Your security group does not allow outbound traffic.
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Suggested Answer: B 🗳️
The ephemeral ports 1024 גˆ’ 65535 are required outbound for return traffic. For the server to access websites, those same ports need to be allowed inbound.
by Scunningham99 at Nov. 25, 2020, 9:31 a.m.
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Scunningham99
Highly Voted 3 years, 7 months ago
B B B B
upvoted 9 times
StelSen
3 years, 7 months ago
I feel both A & B are possible.
upvoted 1 times
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sapien45
Most Recent 3 years, 3 months ago
I will keep that in mind for my next project
upvoted 2 times
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fgg89
3 years, 7 months ago
A is about port 80 outbound, for outbound traffic we only care about the responses which are in the port range 1024 - 65535, hence B is correct.
upvoted 2 times
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