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Question 162 - SCS-C01 discussion

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A Software Engineer is trying to figure out why network connectivity to an Amazon EC2 instance does not appear to be working correctly. Its security group allows inbound HTTP traffic from 0.0.0.0/0, and the outbound rules have not been modified from the default. A custom network ACL associated with its subnet allows inbound HTTP traffic from 0.0.0.0/0 and has no outbound rules. What would resolve the connectivity issue?

A.
The outbound rules on the security group do not allow the response to be sent to the client on the ephemeral port range.
Answers
A.
The outbound rules on the security group do not allow the response to be sent to the client on the ephemeral port range.
B.
The outbound rules on the security group do not allow the response to be sent to the client on the HTTP port.
Answers
B.
The outbound rules on the security group do not allow the response to be sent to the client on the HTTP port.
C.
An outbound rule must be added to the network ACL to allow the response to be sent to the client on the ephemeral port range.
Answers
C.
An outbound rule must be added to the network ACL to allow the response to be sent to the client on the ephemeral port range.
D.
An outbound rule must be added to the network ACL to allow the response to be sent to the client on the HTTP port.
Answers
D.
An outbound rule must be added to the network ACL to allow the response to be sent to the client on the HTTP port.
Suggested answer: C

Explanation:

https://docs.aws.amazon.com/vpc/latest/userguide/vpc-network-acls.html

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asked 16/09/2024
Ronald Stover
41 questions
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