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SCS-C02 · Question #345
An application running on EC2 instances in a VPC must call an external web service via TLS (port 443). The instances run in public subnets. Which configurations below allow the application to function
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Submitted by devops_kid· Mar 6, 2026Infrastructure Security
Question
An application running on EC2 instances in a VPC must call an external web service via TLS (port 443). The instances run in public subnets. Which configurations below allow the application to function and minimize the exposure of the instances? Select 2 answers from the options given below
Options
- AA network ACL with a rule that allows outgoing traffic on port 443.
- BA network ACL with rules that allow outgoing traffic on port 443 and incoming traffic on ephemeral
- CA network ACL with rules that allow outgoing traffic on port 443 and incoming traffic on port 443.
- DA security group with a rule that allows outgoing traffic on port 443
- EA security group with rules that allow outgoing traffic on port 443 and incoming traffic on
- FA security group with rules that allow outgoing traffic on port 443 and incoming traffic on port 443.
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Topics
#NACL#security groups#ephemeral ports#TLS port 443