Crucial Exams

AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question

An engineer tightened the inbound network ACL of a private subnet (10.0.2.0/24) to: 100 ALLOW TCP 8080 10.0.1.0/24 110 DENY ALL 0.0.0.0/0 Outbound rules ALLOW ALL. Web-tier instances in 10.0.0.0/24 can no longer reach application-tier instances in 10.0.2.0/24 on TCP 8080, even though security groups permit the traffic. Which least-privilege change will restore connectivity?

  • Replace the custom network ACL with the default ACL that ALLOWS all inbound and outbound traffic.

  • Add a route to the private subnet's route table that sends 10.0.0.0/24 traffic to the internet gateway.

  • Add a security group rule on the application servers that ALLOWS TCP 8080 from 0.0.0.0/0.

  • Insert a new inbound network ACL rule 90 that ALLOWS TCP 8080 from 10.0.0.0/24.

AWS Certified CloudOps Engineer Associate SOA-C03
Networking and Content Delivery
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