Amazon
SOA-C02 · Question #120
A SysOps administrator is troubleshooting connection timeouts to an Amazon EC2 instance that has a public IP address. The instance has a private IP address of 172.31.16.139. When the SysOps…
The correct answer is D. Network ACL outbound rules. See the full explanation below for the reasoning.
Submitted by tarun92· Mar 30, 2026Networking and Content Delivery
Question
A SysOps administrator is troubleshooting connection timeouts to an Amazon EC2 instance that has a public IP address. The instance has a private IP address of 172.31.16.139. When the SysOps administrator tries to ping the instance's public IP address from the remote IP address 203.0.113.12, the response is "request timed out." The flow logs contain the following information:
What is one cause of the problem?
Options
- AInbound security group deny rule
- BOutbound security group deny rule
- CNetwork ACL inbound rules
- DNetwork ACL outbound rules
How the community answered
(19 responses)- A5% (1)
- C11% (2)
- D84% (16)
Topics
#EC2 Networking#Network ACLs#Troubleshooting#ICMP
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