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You are helping a customer troubleshoot a problem. The customer has several Oracle Linux servers in a private subnet within a Virtual Cloud Network (VCN). The servers are configured to periodically communicate to the Internet to get security patches for applications Installed on them. The servers are unable to reach the Internet. An Internet Gateway has been deployed In the public subnet in the VCN and the appropriate routes are configured in the Route Table associated with the public subnet. Based on cost considerations, which option will fix this Issue?
Correct Answer: B
Recent Comments (The most recent comments are at the top.)
Abiyot - Nov 24, 2021
very good explanation
Abiyot - Nov 24, 2021
it is very intersting corse tanku.
ff - Jul 19, 2020
The answer should be "C. Create a NAT gateway in the VCN and configure the NAT gateway as the route target for the private subnet." Since your Linux server are in the private subnet, they cannot have public IP Address (Public IP Address is a requirement to use Internet Gateway), and only can access internet via NAT Gateway. From the user guide (documentation as following) "You can add a NAT gateway to your VCN to give instances in a private subnet access to the internet. Instances in a private subnet don't have public IP addresses. With the NAT gateway, they can initiate connections to the internet and receive responses, but not receive inbound connections initiated from the internet. l NAT gateways are highly available and support TCP, UDP, and ICMP ping traffic."
Recent Comments (The most recent comments are at the top.)
very good explanation
it is very intersting corse tanku.
The answer should be "C. Create a NAT gateway in the VCN and configure the NAT gateway as the route target for the private subnet."
Since your Linux server are in the private subnet, they cannot have public IP Address (Public IP Address is a requirement to use Internet Gateway), and only can access internet via NAT Gateway.
From the user guide (documentation as following)
"You can add a NAT gateway to your VCN to give instances in a private subnet access to the internet.
Instances in a private subnet don't have public IP addresses. With the NAT gateway, they can initiate connections to the internet and receive responses, but not receive inbound connections initiated from the internet.
l NAT gateways are highly available and support TCP, UDP, and ICMP ping traffic."
C is correct. Load balancer is not free,