Select the correct set of options. These are the initial settings for the default security group:
A . Allow no inbound traffic, Allow all outbound traffic and Allow instances associated with this security group to talk to each other
B . Allow all inbound traffic, Allow no outbound traffic and Allow instances associated with this security group to talk to each other
C . Allow no inbound traffic, Allow all outbound traffic and Does NOT allow instances associated with this security group to talk to each other
D . Allow all inbound traffic, Allow all outbound traffic and Does NOT allow instances associated with this security group to talk to each other
Answer: A
Explanation:
A default security group is named default, and it has an ID assigned by AWS. The following are the initial settings for each default security group:
Allow inbound traffic only from other instances associated with the default security group Allow all outbound traffic from the instance
The default security group specifies itself as a source security group in its inbound rules. This is what
allows instances associated with the default security group to communicate with other instances
associated with the default security group.
Reference: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-security-groups.html#default-%20security-group