What is a Security Group?
A.
None of these.
B.
A list of users that can access Amazon EC2 instances.
C.
An Access Control List (ACL) for AWS resources.
D.
A firewall for inbound traffic, built-in around every Amazon EC2 instance.
What is a Security Group?
What is a Security Group?
D
D
A security group acts as a virtual firewall for your instance to control inbound and outbound traffic.
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_SecurityGroups.html
I would say A
this is none of these D is not correct because it’s not only for inbound but also for outbound
I agree A: could be answer but Answer is D:
As in D “firewall for inbound means” it blocks all inbound by default and allows only outbound.
“only” word is not mentioned in the question so D is the right answer I think
D is the right answer.
D
A security group acts as a virtual firewall that controls the traffic for one or more instances. When you launch an instance, you associate one or more security groups with the instance. You add rules to each security group that allow traffic to or from its associated instances. You can modify the rules for a security group at any time; the new rules are automatically applied to all instances that are associated with the security group. When we decide whether to allow traffic to reach an instance, we evaluate all the rules from all the security groups that are associated with the instance.
D
D.
A firewall for inbound traffic, built-in around every Amazon EC2 instance.
D is the 100% correct answer
C.
An Access Control List (ACL) for AWS resources.