A user has created an ELB with three instances. How many security groups will ELB create by default?
A.
3
B.
5
C.
2
D.
1
Explanation:
Elastic Load Balancing provides a special Amazon EC2 source security group that the user can use to ensure that backend EC2 instances receive traffic only from Elastic Load Balancing. This feature needs two security groups: the source
security group and a security group that defines the ingress rules for the back-end instances. To ensure that traffic only
flows between the load balancer and the back-end instances, the user can add or modify a rule to the back-end security
group which can limit the ingress traffic. Thus, it can come only from the source security group provided by Elastic load
Balancing.
C
0
0
I think, this is outdated question.
0
0
Yes, I have same doubt. As per new ans it would create 1 security group.
0
0
C
0
0
This is an outdated question, refer: http://jayendrapatil.com/aws-elastic-load-balancing/
Correct answer in present situation is D.
1
0