What is a placement group?

What is a placement group?
A . A collection of Auto Scaling groups in the same region
B . A feature that enables EC2 instances to interact with each other via high bandwidth, low latency connections
C . A collection of authorized CloudFront edge locations for a distribution
D . A collection of Elastic Load Balancers in the same Region or Availability Zone

View Answer

Answer: B

Explanation:

Reference: http://docs.aws.amazon.com/AWSEC2/Iatest/UserGuide/placement-groups.html