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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
Correct Answer: B
Explanation/Reference:
Explanation:
A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups enables applications to participate in a low-latency, 10 Gigabits per second (Gbps) network. Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html
