SAP-C02 · Question #205
A company is deploying a distributed in-memory database on a fleet of Amazon EC2 instances. The fleet consists of a primary node and eight worker nodes. The primary node is responsible for monitoring
The correct answer is C. Launch memory optimized EC2 instances in a cluster placement group. The cluster placement group is indicated for high troughput and low network latency, while the partition placement group is used to avoid hw failures separating the instances in groups running over different hardware. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-
Question
A company is deploying a distributed in-memory database on a fleet of Amazon EC2 instances. The fleet consists of a primary node and eight worker nodes. The primary node is responsible for monitoring cluster health, accepting user requests, distributing user requests to worker nodes and sending an aggregate response back to a client. Worker nodes communicate with each other to replicate data partitions. The company requires the lowest possible networking latency to achieve maximum performance. Which solution will meet these requirements?
Options
- ALaunch memory optimized EC2 instances in a partition placement group
- BLaunch compute optimized EC2 instances in a partition placement group
- CLaunch memory optimized EC2 instances in a cluster placement group
- DLaunch compute optimized EC2 instances in a spread placement group
How the community answered
(23 responses)- A13% (3)
- B4% (1)
- C74% (17)
- D9% (2)
Explanation
The cluster placement group is indicated for high troughput and low network latency, while the partition placement group is used to avoid hw failures separating the instances in groups running over different hardware. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html#placement-
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