Exam AWS Certified Solutions Architect - Professional topic 1 question 848 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional

Question #: 848
Topic #: 1

[All AWS Certified Solutions Architect - Professional Questions]

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?

A. Launch memory optimized EC2 instances in a partition placement group.
B. Launch compute optimized EC2 instances in a partition placement group.
C. Launch memory optimized EC2 instances in a cluster placement group
D. Launch compute optimized EC2 instances in a spread placement group.

Show Suggested Answer

Suggested Answer: C 🗳️

by mostafasookar at April 21, 2022, 6:28 a.m.

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mostafasookar

Highly Voted 2 years, 7 months ago

C is correct

upvoted 9 times

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janvandermerwer

Most Recent 2 years ago

Selected Answer: C

Cluster = Close together for high performance, networking etc. Partition = Spread so they don't share the same underlying hardware Spread = Similar to above, but alot stricter.

upvoted 4 times

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joancarles

2 years, 2 months ago

Selected Answer: C

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.

upvoted 4 times

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Sathish1412

2 years, 2 months ago

Selected Answer: A

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 https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html

upvoted 3 times

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Enigmaaaaaa

2 years, 4 months ago

Selected Answer: C

C - memory instance + cluster to have lowest possible network latency.

upvoted 3 times

gondohwe

2 years, 4 months ago

yes from correct indeed..a Cluster placement group allows intsances to be grouped together minimizing latency between them

upvoted 1 times

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