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Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 589 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02
Question #: 589
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

A company is deploying an application that processes streaming data in near-real time. The company plans to use Amazon EC2 instances for the workload. The network architecture must be configurable to provide the lowest possible latency between nodes.
Which combination of network solutions will meet these requirements? (Choose two.)

  • A. Place the EC2 instances in multiple VPCs, and configure VPC peering.
  • B. Run the EC2 instances in a spread placement group.
  • C. Attach an Elastic Fabric Adapter (EFA) to each EC2 instance.
  • D. Use Amazon Elastic Block Store (Amazon EBS) optimized instance types.
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Suggested Answer: BC 🗳️
by Curious76 at Sept. 7, 2022, 2:05 a.m.
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BECAUSE
1 year, 11 months ago
Selected Answer: BC
B and C are the answers
upvoted 1 times
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sassy2023
2 years, 3 months ago
Why spread and not ebs?
upvoted 1 times
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josh_fan
2 years, 6 months ago
I think C is right, but there could be a Option E i think...
upvoted 1 times
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rodriiviru
2 years, 7 months ago
Selected Answer: BC
B over D because is asking about networking solutions and D is a storage solution. But I not sure though
upvoted 1 times
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drinu89
2 years, 7 months ago
Selected Answer: CD
Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale on AWS.
upvoted 1 times
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nymets
2 years, 7 months ago
Selected Answer: BC
Its B + C. You can use Spread Placement Group to have instances on different hardware in the same AZ. Since they are in the same AZ, the network latency is reduced.
upvoted 1 times
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Curious76
2 years, 8 months ago
Selected Answer: BC
Elastic Fabric Adapter (EFA) is a network device that has OS-bypass capabilities for low-latency network communications with other instances on the same subnet.
upvoted 1 times
guptatrng
2 years, 8 months ago
A spread placement group is a group of instances that are each placed on distinct hardware. How would spread placement group reduce latency ? It can be CD.. not sure though..
upvoted 4 times
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