Examkin

Question

Difficulty: MediumHigh-Performing and Elastic Compute Solutions

A financial services company is deploying a distributed, tightly-coupled risk modeling simulation on a fleet of Amazon EC2 instances in a private subnet. The simulation requires ultra-low latency and high-throughput node-to-node communication. Additionally, the simulation nodes must download several terabytes of historical market data from an Amazon S3 bucket at the beginning of each simulation run. Which combination of actions should a solutions architect recommend to meet these requirements in a high-performing and cost-effective manner? (Select TWO.)

  1. Launch the EC2 instances in a cluster placement group within a single Availability Zone.Answer
  2. Create a gateway VPC endpoint for Amazon S3 and associate it with the route tables of the private subnet.Answer
  3. C
    Launch the EC2 instances in a spread placement group across multiple Availability Zones to minimize network latency.
  4. D
    Deploy a NAT gateway in the public subnet and route all traffic destined for Amazon S3 through it.
  5. E
    Launch the EC2 instances in a partition placement group to distribute the workload across multiple physical partitions.

Answer

To meet the requirements, the solutions architect should launch the EC2 instances in a cluster placement group and create a gateway VPC endpoint for Amazon S3.
The correct strategy combines a cluster placement group to ensure ultra-low latency, high-throughput node-to-node networking with a gateway VPC endpoint for Amazon S3 to download large datasets cost-effectively and with high performance, bypassing the NAT gateway.

Step-by-Step Solution

1
Identify the networking requirement for tightly-coupled nodes.
Determine that ultra-low latency and high-throughput node-to-node communication requires a cluster placement group in a single Availability Zone.
Cluster placement groups enable instances to be physically close together on the same network hardware.
2
Determine the data transfer requirements for fetching terabytes of data from Amazon S3.
Identify that routing S3 traffic via a NAT gateway in a private subnet setup would incur high data processing costs and potential throughput limits.
Gateway VPC endpoints provide a direct, free route to Amazon S3 within the AWS network, bypassing the NAT gateway.

Key Concept

High-performing and cost-effective networking for EC2 instances and S3 connections.
Rate this question

Topics

High-Performing and Elastic Compute Solutions

More questions from this topic