SAA-C03 · Question #361
SAA-C03 Question #361: Real Exam Question with Answer & Explanation
The correct answer is B: Attach an Elastic Fabric Adapter (EFA) to each EC2 instance.. Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables high throughput, low-latency networking, and OS-bypass capabilities. EFAs are designed for applications that require fast inter-node communications, such as HPC, ML, and real-time analytics.
Question
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 networking solution meets these requirements?
Options
- APlace the EC2 instances in multiple VPCs, and configure VPC peering.
- BAttach an Elastic Fabric Adapter (EFA) to each EC2 instance.
- CRun the EC2 instances in a spread placement group.
- DUse Amazon Elastic Block Store (Amazon EBS) optimized instance types.
Explanation
Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables high throughput, low-latency networking, and OS-bypass capabilities. EFAs are designed for applications that require fast inter-node communications, such as HPC, ML, and real-time analytics. EFA provides significantly lower latency than traditional networking, which is ideal for real-time streaming and processing workloads.
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