Which AWS Service Gives the Least Latency for On-Premises Factory Equipment?
A company has applications that control on-premises factory equipment. Which AWS service should the company use to run these applications with the LEAST latency?
Community Votes
100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The question tests hybrid deployment for latency-sensitive industrial control, and the trap is assuming any AWS compute service (EC2, Lambda, Fargate) is equally close to the factory floor.
Applications that directly control on-premises factory equipment require the lowest possible round-trip latency, which points to running AWS compute locally rather than in a Region. This page establishes why AWS Outposts is the answer and why EC2, Lambda, and Fargate cannot match on-premises latency.
Choosing Amazon EC2, because it is the default compute service; however EC2 instances live in AWS Regions, so control traffic to on-premises equipment still crosses the network and adds latency.
Community Discussion (3 comments)
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Expert Analysis
Why the Answer Is Correct
AWS Outposts is a fully managed service that extends AWS infrastructure, services, APIs, and tools to on-premises locations, providing local compute and storage next to the factory equipment. The question's keywords "on-premises factory equipment" and "LEAST latency" require the workload to sit on the factory network itself, so control signals never leave the local environment. Because Outposts runs the same AWS APIs and tooling, the company gets cloud-like operations without the network round trip. That combination of local execution and AWS consistency is exactly what the scenario demands.Why the Other Options Are Wrong
Amazon EC2, AWS Lambda, and AWS Fargate all execute in AWS Regions, so any request from the application to the factory machinery would traverse the public network or a hybrid connection, adding latency and a dependency on WAN availability. Lambda and Fargate are additionally serverless or container abstractions that provide no dedicated hardware at the factory site. Plain EC2 could only be brought close to the equipment through Outposts or a Local Zone, which is not what option B describes. None of these services guarantees the local, deterministic latency that direct equipment control needs.Community Comment Notes
Commenters unanimously selected Outposts. As alokdixit2006 noted, "AWS Outposts allow you to extend and run AWS services on premises", which is the core reason it fits an on-premises factory. its_tima expanded on this by describing Outposts support for workloads needing "low latency access to on-premises systems, local data processing, data residency", and d00b229 concisely recorded "A. AWS Outposts". The 100-vote consensus matches the technical reasoning behind the correct option.Exam Strategy
When a CLF-C02 question mentions on-premises equipment, low latency, local data processing, or data residency, scan for AWS Outposts (or Local Zones) before considering standard compute services. Anchor on the exact qualifier in the stem, such as "LEAST latency", because it is usually the discriminator between a regional service and a hybrid edge service.Official Reference
Exam Strategy
Look for latency, on-premises, and local-processing keywords; those signal Outposts rather than EC2, Lambda, or Fargate. On the real exam, eliminate any regional-only service first when the workload must sit beside physical equipment.
Frequently Asked Questions
Why is Amazon EC2 wrong for latency-sensitive factory equipment control?
EC2 instances run in AWS Regions, so command traffic to on-premises machinery still crosses the network and adds latency; Outposts places the compute locally instead.
When should a company choose AWS Outposts over AWS Lambda?
Choose Outposts when workloads must execute on premises for low latency, local data processing, or data residency; Lambda runs regionally and cannot provide local hardware.
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