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Front-End Web and Mobile

Core

Amazon API Gateway

Managed front door for REST, HTTP, and WebSocket APIs with authorization, throttling, and service integrations.

Key points

  • API Gateway can authorize and throttle callers before invoking backends.
  • It integrates with Lambda and other services, enabling serverless API patterns without a conventional application fleet.
  • Caching, stages, payload behavior, and endpoint exposure should be selected only when required; private APIs use supported VPC endpoint patterns.

Best-known use cases

  • Expose a managed serverless API.
  • Provide public, regional, edge-optimized, or private API access according to API type and design.

What candidates often confuse it with

  • API Gateway provides API-management features; ALB distributes HTTP traffic to application targets.
  • API Gateway handles synchronous request entry; SQS buffers asynchronous background work.

Key takeaway

Choose API Gateway when managed API authorization, throttling, transformations, or service integration is decisive.

Related services

  • AWS Lambda
  • Amazon Cognito
  • Amazon SQS
  • Elastic Load Balancing (ELB)

Relevant exam tasks

  • D2.1
  • D4.4

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Free AWS Certified Solutions Architect - Associate prep

Build focused SAA-C03 quizzes from skill areas, topics, and product references.

Practice with exam-style multiple-choice and multiple-response questions, score breakdowns, explanations, and a compact reference for this lane's official exam domains.

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Exam Weights

Exam snapshot

SAA-C03 at a glance

Category
Associate
Duration
130 minutes
Questions
65 total; 50 scored and 15 unidentified unscored
Formats
Multiple choice and multiple response
Scoring
100–1,000 scaled score; 720 minimum passing score

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Exam fidelity: AWS documents 65 questions in 130 minutes: 50 scored and 15 unidentified unscored, using multiple-choice and multiple-response formats. This site's practice accuracy and readiness do not reproduce AWS's 100–1,000 scaled scoring or identify unscored items. Difficulty labels describe this site's Associate-level scenario complexity, not an AWS-published question rating.

Reference

SAA-C03 topics and reference map

Study links

SAA-C03 resources

Official AWS resources

SAA-C03 official exam guide

The live AWS guide with target candidate, exam mechanics, task statements, domain weights, and current service scope.

AWS Solutions Architect - Associate certification

Official certification overview, scheduling details, exam logistics, and preparation path.

AWS Skill Builder SAA-C03 Exam Prep Plan

Official SAA-C03 preparation plan and entry point for AWS exam-prep learning resources.