Design highly available and/or fault-tolerant architectures.
33 practice questions under this official exam objective (SAA-C03), each with the answer key, an option-by-option explanation and instant feedback.
Questions under this objective
33 total · page 1 of 2Storing and Retrieving Bicycle Location Data via REST API
This SAA-C03 scenario requires a multi-tier serverless architecture where bicycle location data is stored and exposed through a REST API for consumpti
Reducing RDS Reads with High Availability
This SAA-C03 scenario asks how to cut a heavy read load on multiple Amazon RDS databases while preserving high availability. Amazon ElastiCache for Re
Which EC2 purchase model mix for unpredictable SQS load?
For an SQS-driven EC2 worker fleet with unpredictable, intermittent message volume, the most cost-effective design is Reserved Instances covering the
Aurora Multi-AZ Auto Scaling for Read-Heavy Ecommerce DB
This SAA-C03 scenario asks how to replace a struggling self-managed MySQL EC2 database with a service that scales read capacity automatically and stay
How to Make Legacy EC2 Applications Fault Tolerant After Migration?
Legacy EC2 applications that cannot be redesigned achieve fault tolerance by cloning each server from an AMI and running the copies in separate Availa
Low-Latency Block Storage Multi-AZ Migration
This question tests designing a highly available, low-latency block storage solution for a Windows Server migration with minimal implementation effort
Single-Instance Fault Tolerance with Auto Scaling
This question tests the design of fault-tolerant architectures for legacy applications that cannot be modified to run on multiple instances simultaneo
AWS Transfer Family with Amazon EFS for Batch Processing
This question evaluates the design of a highly available, low-operational-effort SFTP solution using AWS Transfer Family and Amazon EFS to support nig
How Do You Add Static IPs and AWS WAF to a Multi-Region HTTP App?
A global HTTP application running on EC2 in multiple Regions must simultaneously gain performance, high availability, AWS WAF protection against web e
Route 53 Routing for Closest EC2 Instances Globally
This question tests Amazon Route 53 routing policies for directing global users to the closest EC2 instances across multiple AWS Regions. The correct
Aurora Global Database Active-Passive DR Strategy
This question evaluates the design of a cost-optimized disaster recovery solution using Aurora Global Database and Route 53 active-passive failover to
Aurora Global Database Warm Standby for Lowest DR RTO
This SAA-C03 disaster recovery question compares Aurora global database pilot light and warm standby deployments against RDS Multi-AZ. The lowest-RTO
How to Prevent Duplicate Lambda Payments with SQS FIFO?
A payment processing application on AWS Lambda must avoid duplicate payments across multiple Availability Zones; Amazon SQS FIFO queues provide exactl
Three-Tier MySQL Migration to AWS with PITR
This SAA-C03 question tests how to migrate a three-tier MySQL application to AWS with the fewest changes while enabling point-in-time recovery. The co
Achieving High Availability with Auto Scaling and DynamoDB
This question addresses designing highly available architectures by distributing EC2 instances across multiple Availability Zones and migrating embedd
EC2 Instance Recovery with CloudWatch Alarms
This question evaluates designing highly available architectures for legacy EC2 workloads where code modification is restricted. It establishes that A
Scaling Aurora PostgreSQL with RDS Proxy and Reader Instances
This question addresses scaling an Amazon Aurora PostgreSQL cluster under heavy read and write load to resolve timeout issues. The correct solution co
Design Scalable and HA Web App with Aurora
This question tests designing a scalable, highly available architecture using Auto Scaling Groups, Application Load Balancers, and Amazon Aurora MySQL
Minimal Downtime DR with Auto Scaling and DynamoDB Global Tables
This question addresses designing a highly available disaster recovery architecture using AWS Auto Scaling, ELB, and DynamoDB Global Tables to achieve
Which Load Balancer Provides a Static IP for Client Whitelisting?
This SAA-C03 question tests how to give firewall-restricted clients a static IP for an EC2 web service behind an ELB. The correct design is a Network