AWS Solutions Architect FINAL EXAM
*Q&A* (100% Correct) 2025/2026
|VERIFIED|
Explain the benefits of using Amazon S3 Object Lock in a business setting.
Amazon S3 Object Lock enables businesses to prevent objects from being deleted or modified for
a fixed amount of time or indefinitely. This feature is useful for meeting regulatory compliance, enforcing
data retention policies, and protecting against accidental deletion or malicious activity.
Describe how Amazon RDS automated backups work and the scenarios where this is beneficial.
Amazon RDS automatically creates backups of your database instances during a backup window.
It provides point-in-time recovery, making it ideal for use cases requiring data restoration after accidental
deletions, crashes, or data corruption.
What is Amazon DynamoDB’s Auto Scaling, and why would it be used?
DynamoDB Auto Scaling automatically adjusts read and write capacity to handle changes in traffic
without manual intervention. This feature is beneficial to maintain application performance during traffic
spikes and reduce costs when demand decreases.
Describe the process of creating a high-availability architecture with Amazon EC2 instances and Elastic
Load Balancing.
To achieve high availability, deploy multiple EC2 instances across different Availability Zones and
use an Elastic Load Balancer to distribute incoming traffic among them. This approach ensures fault
tolerance, improved resilience, and consistent application uptime even during failures in one AZ.
How does AWS CloudFormation simplify infrastructure management?
AWS CloudFormation automates and simplifies infrastructure provisioning through templates,
allowing you to describe resources like EC2 instances, VPCs, and security groups in code. This reduces
manual processes, promotes consistency, and allows version-controlled, repeatable deployments.
Explain the difference between Amazon S3 Standard and Amazon S3 Glacier.
1
, Amazon S3 Standard is designed for frequently accessed data with low latency and high
throughput. Amazon S3 Glacier is optimized for infrequent access, providing a lower-cost storage option
for archival and long-term data retention needs with longer retrieval times.
What are the use cases for AWS Lambda functions in building serverless applications?
AWS Lambda functions can be used for real-time data processing, web or mobile application
backends, serverless APIs, automation tasks, and event-driven workflows without managing
infrastructure.
Describe how Amazon EBS Snapshots work and their use in disaster recovery.
EBS Snapshots create point-in-time backups of Amazon EBS volumes, stored in Amazon S3. These
snapshots can be used to restore volumes or create new ones, providing a reliable method to recover
data after failures or corruption.
What considerations should be made when migrating an on-premises database to Amazon Aurora?
Consider database compatibility, data transfer methods (AWS DMS or native tools), schema and
data integrity verification, application changes needed for Aurora-specific features, and
backup/restoration strategies to ensure a smooth transition.
Explain how AWS Identity and Access Management (IAM) policies enable fine-grained permissions for
users and services.
IAM policies specify permissions that control access to AWS resources using JSON-based
statements. Fine-grained policies allow specific actions on particular resources, enforcing least privilege
access and improving security posture.
Describe how Amazon CloudFront helps improve website performance for users globally.
Amazon CloudFront is a CDN that caches content at edge locations worldwide, reducing latency
and improving load times for users accessing content from geographically distributed servers closer to
them.
How can AWS Cost Explorer help with optimizing AWS costs?
AWS Cost Explorer provides tools to visualize, understand, and manage AWS usage and costs. By
analyzing spending trends and cost drivers, it can help identify cost-saving opportunities, optimize
resource utilization, and forecast future costs.
2
, What is AWS Multi-AZ deployment for Amazon RDS and why is it important?
Multi-AZ deployments create a standby replica of the database instance in another AZ,
automatically failing over during maintenance, network issues, or instance problems. This setup
improves availability and resilience.
Describe a common architecture for hosting a web application using Amazon ECS and Fargate.
A typical setup involves using Amazon ECS with Fargate to run containerized applications.
Application Load Balancer routes traffic to ECS services, and tasks are launched using Fargate’s serverless
compute engine, removing the need for EC2 provisioning and scaling.
What security best practices should be implemented when using Amazon S3 buckets?
Best practices include enabling bucket policies, disabling public access unless necessary, using
server-side encryption, logging access requests, enabling versioning, and applying IAM roles for resource
access control.
Explain Amazon Redshift’s columnar storage design and why it benefits analytical workloads.
Amazon Redshift’s columnar storage allows for efficient compression and reading of data,
enabling faster queries on large datasets by scanning only necessary columns. This design is beneficial
for analytical workloads like business intelligence and data warehousing.
How do VPC Peering and Transit Gateways differ in terms of network connectivity in AWS?
VPC Peering establishes direct, one-to-one connections between VPCs, while Transit Gateways
enable more scalable, hub-and-spoke architectures that connect multiple VPCs, on-premises networks,
and edge locations through a single gateway.
Describe how to use AWS Systems Manager Parameter Store for configuration management.
AWS Systems Manager Parameter Store stores configuration data and secrets (like API keys). This
enables centralized, secure, version-controlled parameter management across applications, with
integration capabilities for AWS services.
What is an Amazon Route 53 latency-based routing policy, and when is it used?
3
