AWS Well-Architected Framework

Which of the following are design principles for the AWS-Architected Sustainability Pillar?

• Use managed services

• Maximize utilization

• Prepare for security events

• Make frequent small, reversible changes

• Consider mechanical sympathy

Which AWS service enables you to review the state of your applications and workloads against AWS best practices by answering foundational questions with the option to create your own custom lenses?

• AWS Trusted Advisor

• AWS Personal Health Dashboard

• AWS Well-Architected Tool

• AWS Inspector

Which design principles represent best practices as described by reliability pillar of the AWS Well-Architected framework? ( Choose two)

• Perform operation as code

• Automatically recover from failure

• Scale horizontally to increase aggregate workload availability

• Use serverless architectures

Which pillar of the AWS Well-Architected Framework focuses on preventing unauthorized access to data?

• Operational Excellence

• Security

• Performance Efficiency

• Cost Optimization

Answer explanation

The Security pillar ensures that only authorized users can access systems and data. AWS provides tools like IAM (Identity and Access Management) and encryption to protect against hackers.

If an application automatically switches to a backup server when the main one fails, which pillar is being applied?

• Reliability

• Sustainability

• Operational Excellence

• Cost Optimization

Answer explanation

The Reliability pillar ensures systems can recover from failures. AWS features like Auto Scaling and Multi-AZ deployments help maintain uptime.

Which AWS service helps track and optimize cloud spending under the Cost Optimization pillar?

• Amazon S3

• AWS Cost Explorer

• Amazon EC2

• AWS Lambda

Answer explanation

Explanation:
AWS Cost Explorer analyzes spending patterns and suggests ways to reduce costs, aligning with the Cost Optimization pillar.

What does the Performance Efficiency pillar recommend for selecting computing resources?

• Always choose the cheapest option

• Pick the smallest possible servers

• Use the right-sized resources for the workload

• Avoid using auto-scaling

Answer explanation

Explanation:
Performance Efficiency means matching server capacity to actual needs—not too big (wasteful) or too small (slow). AWS offers tools like EC2 instance types and Auto Scaling for flexibility.

Which pillar emphasizes reducing environmental impact through energy-efficient data centers?

• Security

• Sustainability

• Operational Excellence

• Reliability

Answer explanation

Explanation:
The Sustainability pillar encourages using renewable energy and efficient cooling in AWS data centers to minimize carbon footprint.

What is the main goal of the Operational Excellence pillar?

• Minimize costs

• Run and improve systems efficiently

• Block all external users

• Use the fastest servers available

Answer explanation

Explanation:
Operational Excellence focuses on monitoring, automation, and continuous improvement—like a well-managed school IT system.

Which AWS feature helps enforce security policies under the Security pillar?

• Amazon RDS

• AWS IAM (Identity and Access Management)

• Amazon SNS

• AWS CloudTrail

Answer explanation

Explanation:
AWS IAM controls who can access what in an AWS account, ensuring security policies are followed.