AWS Solutions Architect Cost Optimization & Performance 2

Question 1

A company runs analytical workloads on EC2 that can tolerate interruptions. Which purchasing option provides the deepest discount?

Accepted Answer

Spot Instances

Answer

Spot Instances offer up to 90% discount over On-Demand but can be interrupted when EC2 needs capacity back.

Question 2

Which S3 storage class automatically moves objects between tiers based on access patterns without retrieval fees?

Accepted Answer

S3 Intelligent-Tiering

Answer

S3 Intelligent-Tiering monitors access patterns and moves objects automatically between frequent, infrequent, and archive tiers with no retrieval charges.

Question 3

An application experiences read-heavy traffic on RDS MySQL. What is the most cost-effective way to scale read capacity?

Accepted Answer

Add RDS Read Replicas

Answer

RDS Read Replicas offload read traffic from the primary instance at lower cost than scaling up the primary.

Question 4

Which AWS tool analyzes your account and provides recommendations to reduce costs based on usage history?

Accepted Answer

AWS Trusted Advisor

Answer

AWS Trusted Advisor inspects your environment and provides recommendations across cost optimization, security, performance, and fault tolerance.

Question 5

A company wants to right-size EC2 instances without manual analysis. Which service provides automated recommendations?

Accepted Answer

AWS Compute Optimizer

Answer

AWS Compute Optimizer uses machine learning to analyze CloudWatch metrics and recommends optimal EC2 instance types.

AWS Practice Test

AWS Practice Test

AWS Solutions Architect Cost Optimization & Performance 2