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Solutions Architect Cost Optimization & Performance Flashcards

7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Solutions Architect Cost Optimization & Performance flashcards as text

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

    Answer: Spot Instances

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

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

    Answer: S3 Intelligent-Tiering

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

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

    Answer: Add RDS Read Replicas

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

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

    Answer: AWS Trusted Advisor

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

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

    Answer: AWS Compute Optimizer

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

  6. What is the most cost-effective storage option for backup data that is rarely accessed and must be retained for 7 years?

    Answer: S3 Glacier Deep Archive

    S3 Glacier Deep Archive offers the lowest storage cost at ~$0.00099/GB/month, designed for long-term archival with 12-hour retrieval.

  7. A team uses NAT Gateway to allow private subnet instances to access the internet. What can reduce NAT Gateway data processing costs for S3 traffic?

    Answer: Use a VPC Gateway Endpoint for S3

    A VPC Gateway Endpoint for S3 routes traffic privately within AWS, bypassing the NAT Gateway and eliminating its data processing charges.