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❓ Quiz Question

Aug 12, 2026

Quiz: What is the core architectural difference between Amazon SQS and Amazon SNS?

SQS queues messages for worker polling (point-to-point); SNS broadcasts messages to multiple subscribing endpoints (fan-out push model).

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❓ Quiz Question

Aug 12, 2026

Quiz: At which OSI model layer does an Application Load Balancer (ALB) operate compared to a Network Load Balancer (NLB)?

An Application Load Balancer (ALB) makes intelligent routing decisions at Layer 7 (HTTP headers, URL paths); a Network Load Balancer (NLB) routes at Layer 4 (ultra-low latency TCP/UDP).

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Aug 12, 2026

Quiz: What does an Auto Scaling Group (ASG) do when traffic surges on an application?

An Auto Scaling Group dynamically adjusts instance count to maintain steady performance during traffic spikes and reduce costs during quiet periods.

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Aug 12, 2026

Quiz: How do Amazon RDS Read Replicas improve database performance?

Read Replicas allow read traffic (SELECT queries) to be handled by replica instances, freeing the primary database to handle write transactions.

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Aug 12, 2026

Quiz: What kind of database model is Amazon DynamoDB?

Amazon DynamoDB is a serverless NoSQL database designed for high-throughput applications requiring fast, predictable single-digit millisecond response times.

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❓ Quiz Question

Aug 12, 2026