Teach Cloud - Cloud, DevOps, and Python Backend Development Blog

❓ 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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❓ Quiz Question

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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❓ Quiz Question

Aug 12, 2026

Quiz: What is AWS Fargate?

AWS Fargate lets you run Docker containers without having to provision, configure, patch, or scale virtual machine clusters yourself.

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❓ Quiz Question

Aug 12, 2026

Quiz: What makes a cloud architecture "stateless" and why is it desirable?

… stateless architectures , state is stored in centralized datastores/caches, allowing individual application nodes to be freely added or removed without disrupting users.

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❓ Quiz Question

Aug 12, 2026

Quiz: What is a Multi-Region Active-Active cloud deployment?

An Active-Active Multi-Region setup distributes user traffic across multiple live cloud regions simultaneously, providing near-zero downtime even if an entire region fails.

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❓ Quiz Question

Aug 12, 2026

Quiz: In cloud observability, how do Prometheus and Grafana complement each other?

Prometheus acts as the time-series metric collector and alerting engine, while Grafana provides rich visualization dashboards.

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❓ Quiz Question

Aug 12, 2026

Quiz: What is a Blue/Green Deployment strategy?

Blue/Green deployments minimize downtime and risk by spinning up the new release alongside the current version and flipping traffic at the router once validated.

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