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

❓ 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 is the primary purpose of Amazon ElastiCache in high-scale web applications?

Amazon ElastiCache accelerates application performance by caching frequently accessed data in sub-millisecond in-memory stores like Redis and Memcached.

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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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Aug 12, 2026

Quiz: What is a Container Runtime (e.g. <code>containerd</code>, <code>CRI-O</code>)?

A Container Runtime handles the lifecycle of containers on a node, interacting with Linux cgroups and namespaces to isolate processes.

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❓ Quiz Question

Aug 30, 2026

Quiz: What does the constraint of "Statelessness" mandate in REST architectural style?

Statelessness ensures that server-side session state is avoided, improving scalability and reliability across stateless microservices.

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❓ Quiz Question

Aug 30, 2026

Quiz: What is the key difference between HTTP status code 401 Unauthorized and 403 Forbidden?

401 Unauthorized means credentials are missing or invalid; 403 Forbidden means the server understands identity but refuses authorization.

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Aug 30, 2026

Quiz: What is the purpose of the HTTP OPTIONS method in REST web services?

Browsers send an OPTIONS request during CORS preflight checks to ascertain supported HTTP methods and headers before making cross-origin requests.

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❓ Quiz Question

Aug 30, 2026

Quiz: Which approach is widely considered best practice for REST API versioning?

Version control via URI paths ( /v1/ ) or custom Accept headers provides explicit backward compatibility for API consumers.

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