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

❓ Quiz Question

Aug 30, 2026

Quiz: What is the functional difference between `EXPOSE 80` in a Dockerfile and `-p 8080:80` in `docker run`?

EXPOSE documents intended container ports; -p (port publishing) maps actual host network sockets to container ports.

#Docker & Containers #Quiz #Interactive

❓ Quiz Question

Aug 30, 2026

Exit code 137 occurs when container memory usage exceeds cgroup limits, causing kernel OOM killer termination.

#Docker & Containers #Quiz #Interactive

❓ Quiz Question

Aug 30, 2026

EC2 Instance Profiles attach IAM Roles to instances, issuing short-lived credentials via metadata service.

#AWS Cloud Services #Quiz #Interactive

❓ Quiz Question

Aug 30, 2026

Matrix builds allow testing code across combinations of runtime versions (e.g. Python 3.9, 3.10, 3.11 on Ubuntu and macOS).

#CI/CD Pipelines #Quiz #Interactive

❓ Quiz Question

Aug 30, 2026

Helm packages Kubernetes manifests into reusable version-controlled charts.

#Kubernetes Operations #Quiz #Interactive

❓ Quiz Question

Oct 25, 2026

The Broker delivers task invocation payloads to worker queues; the Result Backend stores async return values, exceptions, and task states.

#Microservices & Distributed Systems #Quiz #Interactive

❓ Quiz Question

Oct 25, 2026

Multi-stage builds strip out compilers (gcc, build-essential, headers), producing tiny, secure production container images (e.g. python:3.12-slim ).

#Microservices & Distributed Systems #Quiz #Interactive