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

Amazon CloudFront securely delivers data, videos, applications, and APIs to users globally with low latency and high transfer speeds via edge locations.

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Aug 12, 2026

Quiz: In Linux, what permissions are granted by the command <code>chmod 755 script.sh</code>?

755 octal notation assigns rwx (4+2+1=7) to Owner, and r-x (4+0+1=5) to Group and Others.

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Aug 30, 2026

Quiz: What is the role of Chaos Engineering (e.g. Chaos Mesh, Gremlin) in DevOps?

Chaos Engineering proactively tests system fault-tolerance under turbulent conditions before unexpected real-world outages occur.

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Aug 30, 2026

Quiz: What is the purpose of Django ORM `Q` objects?

Q objects allow developers to build complex keyword queries combining logical conditions in Django ORM filters.

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Aug 30, 2026

Quiz: What is the purpose of Matrix Builds in CI pipelines?

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

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Aug 30, 2026

Quiz: What is Topology Spread Constraints in K8s Pod scheduling?

Topology Spread Constraints prevent Pod concentration in single failure domains.

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