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Hosting & Deployment

Hosting & Deployment practice

DNS and TTL

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A site moves to a new IP next week. What should you change today?

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No signup · first signal after 5 answers · your score at session end

How software actually ships to production

The practical craft of shipping web apps — DNS and domains, TLS/HTTPS and certificates, CDNs and the edge, the compute models (serverless vs containers vs VMs vs PaaS) and cold starts, CI/CD pipelines and immutable artifacts, environment configuration and secrets, and zero-downtime release strategies (blue-green, canary, rolling) with rollback and observability. Scoped to how software ships — distributed-systems theory belongs to System Design and cluster internals to Kubernetes. Part of the Developer track.

• Meets you at your level — never too easy, never too hard.

• Adapts every question to how you’re doing.

• Tracks your level over time. Skill practice, not a test.

New here? Read the Hosting & Deployment guide

A free 16-minute primer — the mental model, the mistakes beginners make, and what to practice first.

Curriculum

176 concepts across 26 chapters, from foundations through advanced practice — each one a concept the adaptive question bank can teach and test.

A. What "deployed" actually means — the request path

B. Domains, registrars and delegation

C. DNS record types

D. TTL, caching and "propagation"

E. TLS certificates and issuance

F. Origin trust and the two TLS legs

G. CDN caching semantics

H. Cache keys, purging and invalidation

I. Reverse proxies and load balancers

J. Health checks, draining and zero-downtime

K. Static, server-rendered and hybrid output

L. Serverless and edge runtimes

M. State, storage and data locality

N. Container images and the Dockerfile

O. Build cache, image size and reproducibility

P. Registries and the orchestrator handoff

Q. Configuration and secrets in the pipeline

R. CI/CD: build once, preview, promote

S. Release strategies and rollback

T. Monitoring, logging and release signal

U. Cost, egress and capacity

V. Production failure modes

W. Web security headers, cookies and CORS

X. SLOs, error budgets and incident practice

Y. Asynchronous work: queues, retries and idempotency

Z. Infrastructure as code and drift

View the full curriculum →

Keentune is not affiliated with or endorsed by the organizations whose documentation informs these maps.

Start practicing — it’s free

No signup · first signal after 5 answers · your score at session end

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Hosting & Deployment on exams

Hosting & Deployment is one of the skills tested on these exams. Each prep page lays out what the real test covers and where this skill fits.

System design interview

AWS Solutions Architect

Terraform Associate

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