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DevOps / Github Interview questions

What is the difference between GitHub.com and GitHub Enterprise Server?

GitHub.com is the fully managed, cloud-hosted SaaS product: sign up and start using it, with GitHub handling infrastructure, scaling, and uptime. GitHub Enterprise Server is a self-hosted version of GitHub that an organization installs and runs on its own infrastructure, typically for compliance, data residency, or air-gapped network requirements.

GitHub.comEnterprise Server
GitHub hosts and maintains everything.The organization hosts and maintains its own instance.
Upgrades roll out automatically.Upgrades are scheduled and applied manually.
Data lives on GitHub's infrastructure.Data stays within the organization's own infrastructure.
No local setup required.Requires servers, backups, and dedicated admin effort.

Organizations under strict regulatory requirements, or that need to run entirely disconnected from the public internet, typically choose Enterprise Server; most other teams default to GitHub.com to avoid running infrastructure themselves.

Who is responsible for server maintenance on GitHub.com?
A common reason to choose GitHub Enterprise Server is:

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