Linux for Developers Course
Linux for Developers
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Advanced

DevOps-Oriented Questions

Definition

Questions focusing on the intersection of Linux, networking, Docker, and automation.

Explain Like I'm New

Proving you understand how Linux powers modern cloud infrastructure.

Real World Example

Interview Question: 'How does Docker actually isolate containers on a Linux host? Explain namespaces and cgroups.'

Common Use Cases

  • •Cloud Engineer interviews
  • •Platform Engineering interviews

Interview Questions

basic

  • What is the primary purpose of SSH Keys in a CI/CD pipeline?

intermediate

  • Explain the purpose of the `/etc/hosts` file and how it relates to DNS.

Flash Cards

Question

SSH Keys in CI/CD?

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Answer

They allow automated deployment scripts (like Jenkins or GitHub Actions) to securely log into production servers and deploy code without a human being present to type a password.

Question

What is /etc/hosts?

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Answer

It is a local, manual override for DNS. Before a Linux machine asks a DNS server for an IP address, it checks `/etc/hosts`. Developers use it to point a production domain (like `company.com`) to `127.0.0.1` locally for testing.