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Add a couple of questions
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README.md

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:information_source:  This repository contains questions on various DevOps and SRE related topics
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:bar_chart:  There are currently **655** questions
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:bar_chart:  There are currently **658** questions
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:books:  To learn more about DevOps check the resources in [DevOpsBit.com](https://devopsbit.com)
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<td align="center"><a href="#virtualization"><b>Virtualization</b></a><br /><sub><a href="#virtualization-beginner">Beginner :baby:</a></sub><br><sub></td>
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<td align="center"><a href="#operating-system"><b>Operating System</b></a><br /><sub><a href="#operating-system-beginner">Beginner :baby:</a></sub><br><sub></td>
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<td align="center"><a href="#distributed"><img src="images/distributed.png" width="110px;" height="75px;" alt="Distributed"/><br /><b>Distributed</b></a></td>
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<td align="center"><a href="#general"><img src="images/general.png" width="110px;" height="75px;" alt="General"/><br /><b>General</b></a></td>
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<td align="center"><a href="#general"><b>General</b></a><br /><sub><a href="#general-beginner">Beginner :baby:</a></sub><br><sub></td>
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<td align="center"><a href="#HR"><img src="images/HR.png" width="110px;" height="75px;" alt="HR"/><br /><b>HR</b></a></td>
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</tr>
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<tr>
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<td align="center"><a href="#scenarios"><img src="images/scenarios.png" width="110px;" height="75px;" alt="Scenarios"/><br /><b>Scenarios</b></a></td>
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</tr>
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</table>
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Stateful applications depend on the storage to save state and data, typically databases are stateful applications.
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</b></details>
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<details>
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<summary>What is HTTP?</summary><br><b>
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</b></details>
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<details>
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<summary>Describe HTTP request lifecycle</summary><br><b>
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* Resolve host by request to DNS resolver
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* Client SYN
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* Server SYN+ACK
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* Client SYN
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* HTTP request
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* HTTP response
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</b></details>
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<details>
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<summary>True or False? HTTP is stateful</summary><br><b>
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False. Server doesn't maintain state for incoming request.
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</b></details>
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<details>
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<summary>How HTTP request looks like?</summary><br><b>
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It consits of:
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* Request line - request type
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* Headers - content info like length, enconding, etc.
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* Body (not always included)
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</b></details>
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<details>
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<summary>What is HTTPS?</summary><br><b>
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</b></details>
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<details>
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<summary>Describe the workflow of setting up some type of web server (Apache, IIS, Tomact, ...)</summary><br><b>
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</b></details>
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<summary>Have you contributed to an open source project? Tell me about this experience</summary><br><b>
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</b></details>
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<details>
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<summary>When you publish a project, you usually publish it with a license. What types of licenses are you familiar with and which one do you prefer to use?</summary><br><b>
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</b></details>
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## Jenkins
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<a name="jenkins-beginner"></a>
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<summary>Explain "Forward Secrecy"</summary><br><b>
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</b></details>
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<details>
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<summary>What is Cache Poisoned Denial of Service?</summary><br><b>
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</b></details>
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## Puppet
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<a name="puppet-beginner"></a>
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## General
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Although the following questions are not DevOps related, they are still quite common so it's better to prepare for them as well.
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<details>
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<summary>What is HTTP?</summary><br><b>
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</b></details>
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<details>
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<summary>Describe HTTP request lifecycle</summary><br><b>
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* Resolve host by request to DNS resolver
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* Client SYN
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* Server SYN+ACK
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* Client SYN
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* HTTP request
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* HTTP response
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</b></details>
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<details>
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<summary>True or False? HTTP is stateful</summary><br><b>
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False. Server doesn't maintain state for incoming request.
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</b></details>
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<details>
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<summary>How HTTP request looks like?</summary><br><b>
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It consits of:
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* Request line - request type
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* Headers - content info like length, enconding, etc.
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* Body (not always included)
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</b></details>
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<details>
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<summary>What HTTP method types are there?</summary><br><b>
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* GET
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* POST
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* HEAD
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* PUT
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* DELETE
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* CONNECT
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* OPTIONS
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* TRACE
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</b></details>
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<details>
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<summary>What HTTP response codes are there?</summary><br><b>
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* 1xx - informational
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* 2xx - Success
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* 3xx - Redirect
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* 4xx - Error, client fault
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* 5xx - Error, server fault
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</b></details>
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<details>
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<summary>What is HTTPS?</summary><br><b>
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</b></details>
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<details>
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<summary>When you publish a project, you usually publish it with a license. What types of licenses are you familiar with and which one do you prefer to use?</summary><br><b>
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</b></details>
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## HR
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Although the following questions are not DevOps related, they are still quite common and part of the DevOps interview process so it's better to prepare for them as well.
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<details>
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<summary>Tell us little bit about yourself</summary><br><b>
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