Add coding questions
Also removed a couple of questions I added in the past but didn't really like.
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README.md
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README.md
@ -3,7 +3,7 @@
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:information_source: This repository contains interview questions on various DevOps related topics
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:bar_chart: There are currently **399** questions
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:bar_chart: There are currently **400** questions
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:warning: You don't need to know how to answer all the questions in this repo. DevOps is not about knowing all :)
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@ -45,6 +45,7 @@
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<td align="center"><a href="#openstack"><img src="images/openstack.png" width="75px;" height="75px;" alt="openstack"/><br /><b>OpenStack</b></a><br /><sub><a href="#openstack-beginner">Beginner :baby:</a></sub><br><sub><a href="#openstack-advanced">Advanced :star:</a></sub></td>
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<td align="center"><a href="#security"><img src="images/security.png" width="75px;" height="75px;" alt="security"/><br /><b>Security</b></a><br /><sub><a href="#security-beginner">Beginner :baby:</a></sub><br><sub></td>
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<td align="center"><a href="#puppet"><img src="images/puppet.png" width="75px;" height="75px;" alt="puppet"/><br /><b>Puppet</b></a><br /><sub><a href="#puppet-beginner">Beginner :baby:</a></sub><br><sub><a href="#puppet-advanced">Advanced :star:</a></sub></td>
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<td align="center"><a href="#coding"><img src="images/coding.png" width="75px;" height="75px;" alt="coding"/><br /><b>Coding</b></a><br /><sub><a href="#coding-beginner">Beginner :baby:</a></sub><br><sub><a href="#coding-advanced">Advanced :star:</a></sub></td>
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</tr>
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</table>
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</center>
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@ -116,18 +117,6 @@ You may use one or all of the following:
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* architecture aspects - agent vs. agentless, master vs. masterless, etc.
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</b></details>
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<details>
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<summary>What the difference between VPN and VPS?</summary><br><b>
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</b></details>
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<details>
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<summary>What scripting language are you familiar with? why specifically this one?</summary><br><b>
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</b></details>
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<details>
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<summary>How long do you think it would take you to learn another language?</summary><br><b>
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</b></details>
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<details>
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<summary>Explain mutable vs. immutable infrastructure</summary><br><b>
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@ -183,10 +172,6 @@ which follows the immutable infrastructure paradigm.
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<summary>How would you structure/implement CD for an application which depends on several other applications?</summary><br><b>
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</b></details>
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<details>
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<summary>Explain what are design patterns. Which design patterns are you familiar with?</summary><br><b>
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</b></details>
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<details>
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<summary>How do you measure your CI/CD quality? Are there any metrics you are using?</summary><br><b>
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</b></details>
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@ -1635,6 +1620,44 @@ Swarm management which means you can create new swarms in Docker Cloud.
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<summary>Do you know how to create a new user without using adduser/useradd command?</summary><br><b>
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</b></details>
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## Coding
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<a name="coding-beginner"></a>
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#### :baby: Beginner
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<details>
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<summary>What programming language do you prefer to use for DevOps related tasks? Why specifically this one?</summary><br><b>
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</b></details>
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<details>
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<summary>What is Object Oriented Programming? Why is it important?</summary><br><b>
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</b></details>
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<details>
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<summary>Explain recursion</summary<br><b>
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</b></details>
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<details>
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<summary>Explain what are design patterns and describe three of them in detail</summary><br><b>
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</b></details>
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<details>
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<summary>Explain big O notation</summary><br><b>
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</b></details>
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##### Strings
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<details>
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<summary>In any language you want, write a function to determine if a given string is a palindrome</summary><br><b>
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</b></details>
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<a name="coding-advanced"></a>
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#### :star: Advanced
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<details>
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<summary>Name 3 design patterns. Do you know how to implement (= provide an example) these design pattern in any language you'll choose?</summary><br><b>
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</b></details>
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## Python
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<a name="python-beginner"></a>
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@ -1959,11 +1982,6 @@ def reverse_string(string):
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```
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</b></details>
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<details>
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<summary>Write a function to determine if a given string is a palindrome</summary><br><b>
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</b></details>
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<details>
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<summary>How to sort a dictionary by values?</summary><br><b>
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</b></details>
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@ -2314,6 +2332,11 @@ If you want to get "101" you should use the package "strconv" and replace <code>
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<details>
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<summary>What is the difference between SQL and NoSQL?</summary><br><b>
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The main difference is that SQL databases are structured (data is stored in the form of
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tables with rows and columns - like an excel spreadsheet table) while NoSQL is
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unstructured, and the data storage can vary depending on how the NoSQL DB is set up, such
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as key-value pair, document-oriented, etc.
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</b></details>
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<details>
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@ -2321,6 +2344,7 @@ If you want to get "101" you should use the package "strconv" and replace <code>
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* Heterogeneous data which changes often
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* Data consistency and integrity is not top priority
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* Best if the database needs to scale rapidly
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</b></details>
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<details>
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@ -2643,7 +2667,7 @@ Inner JOIN cat_food f <br>
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ON c.Customer_ID = f.Customer_ID <br>
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where c.Customer_ID in (Select Customer_ID from cat_food);
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Although this was a simple statement, the "with" clause really shines is when
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Although this was a simple statement, the "with" clause really shines when
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a complex query needs to be run on a table before joining to another. With statements are nice,
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because you create a pseudo temp when running your query, instead of creating a whole new table.
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