Add a couple of questions and answers
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README.md
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README.md
@ -6,7 +6,7 @@
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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 **124** interview questions
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:bar_chart: There are currently **133** interview questions
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:warning: Some answers might be only partial and shouldn't be used as they are in interviews
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@ -35,6 +35,7 @@
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<td align="center"><a href="#prometheus"><img src="images/prometheus.png" width="75px;" height="75px;" alt="Prometheus"/><br /><b>Prometheus</b></a><br /><sub><a href="#prometheus-beginner">Beginner :baby:</a></sub><br></td>
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<td align="center"><a href="#git"><img src="images/git.png" width="75px;" height="75px;" alt="Git"/><br /><b>Git</b></a><br /><sub><a href="#git-beginner">Beginner :baby:</a></sub><br><sub><a href="#git-advanced">Advanced :star:</a></sub></td>
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<td align="center"><a href="#go"><img src="images/go.png" width="75px;" height="75px;" alt="Go"/><br /><b>Go</b></a><br /><sub><a href="#go-beginner">Beginner :baby:</a></sub><br><sub></td>
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<td align="center"><a href="#mongo"><img src="images/mongo.png" width="75px;" height="75px;" alt="Mongo"/><br /><b>Mongo</b></a><br /><sub><a href="#mongo-beginner">Beginner :baby:</a></sub><br><sub></td>
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</tr>
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</table>
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</center>
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@ -147,6 +148,14 @@ to a server will result in a new server instead of updating it. Terraform is an
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which follows the mutable infrastructure paradigm.
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</b></details>
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<details>
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<summary>What ways are you familiar with to deliver a software?</summary><br><b>
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* Archive - collect all your app files into one archive (e.g. tar) and deliver it to the user.
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* Package - depends on the OS, you can use your OS package format (e.g. in RHEL/Fefodra it's RPM) to deliver your software with a way to install, uninstall and update it using the standard packager commands
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* Images - Either VM or container images where your package is included with everything it needs in order to run successfully.
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</b></details>
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<a name="devops-advanced"></a>
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#### :star: Advanced
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@ -505,6 +514,18 @@ For each file (and directory) in Linux there is an inode, a data structure which
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related to the file like its size, owner, permissions, etc.
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</b></details>
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<details>
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<summary>DNS: What is A record?</summary><br><b>
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</b></details>
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<details>
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<summary>DNS: What is MX record?</summary><br><b>
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</b></details>
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<details>
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<summary>DNS: </summary><br><b>
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</b></details>
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<a name="linux-advanced"></a>
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#### :star: Advanced
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@ -992,6 +1013,12 @@ is currently pointing at.
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</p>
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</b></details>
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details>
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<summary>You would like to move forth commit to the top. How would you achieve that?</summary><br><b>
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Using <code>git rebase></code> command
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</b></summary>
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<details>
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<summary>In what situations are you using <code>git rebase</code>?</summary><br><b>
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</b></details>
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@ -1036,12 +1063,20 @@ This is a great article about Octopus merge: http://www.freblogg.com/2016/12/git
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* Fast compile times
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* Built-in concurrency
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* Garbage collected
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* Platform independant
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* Platform independent
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* Compile to standalone binary - anything you need to run your app will be compiled into one binary. Very useful for version management in run-time.
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Go also has good community.
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</b></details>
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<details>
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<summary>What is the difference between <code>var x int = 2</code> and <code>x := 2</code>?</summary><br><b>
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The result is the same, a variable with the variable 2.
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with <code>var x int = 2</code> we are setting the variable type to integer while with <code>x := 2</code> we are letting Go figure out by itself the type.
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</b></details>
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<details>
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<summary>What libraries of Go have you used?</summary><br><b>
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@ -1056,9 +1091,7 @@ This should be answered based on your usage but some examples are:
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```
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package main
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import {
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"fmt"
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}
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import "fmt"
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func main() {
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fmt.Println("Hello World")
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@ -1066,6 +1099,20 @@ func main() {
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```
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</b></details>
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## Mongo
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<a name="mongo-beginner"></a>
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#### :baby: Beginner
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<details>
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<summary>What is a document? What is a collection?</summary><br><b>
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</b></details>
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<details>
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<summary>What is an aggregator?</summary><br><b>
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</b></details>
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## Scenarios
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Scenarios are questions which combine several subjects together. Some scenarios will
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images/mongo.png
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