diff --git a/README.md b/README.md
index 4a9ebec..fce5d3b 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
:information_source: This repository contains interview questions on various DevOps related topics
-:bar_chart: There are currently **382** questions
+:bar_chart: There are currently **399** questions
:warning: You don't need to know how to answer all the questions in this repo. DevOps is not about knowing all :)
@@ -34,7 +34,7 @@
Go
Beginner :baby:
|
Shell Scripting
Beginner :baby:
Advanced :star: |
Kubernetes
Beginner :baby:
|
- 
Prometheus
Beginner :baby:
|
+
Prometheus
Beginner :baby:
Advanced :star: |
Mongo
Beginner :baby:
|
SQL
Beginner :baby:
Advanced :star: |
OpenShift
Beginner :baby:
|
@@ -1835,7 +1835,7 @@ Generally, every compiling process have a two steps.
Write a program which will revert a string (e.g. pizza -> azzip)
```
-Shortest way is str[::-1] but not the most efficient.
+Shortest way is str[::-1] but not the most efficient.
"Classic" way:
@@ -1850,6 +1850,10 @@ for char in 'pizza':
+
+Write a function to return the sum of one or more numbers. The user will decide how many numbers to use.
+
+
How to merge two sorted lists into one sorted list?
@@ -1877,13 +1881,28 @@ for char in 'pizza':
with open('file.txt', 'w') as file:
file.write("My insightful comment")
```
-
How to reverse a file?
+#### Regex
+
+
+How do you perform regular expressions related operations in Python? (match patterns, substitute strings, etc.)
+
+Using the re module
+
+
+
+How to substitute the string "green" with "blue"?
+
+
+
+How to find all the IP addresses in a variable? How to find them in a file?
+
+
Sort a list of lists by the second item of each nested list
@@ -1894,6 +1913,10 @@ sorted(x, key=lambda l: l[1])
```
+
+Can you write a function which will print all the file in a given directory? including sub-directories
+
+
You have the following list: [{'name': 'Mario', 'food': ['mushrooms', 'goombas']}, {'name': 'Luigi', 'food': ['mushrooms', 'turtles']}]
Extract all type of foods. Final output should be: {'mushrooms', 'goombas', 'turtles'}
@@ -1953,6 +1976,10 @@ def reverse_string(string):
Explain data serialization and how do you perform it with Python
+
+How do you handle argument parsing in Python?
+
+
Explain what is GIL
@@ -1973,6 +2000,10 @@ def reverse_string(string):
How to reverse a list?
+
+What empty return returns?
+
+
##### Time Complexity
@@ -2038,6 +2069,21 @@ def reverse_string(string):
## Prometheus
+
+#### :baby: Beginner
+
+
+What is Prometheus? What its benefits?
+
+
+
+Describe Prometheus architecture
+
+
+
+Can you compare Prometheus to other solutions like Zabbix for example?
+
+
Describe the following Prometheus components:
@@ -2050,10 +2096,33 @@ Push gateway is used for short-lived jobs
Alert manager is responsible for alerts ;)
+
+What core metrics types Prometheus supports?
+
+
What is an exporter? What is it used for?
+
+How to get total requests in a given period of time?
+
+
+
+#### :star: Advanced
+
+
+How do you join two metrics?
+
+
+
+How to write a query that returns the value of a label?
+
+
+
+How do you convert cpu_user_seconds to cpu usage in percentage?
+
+
## Git
@@ -2136,6 +2205,15 @@ This page explains it the best: https://git-scm.com/docs/merge-strategies
git diff
+
+How do you revert a specific file to previous commit?
+
+```
+git checkout HEAD~1 -- /path/of/the/file
+```
+
+
+
#### :star: Advanced
@@ -2177,6 +2255,12 @@ The result is the same, a variable with the value 2.
with var x int = 2 we are setting the variable type to integer while with x := 2 we are letting Go figure out by itself the type.
+
+True or False? In Go we can redeclare variables and once declared we must use it.
+
+False. We can't redeclare variables but yes, we must used declared variables.
+
+
What libraries of Go have you used?