diff --git a/README.md b/README.md
index 93fe0cb..cc84d18 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
:information_source: This repository contains questions on various DevOps and SRE related topics
-:bar_chart: There are currently **640** questions
+:bar_chart: There are currently **650** questions
:books: To learn more about DevOps check the resources in [DevOpsBit.com](https://devopsbit.com)
@@ -207,6 +207,20 @@ Stateful applications depend on the storage to save state and data, typically da
Describe me the architecture of service/app/project/... you designed and/or implemented
+
+What types of tests are you familiar with?
+
+Styling, unit, functional, API, integration, smoke, scenario, ...
+
+You should be able to explain those that you mention.
+
+
+
+You need to install periodically the same package on different operating systems (Ubuntu, RHEL, ...). How would you do it?
+
+It can be as simple as one Ansible (or other CM tool) task that runs periodically with Cron. In more advanced cases, perhaps a CI system.
+
+
##### SRE
@@ -1071,6 +1085,14 @@ Hardware -> Kernel -> Daemons, System Libraries, Server Display.
What is a Linux kernel module and how do you load a new module?
+
+Explain user space and kernel space
+
+
+
+Wildcards are implemented on user or kernel space?
+
+
What is KVM?
@@ -1383,7 +1405,7 @@ This is a great article on the topic: https://www.computerhope.com/jargon/f/file
Explain Kernel OOM
-##### Security
+##### Linux Security
What is chroot? In what scenarios would you consider using it?
@@ -1561,6 +1583,14 @@ Re-install the OS IS NOT the right answer :)
What is sudo? How do you set it up?
+##### Random and Strange :)
+
+
+Give 5 commands which are two letters long
+
+ls, wc, dd, df, du, ps, ip, ...
+
+
#### :star: Advanced
@@ -1584,6 +1614,14 @@ read(5, "file content")
These system calls are reading the file /my/file and 5 is the file descriptor number.
+
+What system call is used for listing files?
+
+
+
+What system call is used for creating a new process?
+
+
What is the difference between a process and a thread?
@@ -3710,6 +3748,12 @@ Using the keyword read so for example read x will wait
Write a script which will list the differences between two directories
+##### Practical
+
+
+Write a script to determine whether a host is up or down
+
+
#### Advanced
@@ -4152,9 +4196,16 @@ the pseudo table to retrieve the sum of the prices spent by each customer, then
What is DNS Spoofing? How to prevent it?
+
+What can you tell me about Stuxnet?
+
+
+
+What can you tell me about Spectre?
+
+
Explain OAuth
-