feat: added nodejs module on the topics and shared some basic questio…

…n asked in interview (#10267)

* feat: added nodejs module on the topics and shared some basic question asked in interview

* fix: added image and link in the readme file

README.md

@@ -94,6 +94,7 @@
     <td align="center"><a href="#Misc"><img src="images/general.png" width="75px;" height="75px;" alt="Misc"/><br /><b>Misc</b></a></td>
     <td align="center"><a href="#elastic"><img src="images/elastic.png" width="75px;" height="75px;" alt="Elastic"/><br /><b>Elastic</b></a></td>
     <td align="center"><a href="topics/kafka/README.md"><img src="images/logos/kafka.png" width="85px;" height="80px;" alt="Kafka"/><br /><b>Kafka</b></a></td>
+    <td align="center"><a href="topics/node/node_questions_basic.md"><img src="images/nodejs.png" width="85px;" height="80px;" alt="NodeJs"/><br /><b>NodeJs</b></a></td>
    </tr>
 
 </table>

topics/node/node_questions_basic.md

@@ -0,0 +1,20 @@
+# NODEJS BASIC INTERVIEW QUESTIONS
+
+# OBJECTIVE
+
+To Tell about the basic questions asked in node to me in many interviews
+
+1. What is Nodejs ?
+2. How many threads does nodejs have ?
+3. How do nodejs work ?
+4. Is nodejs Single Threaded Or Multi Threaded ?
+5. what is node cluster ?
+6. Does parent process depends on the child preocess ?
+7. How many types of module do nodejs have ?
+8. Why nodejs ?
+9. What is npm ?
+10. Difference between pacakage.json and pacakage-lock.json ?
+11. What is the difference betwwen creating a server with http and a framework ?
+12. What do you mean by non-blocking ?
+13. What is event loop ?
+14. What is event driven ?

topics/node/solutions/node_questions_basic_ans.md

@@ -0,0 +1,16 @@
+# ANSWERS 
+
+1. Node.js is an open-source, cross-platform JavaScript runtime environment that allows developers to build server-side and networking applications.
+2. Nodejs is a single threaded langauage . It handles one operation at a time.
+3. Node.js works by executing JavaScript code in a runtime environment outside of a web browser. 
+4. Node.js works by executing JavaScript code in a runtime environment outside of a web browser. mainly used for performance and scalabilty od the project
+5. Parent process manages the child process but not depend on the clid process to run parralel
+6. Three Modules mainly 
+    1. Core Module - fs , require
+    2. Local modules - like function created by us and exported or imported from one file to another
+    3. Third Party module - like npm pacakages whcih we install to do a specific kind of work
+7. NPM (Node Pacakage Manager) used for installing, managing, and sharing JavaScript packages and dependencies.
+8. Difference between pacakage.json and pacakage-lock.json
+   1.pacakage.json - contains the metadata and the dependendies of a project
+   2.pacakage-lock.json - lock the version of the installed dependencies   
+