Introduction
Top 10 M.C.Q:- Questions and Answers for improving and understanding Node JS Programming Language. Learn and Understand Node JS Programming Language like Pro.
1. Question: What is Node.js primarily used for?
A. Front-end web development
B. Building mobile applications
C. Server-side scripting
D. Database management
Correct Answer: C
2. Question: Which JavaScript engine is used by Node.js?
A. V8
B. SpiderMonkey
C. Rhino
D. Chakra
Correct Answer: A
3. Question: What is the Node.js package manager called?
A. npm
B. njs
C. nodepm
D. nmp
Correct Answer: A
4. Question: In Node.js, which module is commonly used for handling file operations?
A. fs
B. file-io
C. io
D. file-system
Correct Answer: A
5. Question: What is the purpose of the Node.js "require" function?
A. To export a module
B. To include external libraries or modules
C. To declare a variable
D. To create a new function
Correct Answer: B
6. Question: Which event-driven architecture is used in Node.js?
A. Multithreading
B. Asynchronous
C. Synchronous
D. Sequential
Correct Answer: B
7. Question: What is a "callback" function in the context of Node.js?
A. A function that adds numbers together
B. A function that executes another function when an operation is completed
C. A function that logs messages to the console
D. A function that handles user input
Correct Answer: B
8. Question: In Node.js, which module is used for creating web servers?
A. http
B. web-server
C. server.js
D. net
Correct Answer: A
9. Question: Which tool can be used for debugging Node.js applications?
A. Node Debugger
B. Node Analyze
C. Node Inspector
D. Node Profiler
Correct Answer: C
10. Question: What is the Node.js event loop?
css**A. A loop for iterating through arrays**Â Â **B. A mechanism for handling asynchronous operations**Â Â **C. A loop for displaying messages to the user**Â Â **D. A loop for parsing JSON data**Â Â **Correct Answer: B**
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