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NodeJS Basics
1/25
What is Node.js primarily used for?
Front-end development
Back-end development
Graphic design
Next >
2/25
Which of the following allows you to run Node.js applications in a cluster to improve performance?
Node Cluster Module
Node Performance Worker
Node Load Balancer
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3/25
Which of the following is NOT a valid stream in Node.js?
ReadStream
WriteStream
QuickStream
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4/25
Which of the following methods can be used to prevent a program from exiting immediately in Node.js?
process.exit()
process.stayAlive()
setInterval()
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5/25
What is the purpose of the .env file in Node.js applications?
To set environment variables
To configure the Node.js runtime environment
To store encrypted variables
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6/25
Which Node.js module is used to work with file paths?
fs
path
file
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7/25
How can you capture command line arguments in a Node.js application?
Using process.argv
Using console.args
Using process.arguments
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8/25
In Node.js, which method is used to spawn a child process?
process.spawn()
child_process.spawn()
system.spawnProcess()
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9/25
Which file extension is commonly used for Node.js modules?
.node
.js
.npm
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10/25
In Node.js, how can you listen for and respond to uncaught exceptions?
process.on('uncaughtException', function(err) {});
try...catch on the global level
window.onerror for Node.js applications
Next >
11/25
Which of the following is a benefit of using TypeScript with Node.js?
Automatic error correction in runtime
Static typing and compile-time error checking
Increased runtime performance
Direct access to Node.js API without imports
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12/25
Which command is used to create a new Node.js project?
npm new project
npm init
node start
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13/25
What is the primary use of the Node.js 'events' module?
Logging events to a file
Creating and handling custom events
Scheduling events for future execution
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14/25
In Node.js, what is a middleware in the context of Express applications?
A database management system
Functions that have access to the request object, the response object, and the next middleware function
A client-side JavaScript library
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15/25
What is the output of 'console.log(1 + '2' + 3)' in Node.js?
'123'
6
'15'
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16/25
In Node.js, what does the 'path.join()' method do?
Joins all given path segments together
Joins two arrays into one
Concatenates two strings
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17/25
How do you send a status code of 404 with a message in Express?
res.status(404).send('Not Found')
res.send(404, 'Not Found')
res.sendStatus('404 Not Found')
Next >
18/25
Which function is used to read data from a readable stream in Node.js?
stream.read()
stream.getData()
stream.fetch()
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19/25
What is the command to list installed packages in a Node.js project?
npm list
npm installed
node list-packages
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20/25
Which of the following is true for process.nextTick() in Node.js?
It is used to defer the execution of a function until the next loop iteration
It schedules a function to execute at the beginning of the next event loop
It is the same as setting a timeout with zero milliseconds
Next >
21/25
What is the purpose of the Node.js 'cluster' module?
To distribute incoming network connections across multiple worker processes
To manage multiple database clusters
To enable real-time communication between clients and servers
Next >
22/25
In Node.js, which is the correct way to import a module stored in a file named 'example.js'?
var example = require('./example.js')
import example from './example.js'
include './example.js'
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23/25
Which Node.js method is used to execute a function after a specified number of milliseconds?
setTimeout()
nextTick()
setInterval()
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24/25
What is the difference between 'exports' and 'module.exports' in Node.js?
'exports' is a shorthand for 'module.exports'
'exports' can export multiple objects, functions, or values
'module.exports' can only export a single object, function, or value
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25/25
Which method is an effective way to handle rejected promises in async/await syntax in Node.js?
Using a try/catch block
Using the .catch() method on each promise
Using process.on('unhandledRejection', handler)
Next >
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