os module for system information in Node.js - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the os module in Node.js.

Node.js

const os = require([1]);

Drag options to blanks, or click blank then click option'

A'fs'

B'http'

C'os'

D'path'

Attempts:

3 left

💡 Hint

Common Mistakes

Using other module names like 'fs' or 'http' instead of 'os'.

Forgetting to put quotes around the module name.

The os module is imported using require('os') in Node.js.

2fill in blank

medium

Complete the code to get the system's hostname using the os module.

Node.js

const hostname = os.[1]();

Drag options to blanks, or click blank then click option'

Ahostname

Bplatform

Ctype

Darch

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.platform() which returns the OS platform, not hostname.

Using os.type() which returns the OS name.

The os.hostname() method returns the system's hostname.

3fill in blank

hard

Fix the error in the code to get the total system memory.

Node.js

const totalMem = os.[1]();

Drag options to blanks, or click blank then click option'

Atotalmem

Bmemory

Cfreemem

DgetTotalMem

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.freemem() which returns free memory, not total.

Using non-existent methods like os.memory() or os.getTotalMem().

The correct method to get total system memory is os.totalmem().

4fill in blank

hard

Fill both blanks to create an object with OS type and CPU architecture.

Node.js

const systemInfo = { type: os.[1](), arch: os.[2]() };

Drag options to blanks, or click blank then click option'

Atype

Bplatform

Carch

Dhostname

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up os.platform() with os.type().

Using os.hostname() instead of os.arch() for CPU info.

os.type() returns the OS type and os.arch() returns the CPU architecture.

5fill in blank

hard

Fill all three blanks to create a summary string with platform, uptime, and user info.

Node.js

const summary = `Platform: ${os.[1]()}, Uptime: ${os.[2]()} seconds, User: ${os.userInfo().[3]`;

Drag options to blanks, or click blank then click option'

Aplatform

Buptime

Cusername

Dhostname

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.type() instead of os.platform() for platform.

Using os.userInfo().name instead of username property.

Confusing uptime with freemem or totalmem.

os.platform() gives the platform, os.uptime() gives system uptime in seconds, and os.userInfo().username gives the current user's name.