Socket.io Rooms
Interactive Video
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Information Technology (IT), Architecture
•
University
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using the QS library in the chat application?
To render HTML templates
To manage socket connections
To parse query strings into objects
To format dates and times
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the client send the username and room data to the server?
Through a WebSocket connection
Using a POST request
By storing it in local storage
By emitting a 'join' event with socket.io
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the 'join' event in the chat application?
To add a user to a specific room
To log user activity
To send a message to all users
To disconnect a user
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method is used to join a specific chat room on the server?
io.listen
socket.join
io.connect
socket.emit
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method allows sending messages to all clients in a specific room?
socket.broadcast.emit
io.to(room).emit
socket.emit
io.emit
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the expected behavior when a new user joins a chat room?
The user receives a welcome message
All users in all rooms are notified
Only users in the same room are notified
The server logs the event
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What issue arises when sending messages from one room to another?
Messages are delayed
Messages are encrypted
Messages are sent to all rooms
Messages are not delivered
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