Socket.io Events Challenge
Interactive Video
•
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 primary purpose of using Socket.IO in the counter application?
To create a static webpage
To store data permanently on the server
To manage user authentication
To enable real-time data transfer between server and clients
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial value of the count in the server setup?
1
100
10
0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 'count updated' event?
To initialize the server
To reset the count
To update the count on the client
To close the connection
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used on the client to listen for events from the server?
socket.on
socket.listen
socket.emit
socket.receive
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the server know which client to send the count to initially?
It uses a random selection
It sends to the last connected client
It uses socket.emit for the specific connection
It sends to all clients
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the callback function in socket.on?
To handle the event when it occurs
To close the connection
To reset the count
To initialize the server
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What action does the client perform to send data back to the server?
Clicking a button
Closing the browser
Typing in a text box
Refreshing the page
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