Explore topic-wise MCQs in Javascript.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.

1.

HOW_CAN_WE_CHECK_THE_SUBPROTOCOL_BEING_USED_BY_THE_CLIENT??$

A. subprotocol property
B. protocol property
C. clientprotocol property
D. none of the mentioned
Answer» D. none of the mentioned
2.

How will you transmit data using the connection?$

A. send(data)
B. Socket.send(“data”)
C. Socket.send(data)
D. Socket(data)
Answer» E.
3.

Which of the following are not a socket property?

A. onopen
B. readyState
C. onmessage
D. ready
Answer» E.
4.

How does the client and the server communicate following the rules defined by the WebSocket protocol?

A. Long-lived TCP Socket
B. Short-lived TCP Socket
C. UDP Socket
D. HTTP Socket
Answer» B. Short-lived TCP Socket
5.

Which method is used to close the WebSocket?

A. Socket.flush()
B. Socket.close()
C. Socket.Close()
D. Socket.dispose()
Answer» C. Socket.Close()
6.

How many WebSocket events are available?

A. 2
B. 3
C. 4
D. 5
Answer» D. 5
7.

What does the value 2 of the WebSocket attribute Socket.readyState indicate?

A. Closed connection
B. Handshake connection
C. Unestablished connection
D. Established connection and communication is possible
Answer» C. Unestablished connection
8.

Which of the following is a stateless protocol?

A. HTML
B. XHTML
C. HTTP
D. All of the mentioned
Answer» D. All of the mentioned