Document Object Model And Event Handling - Study Mode

[#71] Which of the following uses scripted HTTP?
Correct Answer

(C) Ajax

Explanation

Solution: The key feature of an Ajax application is that it uses scripted HTTP to initiate data exchange with a web server without causing pages to reload.

[#72] Which of the below is a lieral reverse of Ajax?
Correct Answer

(D) Comet

Explanation

Solution: Comet is the reverse of Ajax: in Comet, it is the web server that initiates the communication, asynchronously sending messages to the client.

[#73] The other name for Comet is
Correct Answer

(D) All of the mentioned

Explanation

Solution: Other names for Comet include “Server Push”, “Ajax Push”, “HTTP Streaming”.

[#74] Which is the element that has a src property to initiate HTTP GET request?
Correct Answer

(D) both img and script

Explanation

Solution: Both img and script contains the src property thatt can be set to initiate an HTTP GET request.

[#75] XMLHttpRequesr is a
Correct Answer

(C) Both Object and Class

Explanation

Solution: XMLHttpRequest is both an object and a class.