Top 50+ Advanced Ajax Interview Questions & Answers Pdf 2020-21 - 2

Question: 6

List the different states of XMLHttpRequest with their description?

The different states of the XMLHttpRequest object are as follows:

Uninitialized- Refers to the state when the object has not been initialized

Open – Refers to the state when the object has been created; however, the send function has not been invoked

Sent – Refers to the state when the send function is invoked; however, the status and headers are not available

Receiving – refers to the state when the process is receiving data

Loaded – Refers to the state when the procedure is completed and the entire data is available

Question: 7

What does the MinimumPrefixLength property of the Auto Complete Extender control do?

The MinimumPrefixLength property sets the minimum number of characters that must be entered before getting suggestions from the Web service.

Question: 8

Describe the situations in which AJAX should not be used?

You should not use AJAX if:

You want the page to show in a search engine, such as Google, because WebCrawler does not execute JavaScript code

The browser does not support JavaScript

You want to create a secure application

Question: 9

What is the work of the ConformOnFormSubmit property in the ConfirmButtonExtender control?

The ConformOnFormSubmit property determines whether or not the confirm dialog box should wait when the form is submitted for display.

Question: 10

Is it possible to use multiple Script Manager Controls on a Web page?

No, it is not possible.