AJAX QUIZ DESCRIPTION

Write a jQuery statement to remove all child elements only from the element having id "notif"?

  • $("notif").empty();
     

  •  $("#notif").empty();
     

  •  $(".notif").empty();
     

  • $("<notif>").empty();
     

............. is a widely used and effective machine learning algorithm based on the idea of bagging.

  •   Regression
     

  •   Classification
     

  •   Decision Tree
     

  •   Random Forest

What does the XMLHttpRequest object accomplish in Ajax?

  • It’s the programming language used to develop Ajax applications.
     

  • It provides a means of exchanging structured data between the Web server and client.
     

  • It provides the ability to asynchronously exchange data between Web browsers and a Web 
    server.
     

  • It provides the ability to mark up and style the display of Web-page text.

Which jQuery DOM method is used to get the attribute value?

  •  attr()
     

  • attribute()
     

  • attrib()
     

  • val()

Which are the jQuery methods for traversing down the DOM tree?

  • children()
     

  • find()
     

  • childrens()
     

  •  Both A. and B.

Which is the correct jQuery statement to set background color and text
decoration to all <p> elements?

  • $("p").css({"background-color": "#f1f1f1"; "text-decoration": "underline"});

     

  •  $("#p").css({"background-color": "#f1f1f1"; "text-decoration": "underline"});
     

  •  $("p").css({"background-color": "#f1f1f1", "text-decoration": "underline"});

     

  • $("#p").css({"background-color": "#f1f1f1", "text-decoration": "underline"});
     

Which jQuery DOM method is used to insert content at the beginning of the
selected elements?

  • insert()
     

  • before()
     

  • append()
     

  • prepend()

What is the official name of JavaScript?

  • NetscapeScript
     

  • XMLScript
     

  •  ECMAScript
     

  • WebScript

_____ JavaScript statements embedded in an HTML page can respond to user events such as mouse-clicks, form input, and page navigation.

  • Client-side
     

  • Server-side
     

  • Local
     

  • Native

Choose the server-side JavaScript object?

  • FileUpLoad
     

  • Function
     

  • File
     

  • Date

Which are the jQuery methods for traversing up the DOM tree?

  • parent()
     

  • parents()
     

  • parentsUntil()
     

  • All of the above

Machine Learning is a field of AI consisting of learning algorithms that ..............
 

  • At executing some task
     

  •   Over time with experience
     

  •    Improve their performance
     

  •   All of the above

Assuming that “xmlhttp” is a user-defined variable that carrys the Ajax requesting object, xmlhttp.status can carry a value of 0 after a successful request.

  • True

  • False

Write a jQuery statement to remove all <p> elements with class="prog"?

  • $(".prog").remove();
     

  •  $("p").empty(".prog");
     

  • $("p").remove(".prog");
     

  •  $("p.prog").remove();

Can we add more than one CSS classes to the selected elements using the addClass() method?

  • Yes

  • No

Which is the correct jQuery statement to change the color of all <p>
elements which are sibling elements of <pre>?

  • $("#pre").siblings("p").css({"color": "red"});
     

  • $(".pre").siblings("p").css({"color": "red"});
     

  •  $("pre").siblings(".p").css({"color": "red"});
     

  • $("pre").siblings("p").css({"color": "red"});

Which jQuery method is used to get the all next sibling element of the
selected element?

  • siblingAll()
     

  •  nextSiblingAll()
     

  • nextAll()
     

  • siblingsAll()

Which one of these technologies is NOT used in AJAX?

  • CSS
     

  • DOM
     

  •  DHTML
     

  •  Flash

From the provided methods, pick the right one that returns the value of an attribute:

  • attribute[index].text
     

  • attribute()
     

  • getAttribute()
     

  • All of above

Can a call to the “send” method fire an error (assuming the user’s browser supports the XMLHttpRequest Object and the “send” method )?

  • Yes

  • No

Which of following has AJAX is a built-in functionality?

  • .NET Framework 3.5
     

  •  .NET Framework 2.0
     

  •  .NET Framework 3.0
     

  •  .NET Framework 4.0

Is it possible to use multiple ScriptManager controls on a Web page?

  • Yes

  • No

ActiveX can be disabled via browser settings.

  • True

  • False

The XMLHttpRequest object is used to exchange data with a server.True or False?

  • True

  • False

Which jQuery method is used to get descendant elements of the selected element, all the way down to the last descendant?

  • children()
     

  •  find()
     

  • childrens()
     

  • Both A. and B.

If you want to create a secure application you should not use AJAX.

  • Yes

  • No

Ajax is a programming language.

  • True

  • False

Which is the correct syntax to insert content after the <div> elements?

  •  $("div").after("Text to be added");
     

  • $("div").postpend("Text to be added");
     

  • $("div").addafter("Text to be added");
     

  • $("#div").after("Text to be added");
     

Let suppose there are multiple <h3> elements in an HTML document, which
is the correct jQuery statement to get the first <h3> element?

  • $("h3").first();
     

  •  $("h3").parent();
     

  •  $("h3").firstParent();
     

  • $("h3").top();
     

The XMLHttpRequest object supports a method called “quit”.

  • True

  • False