GWT Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to GWT. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - Which of the following is correct about module descriptors in GWT application?

A - A module descriptor is the configuration file in the form of XML which is used to configure a GWT application.

B - A module descriptor file extension is *.gwt.xml.

C - * in *.gwt.xml is the name of the application and this file should reside in the project's root.

D - All of the above.

Answer : D

Explaination

All of the above options are correct.

Q 2 - What is the purpose of 'stylesheet' tag in *.gwt.xml file in GWT?

A - This specifies the names of source folders which GWT compiler will search for source compilation.

B - This specifies the place in your project where static resources referenced by your GWT module, such as CSS or images, are stored.

C - This automatically injects the external JavaScript file located at the location specified by src.

D - This automatically injects the external CSS file located at the location specified by src.

Answer : D

Explaination

'stylesheet' tag in *.gwt.xml file automatically injects the external CSS file located at the location specified by src.

Q 3 - Which of the following is true about bootstrap procedure of a GWT Application?

A - Browser loads the host html page and .nocache.js file.

B - .nocache.js code resolves deferred binding configuarations (for example, browser detection) and use lookup table generated by GWT compiler to locate one of the .cache.html.

C - .nocache.js code then creates a html hidden iframe, inserts that iframe into the host page's DOM, and loads the .cache.html file into the same iframe.

D - All of the above.

Answer : D

Explaination

All of the above options are correct.

Q 4 - Which of the following is correct about UIObject class of GWT?

A - UIObject simply wraps a DOM element, and cannot receive events.

B - It provides direct child classes like Widget, MenuItem, MenuItemSeparator, TreeItem.

C - All UIObject objects can be styled using CSS.

D - All of the above.

Answer : D

Explaination

All of the above options are correct.

Q 5 - Which of the following gwt widget acts as a suggestion box?

Answer : C

Explaination

SuggestBox widget acts as a suggestion box. SuggestBox widget represents a text box or text area which displays a pre-configured set of selections that match the user's input. Each SuggestBox is associated with a single SuggestOracle. The SuggestOracle is used to provide a set of selections given a specific query string.

Q 6 - Which of the following gwt widget represents a multiline text box?

Answer : A

Explaination

TextArea widget represents a multiline text box.

Q 7 - Which of the following panel arranges two widgets in a single horizontal row and allows the user to interactively change the proportion of the width dedicated to each of the two widgets?

A - HorizontalSplitPanel

B - VerticalSplitPanel

C - HorizontalPanel

D - VerticalPanel

Answer : A

Explaination

HorizontalSplitPanel widget represents a panel that arranges two widgets in a single horizontal row and allows the user to interactively change the proportion of the width dedicated to each of the two widgets. Widgets contained within a HorizontalSplitPanel will be automatically decorated with scrollbars when necessary.

Q 8 - Which of the following widget is the base class for panels that contain only one widget?

Answer : B

Explaination

SimplePanel is the base class for panels that contain only one widget.

Q 9 - Which of the following is the way using which you can internationalize a GWT application?

A - Static String Internationalization

B - Dynamic String Internationalization

C - Localizable Interface

D - All of the above.

Answer : D

Explaination

All of the above options are correct.

Q 10 - GWT client and server both serialize and deserialize data automatically so developers are not required to serialize/deserialize objects and data objects can travel over HTTP.

A - true

B - false

Answer : A

Explaination

GWT client and server both serialize and deserialize data automatically so developers are not required to serialize/deserialize objects and data objects can travel over HTTP.

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