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 GWT?

A - GWT is extensible and custom widget can be created to cater to application needs.

B - GWT applications can run on all major browsers and smart phones including Android and iOS based phones/tablets.

C - Both of the above

D - None of the above.

Answer : C

Explaination

Both 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 class is the superclass of all user-interface classes?

A - UIObject

B - Widget

C - Panel

D - None of the above.

Answer : A

Explaination

The class UIObject is the superclass for all user-interface objects.

Q 5 - Which of the following gwt widget displays an image at a given URL?

Answer : C

Explaination

Image widget displays an image at a given URL.

Q 6 - Which GWT widget represents a single column list of cells?

Answer : D

Explaination

CellList widget represents a single column list of cells.

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

A - HorizontalSplitPanel

B - VerticalSplitPanel

C - HorizontalPanel

D - VerticalPanel

Answer : B

Explaination

VerticalSplitPanel widget represents a A panel that arranges two widgets in a single vertical column and allows the user to interactively change the proportion of the height dedicated to each of the two widgets. Widgets contained within a VertialSplitPanel will be automatically decorated with scrollbars when necessary.

Q 8 - Which of the following panel represents a panel that represents a tabbed set of pages, each of which contains another widget?

Answer : D

Explaination

TabPanel widget represents a panel that represents a tabbed set of pages, each of which contains another widget. Its child widgets are shown as the user selects the various tabs associated with them. The tabs can contain arbitrary HTML.

Q 9 - Which of the following is correct about GWT UiBinder?

A - The UiBinder is a framework designed to separate Functionality and View of User Interface.

B - The UiBinder framework allows developers to build gwt applications as HTML pages with GWT widgets configured throughout them.

C - The UiBinder framework makes easier collaboration with UI designers who are more comfortable with XML, HTML and CSS than Java source code.

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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