Liferay Development Best Practises Quiz

Question 1 of 16

1

What are the standards-based technologies supported by Liferay for incorporating your own applications into a Liferay portal?

Select one or more of the following:

Portlets
IFrame
OpenSocial gadgets
Web widget
Web Parts

Explanation

Question 2 of 16

1

Choose all the right definitions for Portlets.

Select one or more of the following:

Portlets are web components based in Java technology.
Portlet Specification 2.0 is defined in JSR-168.
A portlet is an application that provides a specific piece of content (information or
service) to be included as part of a portal page.
The lifecycle of a portlet is managed by the servlet container.
Web clients interact with portlets via a request/response paradigm implemented by the
portal.
The content generated by a portlet may vary from one user to another depending on the
user configuration for the portlet.

Explanation

Question 3 of 16

1

Since they’re entirely self-contained, portlets are the least invasive mechanism for extending Liferay

Select one of the following:

True
False

Explanation

Question 4 of 16

1

Portlets are not the most forward compatible Liferay development option.

Select one of the following:

True
False

Explanation

Question 5 of 16

1

Choose which options are not correct about Liferay Portlets.

Select one or more of the following:

Portlets are hot-deployed as plugins into Liferay instances.
The hot-deploy mechanism results in a low downtime for Liferay Portal servers.
A single Liferay Portlet Plugin can contain multiple portlets.
Liferay Portlets can not be used to build complex applications.
Liferay Portlets can leverage the full suite of technologies and libraries for the Java platform.

Explanation

Question 6 of 16

1

Choose the possible options to reuse existing web applications in Liferay Portal

Select one or more of the following:

Create simple portlets that interact with the application (possibly using Web Services).
If the application is implemented using JSF, it can be converted to a portlet application.
Create a portlet that integrates the remote application either using an IFrame or an HTTP proxy (e.g., using Liferay’s WebProxy portlet).
Rewrite the application as a portlet.

Explanation

Question 7 of 16

1

Thanks to the portlet and Java EE specifications, each portlet application can use its own set of libraries and technologies, whether they are used by Liferay or not.

Select one of the following:

True
False

Explanation

Question 8 of 16

1

Ext plugins can use libraries that are not compatible with the ones used by the core Liferay code.

Select one of the following:

True
False

Explanation

Question 9 of 16

1

Select the best options to choose a development framework from the large set available.

Select one or more of the following:

Use a framework that the development team knows.
Choose the simpler solution that covers the project real needs.
Choose Liferay's MVC Portlet framework because it's lighter.
Choose JSF framework because it's a standard.

Explanation

Question 10 of 16

1

Liferay has its own JavaScript library called...

Select one of the following:

AlloyUI
YUI
jQuery UI
Dojo
Sencha
Sproutcore

Explanation

Question 11 of 16

1

Any JavaScript library can be used, as long as the library does not conflict with libraries referenced by other portlets deployed in the same portal.

Select one of the following:

True
False

Explanation

Question 12 of 16

1

Choose the right options regarding Liferay’s Service Builder framework.

Select one or more of the following:

Liferay’s Service Builder is a code generation tool
Service Builder automates creating interfaces and classes for database persistence and service layers
Service Builder automates creating user interfaces and workflow
The business logic is implemented in the remote interface
The permission checks are implemented in the local interface
Objects on the portal instance interact with the local interface
Objects outside the portal instance interact with the remote interface via JSON, SOAP, and Java RMI

Explanation

Question 13 of 16

1

Liferay is designed to be customized. Choose the available options for Liferay developers:

Select one of the following:

The platform look and feel can be customized using a Theme Plugin.
You can create custom layout templates to arrange portlets using Layout Templates Plugin.
Liferay Out-of-Box functionality can be customized or extended using a Hook Plugin.
Liferay core functionality can be customized using an Ext Plugin.
All the listed options are valid for Liferay custom developments.

Explanation

Question 14 of 16

1

Multiple plugins and plugin types can be combined into a single WAR file.

Select one of the following:

True
False

Explanation

Question 15 of 16

1

Liferay's Look and Feel can be fully customized with a custom plugin. Choose the following true options:

Select one or more of the following:

A theme plugin can specify color schemes.
A theme plugin allows to define commonly used images and style for fonts, links, navigation elements, page headers and page footers.
To customize the look and feel the developer just have option: use CSS or Velocity templates.
In order to create user interfaces consistent with Liferay built-in functionality the developer must use JQuery UI API framework.

Explanation

Question 16 of 16

1

Layouts specify the arrangement of portlets on a page rather than their look and feel. You can create custom layout templates to arrange portlets just the way you like them.

Select one of the following:

True
False

	Created by hfernandes over 9 years ago

Liferay Portal is a platform based on standards that allows plenty of options to develop Web Portal projects. As a Liferay developer, it's very useful to be aware of the Liferay development best practises and available options.

Liferay Development Best Practises Quiz

Question 1 of 16

What are the standards-based technologies supported by Liferay for incorporating your own applications into a Liferay portal?

Select one or more of the following:

Explanation

Question 2 of 16

Choose all the right definitions for Portlets.

Select one or more of the following:

Explanation

Question 3 of 16

Since they’re entirely self-contained, portlets are the least invasive mechanism for extending Liferay

Select one of the following:

Explanation

Question 4 of 16

Portlets are not the most forward compatible Liferay development option.

Select one of the following:

Explanation

Question 5 of 16

Choose which options are not correct about Liferay Portlets.

Select one or more of the following:

Explanation

Question 6 of 16

Choose the possible options to reuse existing web applications in Liferay Portal

Select one or more of the following:

Explanation

Question 7 of 16

Thanks to the portlet and Java EE specifications, each portlet application can use its own set of libraries and technologies, whether they are used by Liferay or not.

Select one of the following:

Explanation

Question 8 of 16

Ext plugins can use libraries that are not compatible with the ones used by the core Liferay code.

Select one of the following:

Explanation

Question 9 of 16

Select the best options to choose a development framework from the large set available.

Select one or more of the following:

Explanation

Question 10 of 16

Liferay has its own JavaScript library called...

Select one of the following:

Explanation

Question 11 of 16

Any JavaScript library can be used, as long as the library does not conflict with libraries referenced by other portlets deployed in the same portal.

Select one of the following:

Explanation

Question 12 of 16

Choose the right options regarding Liferay’s Service Builder framework.

Select one or more of the following:

Explanation

Question 13 of 16

Liferay is designed to be customized. Choose the available options for Liferay developers:

Select one of the following:

Explanation

Question 14 of 16

Multiple plugins and plugin types can be combined into a single WAR file.

Select one of the following:

Explanation

Question 15 of 16

Liferay's Look and Feel can be fully customized with a custom plugin. Choose the following true options:

Select one or more of the following:

Explanation

Question 16 of 16

Layouts specify the arrangement of portlets on a page rather than their look and feel. You can create custom layout templates to arrange portlets just the way you like them.

Select one of the following:

Explanation