All questions are based on Liferay best practices when developing for Liferay DXP.
Unless otherwise indicated in the question, assume a new Liferay installation with no additional plugins installed and no modifications to portal properties.
Liferay DXP 7.3 has an embedded OSGi container. True False Answer: True
Which of the following files does Service Builder use to generate code? A. serviceBuilder.xml B. service.xml C. serviceBuilder.json D. serviceImpl.java Answer: B
Which of the following statements about MVC Commands are true? (Please select all correct answers.) A. MVC Commands are Liferay’s way of implementing the Render, Action, and Resource Serving phases of a portlet. B. MVC Commands are implemented as components. C. MVC Commands are defined in the Java Portlet Specifications JSR 168 and are the default way of supporting various portlet lifecycle methods. D. MVC Commands keep the portlet class lean, making the phases of the portlet more manageable. E. MVC Commands must be implemented through the Gogo Shell. Answer: A, B and D
Each topic will be a percentage of the test below.
Liferay 7.3: Liferay Basics | 10%
Liferay offers developers a platform and a comprehensive set of tools for building web applications. In addition, the Liferay platform is built on OSGi technology: Liferay applications are OSGi applications, and the platform has an embedded OSGi container.
Working With Liferay Workspace
Manage Module Dependencies
Gogo Shell (Basic Commands)
Liferay 7.3: Working with Portlet Modules | 10%
Liferay's user interface relies on portlets but not strictly on the standard portlet specification. Although there are many ways of building out your application's user interface, using the MVC pattern along with portlets as the implementation of the Controller and View Layer is still the essence of Liferay development.
Java Standard Portlet
Liferay MVC Portlet Module
Liferay 7.3: Real-World Applications | 50%
A real-world Liferay application can make use of Liferay's time-saving tools and frameworks.
Liferay Service Builder
Liferay Frameworks (Asset Framework and Portal Search)
Liferay 7.3: Extending Liferay's Schema | 6%
As a developer, you may sometimes want to add a persistable and manageable attribute to an existing Liferay data model.
Enter content here.
Liferay 7.3: Customizing the Service Layer | 4%
All Liferay core services have been designed and generated with the Liferay Service Builder pattern, which automatically generates service wrapper APIs for both remote and local service variants.
Override OSGi Service References
Liferay 7.3: Customizing Portal Search | 10%
Liferay has an extensive search framework. Customization can be done on all layers, from the user interface to the indexing process and index settings.
Basic Search Concepts
Indexing and Searching
Liferay 7.3: Headless | 10%
Liferay DXP has several headless APIs that allow for RESTful interactions with Liferay DXP resources without being tied to Liferay DXP’s UI.
Using Liferay DXP as a Headless Platform
Producing APIs with REST Builder
Preparing for the Exam
Achieving recognition as a Liferay Certified Professional Back-End Developer demonstrates that you understand core concepts for developing Liferay modules and know how to follow Liferay best practices to develop robust, elegant, and maintainable solutions based on the Liferay Platform. The exam is designed to be challenging, yet fair for Liferay developers. Here’s how you can succeed:
Attend the Back-end Developer training course. Attending training is not required before you sit for the exam, but much of the exam material is based on concepts covered in training.
Review the additional source material. learn.liferay.com is an amazing complementary source of information for the exam.
Get hands-on development experience. Some of the topics covered on the exam require the kind of knowledge that comes from real experience developing for the Liferay Platform. If you have attended a developer training, be sure you've completed and reviewed all of the exercises presented during class, even the bonus exercises. If you haven't attended training, spend some time developing applications and customizations. It would also be helpful to review Liferay’s source code to ensure you're familiar with Liferay's best practices.