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Certification

Back-End Developer 7.3
Certification

Put your developer skills to the test with Liferay DXP 7.3 questions on topics including setting up the development environment, the OSGi Framework, real-world applications, and portal search.

90 Min | 50 Questions | 200 USD

Get Prepared for the Exam

Exam Blueprint

90 Minutes
50 Questions
70% Passing Score

Example Test Questions

  • 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.
  1. Liferay DXP 7.3 has an embedded OSGi container.
    True
    False
    Answer:  True
     
  2. 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
     
  3. 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

Topics:

Each topic will be a percentage of the test below.
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Gestione di siti e contenuti

Creating personalized digital experiences across web, mobile and connected device isthe goal of Liferay DXP's framework, but to accomplish that Liferay leverages the OSGi framework to provide a development environment for modular applications.

Multi-store — Gestisci più negozi da un singolo account.

Liferay Workspace

Product Content Management

Web apps in Liferay Portal are called portlets. Like many web apps, portlets processrequests and generate responses. In the response, the portlet returns content (e.g.HTML, XHTML) for display in browsers. In Liferay, portlets runs in a portion of the webpage. With Portlet, you can create new functionalities.

Tipo di prodotto — Vendi prodotti fisici, prodotti in abbonamento, servizi e prodotti digitali.

OSGi Bundles

OSGi Components and Services

Clicca per ingrandire Clicca per ridurre
Liferay 7.2: Liferay OSGi Container

The Liferay platform is built on OSGi technology: Liferay applications are OSGi applications, and the platform has an embedded OSGi container.

Liferay Modules

Working With Liferay Workspace

Ricerca per catalogo e prodotti

Liferay Frameworks expand the capabilities of your implementations.

Creatore di pagine — Creazione "drag-and-drop" di pagine con dozzine di applicazioni out of the box.

Felix Web Console

Clicca per ingrandire Clicca per ridurre
Checkout

Extending and customizing Liferay Portal for your own needs.

Pagina di checkout — Visualizza le informazioni sugli ordini, come le date, il metodo di pagamento, il prezzo totale e le informazioni sull'account del cliente.

Liferay MVC Portlet Module

Clicca per ingrandire Clicca per ridurre
Prezzi e sconti

Upgrading from Liferay 6.X involves moving from plugins to Liferay modules.

Gruppi di account — Crea gruppi di account e personalizza listini, sconti o promozioni per ogni gruppo.

Access Control

Liferay Frameworks

Liferay 7.2: Angular | 04%

Liferay is compliant with many industry-proven standards.

.

JAX-WS and JAX-RS

OSGi r6

General Data Protection Regulation (GDPR)

Liferay 7.2: React | 04%

As a developer, you may sometimes want to add a persistable and manageable attribute to an existing Liferay data model.

.

Expando API

Liferay 7.2: Overriding Controller Actions | 08%

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 7.2: Catch Portal Events | 06%

All Liferay platform applications are portlets. MVC Commands are portlet lifecycle handlers that implement the MVCCommand interface and are used to break up the controller layer into smaller and more manageable code entities. Although the Apache Struts MVC framework is being replaced with the MVC Commands in Liferay, the platform is still using the framework for some of the native functionalities like portal login and logout.

.

Override Struts Actions

Liferay 7.2: Message Bus | 04%

Lifecycle event listeners are OSGi components that implement the LifecycleAction interface.

.

Intercept Events with Model Listeners

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:
  1. 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.
  2. Review the additional source material. learn.liferay.com is an amazing complementary source of information for the exam.
  3. 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.
  4. Register.
  5. Show up to the testing center with the required identification and take the 90-minute exam.

How to Register

Liferay Certification exams are administered by Kryterion. Please register for an exam on Kryterion's website.
Registration Fee: $200 USD

Verify Certification

Please fill out the form below to verify an individual's completion of an official Liferay Training or Exam.

 
 

Additional Resources for the Exam

Other Available Certifications