连续十一次被评为Gartner数字化体验平台(DXP)魔力象限的领导者
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Certification

Back-End Developer 7.2
Certification

Put your developer skills to the test with Liferay DXP 7.2 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. Blade CLI lets you create projects that can be used only with Liferay Developer Studio.
    True
    False
    Answer:  False
     
  2. Which of the following statements about OSGi are true?
    (Please select all correct answers.)
    A. An OSGi component is any Java class inside a bundle that is declared to be a component.
    B. An OSGi component doesn’t have a lifecycle.
    C.A service is an OSGi component registered to the OSGi container's service registry.
    D. Declarative services (DS) is a service that handles OSGi dependency injection and allows you to publish, find, and bind services based on XML metadata and annotations.
    E. An OSGi component cannot be stopped.
    Answer:  A, C, and D
     
  3. Which command do you need to execute to close the connection to the Gogo Shell without shutting the OSGi container down?
    A. shutdown
    B. Exit
    C. Quit
    D. Disconnect
    Answer: D

Topics:

Each topic will be a percentage of the test below.
全部展开 全部折叠
站点和内容管理

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.

多个商店 — 一个账号可以管理多个商店。

Liferay Workspace

产品内容管理

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.

产品类型 — 销售实体产品、订购类产品、服务、产品Bundle和数字化商品。

OSGi Bundles

OSGi Components and Services

Sharing Features

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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

Manage Module Dependencies

目录和产品浏览

Liferay Frameworks expand the capabilities of your implementations.

页面生成器 — 使用拖放和自带的应用程序如产品详细信息显示、购物车、搜索栏等创建页面。

Felix Web Console

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结账

Extending and customizing Liferay Portal for your own needs.

结账页面 — 显示订单信息如日期、付款方式、合计和客户账户信息。

Liferay MVC Portlet Module

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价格和折扣

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

账户组 — 为每个分组创建用户分组和目标价目表、折扣或促销。

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

Liferay 7.2: Portal Search | 10%

Liferay Message Bus (LMB) is a service-level API for exchanging messages inside Liferay.

.

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. This exam is based off of the Liferay Training course Back-End Developer.
  2. 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.
  3. Review additional source material. Liferay Developer Network is an amazing complementary source of information for the exam.
  4. 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.
  5. Register.
  6. 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

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