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Today, with intense competition for client loyalty and ever-increasing demands for enhanced service, businesses may find themselves exhausted in their attempts to stay up. Simply having a presence online is inadequate to attract the attention of customers and maintain existing ones. E-commerce systems that are limited in terms of flexibility and adaptability, as well as their integration capabilities, hinder business growth.

Oracle ATG E-commerce solution understands the need for sophisticated software that satisfies all of the aforementioned objectives. Over 700 top companies, like Nike, Walmart, and Sephora, rely on the Oracle ATG platform, which is why the industry's need for ATG expertise is rising. In this blog, we've compiled a collection of ATG interview questions and answers in 2023 based on professional guidance.

Prepare these questions in advance to boost your confidence and get you ready for the interview.

ATG Interview Questions and Answers

Oracle ATG Interview Questions For Freshers

1. What exactly is ATG?

Oracle ATG is a cutting-edge technology that provides a highly configurable architecture that goes apart from being merely an e-commerce solution. It includes out-of-the-box administration of omnichannel engagements, quick and rapid creation of new webpages, and scalable business-user control that is well-suited for collaboration with other services.

2. What is the component of ATG?

ATG is a system configuration file (a regular text file with the .properties extension) that makes use of a Java class. 

3. What are the ATG dynamo components used for? 

There are three distinct types of ATG dynamo components available, including the following: 

  • Global Method
  • Request Method
  • Session.

Global corresponds to the default scope of the ATG dynamo module.

4. What is an ATG droplet?

Droplets serve as the foundation for all ATG applications' front-end functionality. Droplets provide the seamless integration of dynamic content inside Java Server Pages (JSPs). Due to the ease with which droplets may be inserted into JSPs, users without a prior understanding of Java can manage the presentation of dynamic content. 

5. What constitutes the essence of ATG? 

The ATG's foundation is the Dynamic Application Framework (DAF), which implements a component-based development approach using JavaBeans and Java Server Pages (JSPs). 

6. What are the different types of pipelines used by ATG? 

Dynamo's request handling pipelines are: 

  • DAS Servlet Pipeline - This is the pipeline that is utilized to process JHTML requests.
  • DAF Servlet Pipeline - This pipeline is used to process JSP requests.

7. What is an ATG nucleus?

In ATG, the term "Nucleus" refers to the ATG component box. It offers components with a hierarchical address space. Each module has a unique complete name that may be referenced by pages and other parts. 

8. What is an ATG pipeline?

A pipeline is a type of execution framework that allows the program execution in modules. Pipelines are used by ATG Commerce to do operations such as loading an Order, storing an Order, and closing out an Order. 

9. What are ATG Form Handlers?

ATG Form Handler is an intermediary class that sits between the output of a JSP field and its bean object. They are responsible for validating form input prior to submission, writing to and reading from a library or repository, and redirecting the user to various pages based on the submission's results.

10. What Is ATG Tag Library?

ATG is a subset of the JSP core tag library. ATG, on the other hand, has its own collection of tag libraries. 

11. What is ATG DPS? What are its constituents?

The ATG Dynamo Personalization System is another name for the ATG DPS. This is accomplished via the use of customer profile information and several regulatory requirements that ensure the user receives the most relevant information. The primary components of ATG DPS are as follows:

  • Management System for User Profiles.
  • System for Targeting Content.
  • System for sending targeted e-mails.

12. What is the difference between a Form Handler, a Droplet, and a Servlet?

  • When forms are available, form handlers are utilized. They assist in validating the applications.
  • ATG's droplet is used to insert or render data into the database.
  • Servlets are used to submit data; they serve as a controller. This field can not be used to store data.

13. What performance difficulties does ATG have?

ATG has a number of performance limitations:

  • Database activity is quite active
  • Issues with CPU usage
  • SQL queries execute for an extended period of time
  • Response times are slow.

14. What is the distinction between an Item cache and a Query cache? 

Item Cache: It stores the value of object storage items, which are then retrieved using the repository IDs. This item cache category can be utilized explicitly with an authorized item descriptor. 

Query Cache: This query cache parameter stores the ATG IDs of objects in the library that match the specified queries. When you run the Query cache, you will see the following output: 

  • The query cache's result contains the repository IDs.
  • The item cache contains the repository items that relate to them. 

15. What are the various forms of caching? 

There are five distinct ways of caching. They are as follows:

  • Simple
  • Locked
  • Distributed
  • JMS that is distributed
  • Hybridization on a Distributed Scale.

16. What Is A Context Root? 

It is the web portal’s URL mounting port. It determines the URL that site visitors will use to access the site. 

17. What Is The Base Class For ATG Form Handlers? 

18. Where can you get ATG's price lists? 

The pricing list feature in ATG enables users to target distinct sets of prices at distinct client segments. This sort of pricing list is handled in the Account using a single interface. 

19. What are the distinctions between express checkout and regular checkout? 

Express checkout is often used to verify that the user's login information has been successfully stored. 

Checkout is nothing more than entering all of the necessary information, such as shipping and billing information, and this data is not kept.

Oracle ATG Interview Questions For Experienced

20. What are modification objects? What function do they perform? 

The Modification object is an abstract model that attempts to represent all of the possible ways in which the order can be modified. There are three sorts of modifications: additions, deletions, and updates.

Because modifications may be targeted, they can affect shipping groupings, payment collectives, orders, and relationships. A status field is included with modifications to indicate whether the alteration was successful or unsuccessful. 

21. What is the primary distinction between JSP tag libraries and DSP tag libraries? 

The primary distinction between JSP and DSP tag libraries is as follows: 

DSP is a tag library designed specifically for ATG that executes just DAF framework resources. DSP imports all class-type objects.

JSP encompasses all of the web design and development features. JSP only imports basic data types. 

22. What is the benefit of having a nucleus in ATG? 

The advantages of Nucleus in ATG include the following:

  • It provides an easy-to-use interface for creating new components.
  • Applications do not have to contain code to generate instances of components in the nucleus. It is configured and managed using configuration files.
  • By layering configuration files Nucleus enables easy modification and extension of component characteristics.
  • Nucleus enables application developers to easily configure the scope of their modules.

23. How can the output of a Java servlet be included in a JSP? 

To include the output of a Java servlet in a JSP, you must use the DSP:Droplet tag with the bean parameter. 

24. How can a component be constructed?

There are two methods in which we may construct a component:

  • Through the use of ACC.
  • By automatically creating java+properties scripts within the Eclipse/module.

25. What do HandleX methods include? 

The actual function to be executed is included in the HandleX methods. It's a similar technique to handleLogin in ProfileFormHandler. 

26. How Are Derived Properties Defined? 

Derived Properties are when an object item derives its property's value from some other repository object or from another property within the same resource item. 

27. What are the most frequently seen components of ATG Dynamo? 

  • Cart
  • Address for Billing
  • Payment
  • Confirmation by Email
  • Login.

28. What purpose do scenarios serve? 

Scenario anticipates and tracks the activities of visitors to your website and responds appropriately, such as by customizing the site's content, offering price discounts, or sending targeted e-mail messages. 

29. What are the benefits of DAF? 

  • It is used to manage massive amounts of data.
  • It is capable of inserting into the database any object of type 1 call.
  • Dynamo messaging with the help of a patch bay.
  • Injection of dependencies.

30. What are the ForEach Droplet's input parameters? 

  • Array
  • IndexName
  • ElementName.

31. What is

It is the base class for ATG Form Handlers.

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About Author


Liam Plunkett

Solution Architect

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