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About the test:

The EJB online test uses scenario-based multiple-choice questions to evaluate a candidate's knowledge and skills related to EJB fundamentals, session beans and message-driven beans, container-managed transactions and security, EJB design patterns and best practices, distributed caching and clustering, and integrating EJB with other Java technologies such as Java Persistence API (JPA) and Java Message Service (JMS). The test aims to assess the candidate's proficiency in EJB and their ability to build robust and scalable enterprise applications using Java.

Covered skills:

  • EJB Architecture
  • Session Beans
  • Container-Managed Persistence
  • EJB Security
  • EJB Timer Service
  • Enterprise Beans
  • Message-Driven Beans
  • Bean-Managed Persistence
  • EJB Transactions
  • Interceptors

9 reasons why
9 reasons why

Adaface EJB Test is the most accurate way to shortlist Java Developers



Reason #1

Tests for on-the-job skills

The EJB Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Understanding the architecture of Enterprise Java Beans
  • Implementing and managing session beans
  • Creating and utilizing message-driven beans
  • Understanding container-managed persistence in EJB
  • Implementing bean-managed persistence in EJB
  • Managing security in EJB applications
  • Working with EJB transactions
  • Utilizing the EJB timer service
  • Implementing interceptors in EJB
  • Designing and implementing EJB applications
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this EJB (Enterprise Java Beans) Test will be non-googleable.

🧐 Question

Easy

Custom Exception
Exception Handling
Custom Exceptions
Solve
What does the following code output?
 image

Hard

Holding References
Solve
What does the following Java code output?
 image

Medium

Abstract Interface
OOPs
Interfaces
Solve
Given following interface:
 image
Which of these are correct classes?
 image

Medium

Garbage Collection
Garbage Collection
Solve
After which line is "bs" object, created on Line 4, eligible for garbage collection?
 image

Hard

Static Init Blocks
OOPs
Solve
What does the following code output?
 image
1) G A B E D H
2) G B A D E H
3) G B A D E H C F
4) C F G A B E D H
5) C F G B A D E H
6) G C F A B E D H
7) G C F B A D E H
🧐 QuestionπŸ”§ Skill

Easy

Custom Exception
Exception Handling
Custom Exceptions

2 mins

Java
Solve

Hard

Holding References

2 mins

Java
Solve

Medium

Abstract Interface
OOPs
Interfaces

2 mins

Java
Solve

Medium

Garbage Collection
Garbage Collection

2 mins

Java
Solve

Hard

Static Init Blocks
OOPs

2 mins

Java
Solve
🧐 QuestionπŸ”§ SkillπŸ’ͺ DifficultyβŒ› Time
Custom Exception
Exception Handling
Custom Exceptions
Java
Easy2 mins
Solve
Holding References
Java
Hard2 mins
Solve
Abstract Interface
OOPs
Interfaces
Java
Medium2 mins
Solve
Garbage Collection
Garbage Collection
Java
Medium2 mins
Solve
Static Init Blocks
OOPs
Java
Hard2 mins
Solve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment EJB (Enterprise Java Beans) Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the EJB (Enterprise Java Beans) Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

View sample scorecard
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the EJB Assessment Test

Why you should use Pre-employment EJB Online Test?

The EJB (Enterprise Java Beans) Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Understanding of EJB Architecture
  • Working with Enterprise Beans
  • Implementation of Session Beans
  • Utilizing Message-Driven Beans
  • Implementing Container-Managed Persistence
  • Managing Bean-Managed Persistence
  • Knowledge of EJB Security
  • Working with EJB Transactions
  • Utilizing EJB Timer Service
  • Implementing Interceptors

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the EJB Online Test?

  • EJB Architecture

    EJB Architecture is a server-side component architecture for the Java Enterprise Edition (JEE) platform. It provides a framework for developing and deploying scalable, distributed, and secure enterprise applications. This skill is measured in the test to evaluate the candidate's understanding of the EJB architecture, which is crucial for developing robust and efficient enterprise applications.

  • Enterprise Beans

    Enterprise Beans are the components of the EJB architecture that implement the business logic of an enterprise application. They encapsulate the application's data and behavior, and provide services to clients. This skill is measured in the test to assess the candidate's ability to design and implement enterprise beans effectively.

  • Session Beans

    Session Beans are a type of Enterprise Beans that represent the business logic of a specific client. They perform operations on behalf of the client and are not shared among multiple clients. This skill is measured in the test to evaluate the candidate's proficiency in developing and managing session beans, which are essential for implementing the core functionality of enterprise applications.

  • Message-Driven Beans

    Message-Driven Beans are a type of Enterprise Beans that enable asynchronous communication in the EJB architecture. They listen for messages from a messaging system and perform actions based on the received messages. This skill is measured in the test to assess the candidate's understanding of message-driven beans and their ability to implement asynchronous messaging in enterprise applications.

  • Container-Managed Persistence

    Container-Managed Persistence is a mechanism provided by the EJB container to manage the persistent storage of entity beans. It automatically handles database operations such as storing, retrieving, and updating data. This skill is measured in the test to evaluate the candidate's knowledge of container-managed persistence and their ability to design and implement entity beans with persistent storage.

  • Bean-Managed Persistence

    Bean-Managed Persistence is an alternative to container-managed persistence where the EJB developer manually handles the database operations within the entity bean code. This skill is measured in the test to assess the candidate's understanding of bean-managed persistence and their ability to implement custom persistence logic in entity beans.

  • EJB Security

    EJB Security deals with securing the access to EJB components based on roles and permissions. It ensures that only authorized users can invoke specific methods on enterprise beans. This skill is measured in the test to evaluate the candidate's knowledge of EJB security mechanisms and their ability to implement secure access control in enterprise applications.

  • EJB Transactions

    EJB Transactions provide a reliable and consistent way to manage data integrity in enterprise applications. They ensure that a group of database operations either all succeed or all fail together. This skill is measured in the test to assess the candidate's understanding of EJB transactions and their ability to implement transactional behavior in enterprise beans.

  • EJB Timer Service

    EJB Timer Service allows the scheduling of time-based events within enterprise beans. It enables the execution of tasks at specific intervals or at a certain point in time. This skill is measured in the test to evaluate the candidate's proficiency in using the EJB Timer Service for implementing scheduled tasks and time-based operations in enterprise applications.

  • Interceptors

    Interceptors are components in the EJB architecture that intercept method invocations and perform additional actions before and after the execution of the intercepted method. They provide a crosscutting functionality that can be applied to multiple EJB components. This skill is measured in the test to assess the candidate's understanding of interceptors and their ability to apply interceptors to enhance the behavior of enterprise beans.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for EJB (Enterprise Java Beans) Test to be based on.

    EJB Architecture
    EJB components
    EJB life cycle
    Stateful session beans
    Stateless session beans
    Singleton session beans
    Message-Driven Beans
    JMS
    Activation Configurations
    Container-Managed Persistence
    Entity Beans
    Bean-Managed Persistence
    Primary Keys
    Relationships
    EJB Security
    Authentication & Authorization
    Roles & Permissions
    Programmatic Security
    Transactions
    Local vs Global transactions
    Container-Managed Transactions
    Bean-Managed Transactions
    Transaction Attributes
    Isolation Levels
    EJB Timer Service
    Timers
    Calendar-based timers
    Interval-based timers
    Interceptors
    Interceptor classes
    Interceptor methods
    Interception lifecycle
    EJB Design Patterns
    Singleton Pattern
    Factory Pattern
    Facade Pattern
    Proxy Pattern
    Service Locator Pattern
    Transfer Object Pattern
    Data Access Object Pattern
    Business Delegate Pattern
    Composite Entity Pattern
    Transfer Object Assembler Pattern
    Service Activator Pattern
    Application Service Pattern
    Business Object Pattern
    Entity Abstraction Pattern
    Asynchronous Services Pattern
    DAO Factory Pattern
    Value List Handler Pattern
    Business Interface Pattern
    Transfer Object Pattern
    Cache Pattern
    Session Facade Pattern
    Presentation Tier Design Pattern
    Service Stub Pattern
    Stereotype Annotation Design Pattern
    Dependency Injection Pattern
    Thread Local Pattern
    Function Delegation Pattern

What roles can I use the EJB Online Test for?

  • Java Developer
  • Application Developer - EJB

How is the EJB Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Advanced EJB Architecture concepts
  • Optimizing Enterprise Beans performance
  • Implementing Advanced Session Bean features
  • Designing and implementing advanced Message-Driven Beans
  • Advanced concepts in Container-Managed Persistence
  • Advanced techniques in Bean-Managed Persistence
  • Managing EJB Security and authorization
  • Advanced EJB transaction management
  • Utilizing advanced EJB Timer Service features
  • Implementing interceptors for advanced use cases
Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

EJB Hiring Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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40 min tests.
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