Search test library by skills or roles
⌘ K

About the test:

The Entity Framework Online Test uses scenario-based MCQs to evaluate candidates on their knowledge of Entity Framework, including their proficiency in working with database schema, data modeling, and query optimization. The test also evaluates a candidate's familiarity with LINQ (Language-Integrated Query) and its integration with Entity Framework. The test aims to evaluate a candidate's ability to work with Entity Framework effectively and design and develop data-driven applications that adhere to best practices and performance standards.

Covered skills:

  • Entity States
  • Entity Properties
  • Entity Model
  • ORM
  • LINQ
  • Query Optimization
  • Database Design
  • Entity Objects
  • Transactions and SQL
  • Entity Framework Designer
  • Database Connectivity
  • Database First Approach
  • Data Access Layer
  • Performance Tuning

9 reasons why
9 reasons why

Adaface Entity Framework Test is the most accurate way to shortlist Entity Framework Developers



Reason #1

Tests for on-the-job skills

The Entity Framework 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:

  • Ability to work with Entity States
  • Knowledge of Entity Objects
  • Understanding of Entity Properties
  • Experience with Transactions and SQL
  • Proficiency in Entity Model
  • Familiarity with Entity Framework Designer
  • Understanding of ORM (Object Relational Mapping)
  • Expertise in Database Connectivity
  • Proficiency in LINQ
  • Knowledge of Database First Approach
  • Ability to optimize queries
  • Experience in building Data Access Layers
  • Understanding of Database Design
  • Knowledge of Performance Tuning
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 Entity Framework Online Test will be non-googleable.

🧐 Question

Medium

Global Query Filters
Global Query Filters
Soft Delete
Solve
In an Entity Framework Core project, you're working on an e-commerce application where products can be 'soft deleted'. A soft deleted product is not physically removed from the database, but is flagged as deleted and should not appear in normal query results. Assume that your Product model includes an IsDeleted boolean property.

Your task is to implement a global query filter to exclude soft deleted products from all queries throughout the application.

Which of the following is the correct way to implement this requirement in your DbContext derived class, ProductContext?
 image

Medium

Implicit and Explicit Loading
Loading Strategies
Relationships
Solve
In an Entity Framework Core project, you have two related entities, Product and Category. Each Product entity has a navigation property Category that represents the Category entity associated with the product.

You have the following code that retrieves a product:
 image
The Product and Category entities are defined as follows:
 image
You call the GetProduct method and then access the Category.Name property of the returned Product entity. What will happen?
A: The Category.Name property will have the name of the category associated with the product.
B: The Category.Name property will be null
C: An NullReferenceException error will be thrown when accessing the Category.Name property.
D: The Category.Name property will have the default value for a string

Medium

Transaction Management
Transaction Management
Solve
In an Entity Framework Core project, you are tasked with managing transactional operations within a ProductService. Assume the database context, DbContext, is injected into ProductService. You need to ensure that an operation updating the stock quantity of a product is atomic. If any error occurs during this operation, the changes must not be saved to maintain data integrity.

Given the following code snippet for the UpdateStock method, which is the correct way to achieve this?
 image
 image

Medium

base code and queries
Solve
Check the following base LINQ code and two LINQ queries that follow:
 image
 image
Which of the following statements are true about the output of CODE ONE with base code and CODE TWO with base code?

Easy

IEnumerable
Solve
What does the following LINQ code output?
 image

Medium

AppDomain Resource Scoping
Configuration Management
AppDomain
Resource Scoping
Solve
Consider a scenario where you have a .NET application that needs to load different configurations for different components running in separate AppDomains. You have the following code structure:
 image
The `ConfigManager` class is designed to load and store configurations for different domains. What will be the output of this program, assuming `ConfigA.xml` and `ConfigB.xml` contain distinct settings?
A: Config in DomainA: [Settings from ConfigA.xml], Config in DomainB: [Settings from ConfigB.xml]
B: Config in DomainA: null, Config in DomainB: null
C: Config in DomainA: [Settings from ConfigB.xml], Config in DomainB: [Settings from ConfigA.xml]
D: A runtime exception is thrown due to cross-domain operation.
E: Config in DomainA: [Settings from ConfigA.xml], Config in DomainB: [Settings from ConfigA.xml]
F: The output is unpredictable and depends on the runtime environment.

Medium

IDisposable Pattern
Garbage Collection
IDisposable Pattern
Memory Management
Solve
Consider the following .NET C# code snippet implementing IDisposable pattern:
 image
What is true about the garbage collection and resource management in this code?
A: The finalizer will always be called when the object is garbage collected.
B: The `Dispose` method is only called when explicitly invoked.
C: Managed resources will be freed in the finalizer.
D: Unmanaged resources are only freed if `Dispose` is called with `true`.
E: The `GC.SuppressFinalize` method prevents the finalizer from being called.
F: The `using` statement ensures that unmanaged resources are always freed.

Medium

Remoting and Object Lifetime
.NET Remoting
Object Lifetime
MarshalByRefObject
Solve
In a .NET application, you are using .NET Remoting to communicate between different application domains. You have the following server-side code:
 image
This `RemoteObject` class is hosted in one application domain and accessed from another. Considering the lease settings (InitialLeaseTime, SponsorshipTimeout, RenewOnCallTime), what will happen if a client accesses the `GetData` method every 3 seconds?
A: The object will be disconnected after 5 seconds, regardless of the calls.
B: The lease will be renewed, and the object remains accessible as long as it's called every 3 seconds.
C: The object will be disconnected after 7 seconds, even with the regular calls.
D: An exception will be thrown due to lease timeout.
E: The lease will be renewed indefinitely without disconnection.
F: The object will be disconnected only if there is a call after 5 seconds but within 7 seconds.

Hard

Classes and Constructors
OOPs
Solve
What is the output of the following C# code?
 image

Easy

Arrays and Exceptions
Arrays
Exceptions
Solve
What is the output of the following C# code?
 image

Medium

Multiple Namespaces
Solve
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
 image

Medium

Static and constructors
OOPs
Solve
What is the output of the following C# code?
 image

Medium

Multi Select
JOIN
GROUP BY
Solve
Consider the following SQL table:
 image
How many rows does the following SQL query return?
 image

Medium

nth highest sales
Nested queries
User Defined Functions
Solve
Consider the following SQL table:
 image
Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
 image

Medium

Select & IN
Nested queries
Solve
Consider the following SQL table:
 image
Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
 image

Medium

Sorting Ubers
Nested queries
Join
Comparison operators
Solve
Consider the following SQL table:
 image
What will be the first two tuples resulting from the following SQL command?
 image

Hard

With, AVG & SUM
MAX() MIN()
Aggregate functions
Solve
Consider the following SQL table:
 image
How many tuples does the following query return?
 image
🧐 Question🔧 Skill

Medium

Global Query Filters
Global Query Filters
Soft Delete

2 mins

Entity Framework
Solve

Medium

Implicit and Explicit Loading
Loading Strategies
Relationships

3 mins

Entity Framework
Solve

Medium

Transaction Management
Transaction Management

2 mins

Entity Framework
Solve

Medium

base code and queries

4 mins

LINQ
Solve

Easy

IEnumerable

2 mins

LINQ
Solve

Medium

AppDomain Resource Scoping
Configuration Management
AppDomain
Resource Scoping

3 mins

.NET
Solve

Medium

IDisposable Pattern
Garbage Collection
IDisposable Pattern
Memory Management

2 mins

.NET
Solve

Medium

Remoting and Object Lifetime
.NET Remoting
Object Lifetime
MarshalByRefObject

3 mins

.NET
Solve

Hard

Classes and Constructors
OOPs

2 mins

C#
Solve

Easy

Arrays and Exceptions
Arrays
Exceptions

2 mins

C#
Solve

Medium

Multiple Namespaces

2 mins

C#
Solve

Medium

Static and constructors
OOPs

3 mins

C#
Solve

Medium

Multi Select
JOIN
GROUP BY

2 mins

SQL
Solve

Medium

nth highest sales
Nested queries
User Defined Functions

3 mins

SQL
Solve

Medium

Select & IN
Nested queries

3 mins

SQL
Solve

Medium

Sorting Ubers
Nested queries
Join
Comparison operators

3 mins

SQL
Solve

Hard

With, AVG & SUM
MAX() MIN()
Aggregate functions

2 mins

SQL
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Global Query Filters
Global Query Filters
Soft Delete
Entity Framework
Medium2 mins
Solve
Implicit and Explicit Loading
Loading Strategies
Relationships
Entity Framework
Medium3 mins
Solve
Transaction Management
Transaction Management
Entity Framework
Medium2 mins
Solve
base code and queries
LINQ
Medium4 mins
Solve
IEnumerable
LINQ
Easy2 mins
Solve
AppDomain Resource Scoping
Configuration Management
AppDomain
Resource Scoping
.NET
Medium3 mins
Solve
IDisposable Pattern
Garbage Collection
IDisposable Pattern
Memory Management
.NET
Medium2 mins
Solve
Remoting and Object Lifetime
.NET Remoting
Object Lifetime
MarshalByRefObject
.NET
Medium3 mins
Solve
Classes and Constructors
OOPs
C#
Hard2 mins
Solve
Arrays and Exceptions
Arrays
Exceptions
C#
Easy2 mins
Solve
Multiple Namespaces
C#
Medium2 mins
Solve
Static and constructors
OOPs
C#
Medium3 mins
Solve
Multi Select
JOIN
GROUP BY
SQL
Medium2 mins
Solve
nth highest sales
Nested queries
User Defined Functions
SQL
Medium3 mins
Solve
Select & IN
Nested queries
SQL
Medium3 mins
Solve
Sorting Ubers
Nested queries
Join
Comparison operators
SQL
Medium3 mins
Solve
With, AVG & SUM
MAX() MIN()
Aggregate functions
SQL
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 Entity Framework Online 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 Entity Framework Online 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 Entity Framework Assessment Test

Why you should use Pre-employment Entity Framework Online Test?

The Entity Framework Online 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 Entity States and their impact on data persistence
  • Ability to work with Entity Objects and perform CRUD operations
  • Proficiency in working with Entity Properties and mapping them to database fields
  • Experience with Transactions and SQL in the context of Entity Framework
  • Familiarity with Entity Model and its role in defining the database schema
  • Expertise in using Entity Framework Designer for visual mapping and code generation
  • Strong understanding of Object-Relational Mapping (ORM) concepts

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 Entity Framework Online Test?

  • Entity States

    Entity states refer to the different states an entity can be in within the Entity Framework, such as added, modified, or deleted. Understanding entity states is crucial for managing data changes and implementing proper CRUD operations.

  • Entity Objects

    Entity objects are the representations of database objects in the Entity Framework. They are used to perform operations on the data, such as querying, inserting, updating, and deleting. Assessing knowledge of entity objects ensures that candidates are well-versed in manipulating data using the framework.

  • Entity Properties

    Entity properties are the attributes of an entity, defining its characteristics and storing data. Evaluating candidates' understanding of entity properties ensures that they can effectively map database columns to entity properties and handle data manipulation efficiently.

  • Transactions and SQL

    Transactions and SQL skills are essential for managing concurrent data operations and ensuring data integrity in a multi-user environment. The ability to work with transactions and write optimized SQL queries is crucial for efficient data access and manipulation.

  • Entity Model

    The entity model represents the conceptual model of a database in the Entity Framework. It includes entities, relationships, and associations. Assessing knowledge of entity modeling ensures that candidates can design and implement effective data models using the Entity Framework.

  • Entity Framework Designer

    The Entity Framework Designer is a visual tool used to design entity models, mapping database objects to entity classes. Understanding the Entity Framework Designer enables candidates to efficiently create and modify entity models, facilitating streamlined application development.

  • ORM

    ORM stands for Object-Relational Mapping, which is the technique used by the Entity Framework to map database objects to entity objects. Assessing candidates' knowledge of ORM ensures that they can work effectively with the Entity Framework and understand the underlying principles of object-relational mapping.

  • Database Connectivity

    Database connectivity skills involve establishing and maintaining connections to databases for performing data operations. Assessing database connectivity skills helps identify candidates who can effectively establish database connections, handle connection pooling, and efficiently manage database access in the context of the Entity Framework.

  • LINQ

    LINQ (Language Integrated Query) is a powerful feature of the Entity Framework that enables querying and manipulating data in a type-safe manner. Assessing candidates' knowledge of LINQ ensures that they can leverage LINQ expressions to efficiently query data and perform complex data manipulations.

  • Database First Approach

    The database-first approach in the Entity Framework involves generating the entity model from an existing database schema. Assessing knowledge of the database-first approach ensures that candidates can work with existing databases and generate entity models accurately and efficiently.

  • Query Optimization

    Query optimization skills involve understanding and implementing techniques to improve the performance of database queries in the Entity Framework. Candidates with strong query optimization skills can write efficient queries, optimize database access, and improve overall application performance.

  • Data Access Layer

    The data access layer is the component of an application responsible for retrieving and manipulating data from the database. Assessing knowledge of the data access layer in the context of the Entity Framework ensures that candidates can design and implement efficient data access components that interact seamlessly with the framework.

  • Database Design

    Database design skills encompass the ability to analyze requirements and design efficient and scalable database schemas. Evaluating candidates' knowledge of database design ensures that they can design database schemas that align with best practices, optimize data storage, and facilitate effective data retrieval and manipulation.

  • Performance Tuning

    Performance tuning skills involve analyzing and optimizing the performance of applications built with the Entity Framework. Candidates with performance tuning skills can identify performance bottlenecks, utilize caching strategies, optimize database access, and improve overall application responsiveness.

  • 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 Entity Framework Online Test to be based on.

    Entity States
    Entity Objects
    Entity Properties
    Transactions and SQL
    Entity Model
    Entity Framework Designer
    ORM
    Database Connectivity
    LINQ
    Database First Approach
    Query Optimization
    Data Access Layer
    Database Design
    Performance Tuning

What roles can I use the Entity Framework Online Test for?

  • Entity Framework Developer
  • ASP.NET Developer
  • .NET Developer

How is the Entity Framework 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

  • Knowledge of Database Connectivity and working with different database providers
  • Proficiency in LINQ and its usage for querying data with Entity Framework
  • Experience with Database First Approach and generating entity classes from existing databases
  • Ability to optimize queries and improve performance using Entity Framework
  • Expertise in designing and implementing a robust Data Access Layer using Entity Framework
  • Strong understanding of Database Design principles and normalization techniques
  • Knowledge of Performance Tuning techniques for improving Entity Framework applications

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

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

Entity Framework Hiring Test FAQs

What is Entity Framework Assessment Test?

The Entity Framework assessment test is a pre-employment testing tool used by employers to assess a candidate's ability to work with the Entity Framework. It is a .NET Framework component that enables developers to work with data in an object-oriented way.

The assessment test focuses on questions around Entity Framework architecture, Entity Data Model (EDM), Entity SQL language, Object Services API & other fundamental topics to test for on-the-job skills.

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.

customers across world
Join 1200+ companies in 75+ countries.
Try the most candidate friendly skills assessment tool today.
g2 badges
Ready to use the Adaface Entity Framework Online Test?
Ready to use the Adaface Entity Framework Online Test?
logo
40 min tests.
No trick questions.
Accurate shortlisting.
Terms Privacy Trust Guide
ada
Ada
● Online
Previous
Score: NA
Next
✖️