Entity Framework Online Test

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:

Lazy Load
Entity States
Deleting an Entity
Transactions and SQL
Entity Framework Designer

Entity Validation
Entity Objects
Entity Properties
Entity Model

See all covered skills

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9 reasons why

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

Reason #1

Tests for on-the-job skills

The Entity Framework 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.

The Adaface Entity Framework Online Test screens candidates for the typical skills recruiters look for .NET Developer roles:

Experience as a .NET Developer
Knowledge of .NET infrastructure
Proficiency in C#, F#, or VB.NET
Ability to use SQL or Oracle

The insights generated from this assessment can be used by recruiters and hiring managers to identify the best candidates for .NET Developer roles. Anti-cheating features enable you to be comfortable with conducting assessments online. The Entity Framework Online Test is ideal for helping recruiters identify which candidates have the skills to do well on the job.

Reason #2

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.

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.

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?
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: The Product and Category entities are defined as follows: 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?
Medium base code and queries	Solve
Check the following base LINQ code and two LINQ queries that follow: 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?
Medium Classes and Constructors OOPs	Solve
What is the output of the following C# code?
Easy Arrays and Exceptions Arrays Exceptions	Solve
What is the output of the following C# code?
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?
Medium Static and constructors OOPs	Solve
What is the output of the following C# code?
Medium Multi Select	Solve
Consider the following SQL table: How many rows does the following SQL query return?
Medium Select & IN	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
Hard With, AVG & SUM	Solve
Consider the following SQL table: How many tuples does the following query return?

	🧐 Question	🔧 Skill
	Medium Global Query Filters Global Query Filters Soft Delete	2 mins Entity Framework	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?
	Medium Implicit and Explicit Loading Loading Strategies Relationships	3 mins Entity Framework	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: The Product and Category entities are defined as follows: 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	2 mins Entity Framework	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?
	Medium base code and queries	4 mins LINQ	Solve
Check the following base LINQ code and two LINQ queries that follow: Which of the following statements are true about the output of CODE ONE with base code and CODE TWO with base code?
	Easy IEnumerable	2 mins LINQ	Solve
What does the following LINQ code output?
	Medium Classes and Constructors OOPs	2 mins C#	Solve
What is the output of the following C# code?
	Easy Arrays and Exceptions Arrays Exceptions	2 mins C#	Solve
What is the output of the following C# code?
	Medium Multiple Namespaces	2 mins C#	Solve
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
	Medium Static and constructors OOPs	3 mins C#	Solve
What is the output of the following C# code?
	Medium Multi Select	2 mins SQL	Solve
Consider the following SQL table: How many rows does the following SQL query return?
	Medium Select & IN	3 mins SQL	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Hard With, AVG & SUM	2 mins SQL	Solve
Consider the following SQL table: How many tuples does the following query return?

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Global Query Filters Global Query Filters Soft Delete	Entity Framework	Medium	2 mins	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?
	Implicit and Explicit Loading Loading Strategies Relationships	Entity Framework	Medium	3 mins	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: The Product and Category entities are defined as follows: 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
	Transaction Management Transaction Management	Entity Framework	Medium	2 mins	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?
	base code and queries	LINQ	Medium	4 mins	Solve
Check the following base LINQ code and two LINQ queries that follow: Which of the following statements are true about the output of CODE ONE with base code and CODE TWO with base code?
	IEnumerable	LINQ	Easy	2 mins	Solve
What does the following LINQ code output?
	Classes and Constructors OOPs	C#	Medium	2 mins	Solve
What is the output of the following C# code?
	Arrays and Exceptions Arrays Exceptions	C#	Easy	2 mins	Solve
What is the output of the following C# code?
	Multiple Namespaces	C#	Medium	2 mins	Solve
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
	Static and constructors OOPs	C#	Medium	3 mins	Solve
What is the output of the following C# code?
	Multi Select	SQL	Medium	2 mins	Solve
Consider the following SQL table: How many rows does the following SQL query return?
	Select & IN	SQL	Medium	3 mins	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	With, AVG & SUM	SQL	Hard	2 mins	Solve
Consider the following SQL table: How many tuples does the following query return?

Reason #4

1200+ customers in 75 countries

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.

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.

Reason #7

Detailed scorecards & comparative results

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.

Reason #9

Advanced Proctoring

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About Entity Framework/.NET Developer Roles

The Entity Framework enables developers to work with data in the form of domain-specific objects and properties, such as customers and customer addresses, without having to concern themselves with the underlying database tables and columns where this data is stored.

A .NET developers uses Microsoft's.NET framework to create attractive, well-functioning applications. A .NET developers has extensive knowledge of at least one of the programming languages in use, as well as good graphic design abilities.

Typical .NET Developer responsibilities include:

Utilizing .NET infrastructure to create software solutions
Collaborating to facilitate the creation of large, complex developments
Reformulating existing code to ensure adherence to guidelines
Checking code to detect and remedy errors
Testing outputs to ensure an excellent working order
Ensuring outputs are visually appealing, user-friendly, and engaging
Deploying developments and monitoring uptake

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

Entity Framework Developer
.Net Architect/Developer

What topics are covered in the Entity Framework Online Test?

Object-Relational Mapper

ORM

MVC Model

Entity Framework Architecture

Entity Data Model

EDM

LINQ to Entities

L2E

Entity SQL

E-SQL

Entity Client Data Provider

Net Data Provider

Object Service

Entity Data Model

Migration

Entity Framework Approaches

Navigation Property

Entity States

T4 Entity

Conceptual Schema Definition Language

CSDL

Storage Schema Definition Language

SSDL

Mapping Schema Language

MSL

XML Generation Methods

Deferred Execution

DbSet

DbContext

Pluralize

Singularize

Dapper

Plain Old CLR Objects

POCO

Database Concurrency

Micro ORM

Complex Type

ObjectSet

DbEntityEntry

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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

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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.

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
Web proctoring
Webcam proctoring
Plagiarism detection
Secure browser

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.