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Entity Framework Online Skills Assessment Test

Topics Covered

Lazy Load
Entity Validation
Entity States
Entity Objects
Deleting an Entity
Entity Properties
Transactions and SQL
Entity Model
Entity Framework Designer

Useful for hiring

Entity Framework Developer
.Net Architect/Developer
Senior Software Engineer - Entity Framework

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Sample Questions of this test

Question

I can not use LIKE operator in Entity framework. And I can not find anything about supporting operator on queries.
What is the best replacement for this?

Answer

- var q = EFContext.Products.Where(x =>
  SqlFunctions.Find("%CD%BLUE%", x.ProductName) > 0);
- var q = EFContext.Products.Where(x =>
  SqlFunctions.PatIndex("%CD%BLUE%", x.ProductName) > 0);
- var q = EFContext.Products.Where(x =>
  SqlFunctions.Search("%CD%BLUE%", x.ProductName) > 0);

Question

application database contains following tables:
Order: OrderID, CustomerID,OrderDate, ShipAddress
Order_Detail: OrderID,PRoductID, UnitPrice,Quantity.
You need to create a LINQ query to retrieve a list of objects that contains the OrderID and CustomerID properties, the total price amount of each Order record.

Answer

- from details in dataContext.Order_Detail
  group details by details.OrderID into g
  join order in dataContext.Orders on g.Key equals order.OrderID
  select new {
     OrderID = order.OrderID,
     CustomerID = order.CustomerID,
     TotalAmount = g.Sum(od = >od.UnitPrice * od.Quantity)
  }
- dataContext.Order_Detail.GroupJoin(dataContext.Orders,
  d = >d.OrderID,
  o = >o.OrderID,   (dts, ord) = >new {
     OrderID = dts.OrderID,
     CustomerID = dts.Order.CustomerID,
     TotalAmount = dts.UnitPrice * dts.Quantity
  } )
  EntityConnection
- from order in dataContext.
  Orders group order by order.OrderID into g
  join details in dataContext.Order_Detail on g.Key equals details.OrderID
  select new {
  OrderID = details.OrderID,
  CustomerID = details.Order.CustomerID,
  TotalAmount = details.UnitPrice * details.Quantity
  }
  EntityTransaction

Question

Which method should you call on the ObjectContext, to ensure that the orders are added to the local data store?

Answer

- ApplyCurrentValues
- AttachTo
- AddObject

View Test Details

Test details:

This Entity Framework interview test enables employers and recruiters to identify Entity Framework developers by evaluating their working skills and job readiness.

The online Entity Framework quiz contains MCQ's (Multiple Choice Questions), MAQ's (Multiple Answer Questions), Fill in the Blank, Descriptive, True or False.

Test Duration: 20 minutes

15 Application Oriented Questions
05 Theory Questions

The combination of application and theory questions helps to evaluate technical as well as practical skills of candidates

Test description:

Entity Framework Online Test helps recruiters & hiring managers to evaluate in-depth knowledge of candidate about Entity Framework used for Ado .NET before an interview.

Entity Framework is object-relational mapper which enables .Net developers with relational data using domain-specific objects. This framework allows us to automate database related activities. Entity framework is an enhancement to ADO.Net which helps in accessing and storing the data.

The online Entity Framework skills test specially designed to check application, practical skills of an Entity Framework developer – as per Industry Standards. Our Entity Framework quiz test is created and validated by Subject Matter Experts.

Entity Framework assessment test contains questions on following Topics:

Lazy Load
Entity Validation
Entity States
Entity Objects
Deleting an Entity
Entity Properties
Transactions and SQL
Entity Model
Entity Framework Designer

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