C# Test

C# linkedin Quiz answers

In which of these situations are interfaces better than abstract classes

• Interfaces are a legacy of older versions of C#, and are interchangeable with the newer abstract class feature.
• You should use both an interface and an abstract class when defining any complex object.
• When you need a list of capabilities and data that are classes-agnostic, use an interface. When you need a certain object type to share characteristics, use an abstract class.
• When you need to define an object type's characteristics, use an interface. When you need to define an object type's capabilities, use an abstract class.

C# linkedin learning

Which of the following is true of delegates?

• Only variables can be passed to delegates as parameters.
• They cannot be used as callbacks.
• Delegates are not supported in the current version of C#.
• They can be chained together.

C# linkedin test

Which of the following best defines C#'s asynchronous programming model?
 

• Inherited callback
• Reactive
• Task-based
• Callback-based

linkedin C# assessment answers

How would you determine if a class has a particular attribute?

Attribute.GetCustomAttribute(typeof(ExampleController), typeof(SubControllerActionToViewDataAttribute))

var type = typeof(SomeType);

var attribute = type.GetCustomAttribute();

Attribute.GetCustomAttribute(typeof(ExampleController), typeof(SubControllerActionToViewDataAttribute))

typeof(MyPresentationModel).Should().BeDecoratedWith();

linkedin C# test answers

What is the difference between the ref and out keywords?

• Variables passed to out specify that the parameter is an output parameter, white ref specifies that a variable may be passed to a function without being initialized.
• Variables passed to ref can be passed to a function without being initialized, while out specifies that the value is a reference value that can be changed inside the calling method.
• Variables passed to ref specify that the parameter is an output parameters, while out specifies that a variable may be passed to a function without being initialized.
• Variables passed to out can be passed to a function without being initialized, while ref specifies that the val