Crowdly

Only in async context

With Task

With Task<T>

In catch or finally blocks

Where is correct to use modifier async?

With any lambdas and anonymous methods which return Task

With any method which returns Task

With a method which has await in its body

With classes

With any methods

Please, write other way how we can get a result from async method:

        public async static Task test()
        {
            //option1:  
            // string name = SomeAsyncMethod().Result;

            //option2:
            string name = ;

            Console.WriteLine(value);
        }

Match numbers with appropriate missing code

Match the method's description with appropriate name of Task method

Waits for the Task to complete execution

Creates a task that will complete when any of the supplied tasks have completed

Creates a task that completes after a specified time interval

Creates a task that will complete when all of the Task objects in an array have completed

Match numbers with appropriate missing code

An interface can inherit from another interface in C#.

True

False

Which of the following statements is true about abstract classes in C#?

Abstract classes can only contain abstract methods.

Derived classes that inherit from an abstract class must implement all the parent's abstract members.

Abstract class can have access modifiers (public, protected, internal, or protected internal) for their members.

An abstract class can have operator overloading.

Abstract classes cannot have constructors.

Which keywords are used to implement polymorphism in C#?

override

sealed

virtual

polymorphic

base

Abstract methods must be marked with the "abstract" keyword and have no implementation.

True

False