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a. A Nullable type is a reference type.
b. A Nullable type is a structure.
c. An implicit conversion exists from any non-nullable value type to a nullable form of that type.
d. An implicit conversion exists from any nullable value type to a non-nullable form of that type.
e. A predefined conversion from the nullable type S? to the nullableВ В type T? exists if there is a predefined conversion from the non-nullable type S to the non-nullable type T
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Which of the following are true about Nullable types?
- a. A Nullable type is a reference type.
- b. A Nullable type is a structure.
- c. An implicit conversion exists from any non-nullable value type to a nullable form of that type.
- d. An implicit conversion exists from any nullable value type to a non-nullable form of that type.
- e. A predefined conversion from the nullable type S? to the nullable type T? exists if there is a predefined conversion from the non-nullable type S to the non-nullable type T
a. A Nullable type is a reference type.
b. A Nullable type is a structure.
c. An implicit conversion exists from any non-nullable value type to a nullable form of that type.
d. An implicit conversion exists from any nullable value type to a non-nullable form of that type.
e. A predefined conversion from the nullable type S? to the nullableВ В type T? exists if there is a predefined conversion from the non-nullable type S to the non-nullable type T
What does the AndAlso operator do?
- a. It performs a Boolean AND operation, evaluating both operands
- b. It performs a Boolean AND operation, evaluating the left-hand side only if the right-hand side is false
- c. It performs a Boolean AND operation, evaluating the right-hand side only if the left-hand side is false
- d. It performs a Boolean AND operation, evaluating the right-hand side only if the left-hand side is true
- e. None of the above
By which contract are the WS-Addressing action and
reply action elements of the soap envelope controllable when Windows
Communication Foundation is used?
- a. ServiceContract
- b. OperationContract
- c. DataContract
- d. MessageContract
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What is the output of the following code?
Dim x = <code>This is the <%= GetAnswer() %></code>.ToString
Console.WriteLine(x)
Dim x = <code>This is the <%= GetAnswer() %></code>.ToString
Console.WriteLine(x)
- a.
This is the <%= GetAnswer() %> - b.
This is the answer - c. This is the <%= GetAnswer() %>
- d. This is the answer
- e. None of the above
Which of the following are not valid namespaces in the .NET framework?
- a. System.Data.OleDb
- b. System.Data.SqlServer
- c. System.Data.Oracle
- d. System.Data.Xml
- e. System.Data.SqlClient
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