13757516
Descripción
Test por Aidos Baktaev, actualizado hace más de 1 año
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Creado por Aidos Baktaev
hace más de 6 años
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Pregunta 1
Pregunta
Which of the following are value types? (Choose 3)
Respuesta
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Decimal
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String
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System.Drawing.Point
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Integer
Pregunta 2
Pregunta
Which is the correct declaration for a nullable integer?
Respuesta
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Nullable(int) i = null;
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Nullable<int> i = null;
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int i = null;
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int<Nullable> i = null;
Pregunta 3
Pregunta
Which of the following are reference types? (Choose 2)
Respuesta
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Types declared Nullable
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String
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Exception
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All types derived from System.Object
Pregunta 4
Pregunta
What is the correct order for catch clauses when handling different exception types?
Respuesta
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Most general to most specific
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Most likely to occur to least likely to occur
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Most specific to most general
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Least likely to occur to most likely to occur
Pregunta 5
Pregunta
The following scenarios, which would be a good reason to use the String- Builder class instead of the String class?
Respuesta
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When building a string from shorter strings
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When working with text data longer than 256 bytes
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When you want to search and replace the contents of a string
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When a string is a value type
Pregunta 6
Pregunta
Why should you close and dispose of resources in a finally block instead of a catch block?
Respuesta
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It keeps you from having to repeat the operation in each catch.
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A finally block runs whether or not an exception occurs.
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The compiler throws an error if resources are not disposed of in the finally block.
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You cannot dispose of resources in a catch block.
Pregunta 7
Pregunta
You create an application with built-in exception handling. For some types of exceptions, you want to add an event to the Event Log that specifies the line of code that initiated the exception. Which Exception property should you use?
Respuesta
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Message
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StackTrace
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Source
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Data
Pregunta 8
Pregunta
You pass a value-type variable into a procedure as an argument. The procedure changes the variable; however, when the procedure returns, the variable has not changed. What happened?
Respuesta
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The variable was not initialized before it was passed in.
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Passing a value type into a procedure creates a copy of the data.
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The variable was redeclared within the procedure level.
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The procedure handled the variable as a reference.
Pregunta 9
Pregunta
Which of the following statements are true? (Choose 2)
Respuesta
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Inheritance defines a contract between types.
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Interfaces define a contract between types.
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Inheritance derives a type from a base type.
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Interfaces derive a type from a base type.
Pregunta 10
Pregunta
Which of the following are examples of built-in generic types? (Choose 2)
Respuesta
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Nullable
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Boolean
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EventHandler
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System.Drawing.Point
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