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1. You are given an assignment to create a code generator to automate the task of creating
repetitive code. Which namespace contains the types needed to generate code?
a. System.Reflection
b. CodeDom
c. Reflection
d. System.CodeDom
2. Which code can create a lambda expression?
a. delegate x = x => 5 + 5;
b. delegate MySub(double x); MySub ms = delegate(double y) { y *
y; }
c. x => x * x;
d. delegate MySub(); MySub ms = x * x;
3. You are consulting for a company called Contoso and are taking over an application that
was built by a third-party software company. There is an executable that is currently not
working because it is missing a DLL file that is referenced. How can you figure out which
DLL files the application references?
a. Create an instance of the Assembly class, load the assembly, and iterate through the
ReferencedAssemblies property.
b. Create an instance of the Assembly class, load the assembly, and call the
GetReferencedAssemblies method.
c. Create an instance of the Assembly class, load the assembly, and iterate through the
Modules property.
d. Create an instance of the Assembly class, load the assembly, and call the
GetModulesReferenced method.
354 | CHAPTER 8 REFLECTION, CUSTOM ATTRIBUTES, THE CODEDOM, AND LAMBDA EXPRESSIONS
4. You are a developer for a finance department and are building a method that uses reflection
to get a reference to the type of object that was passed as a parameter. Which syntax can be
used to determine an object’s type?
a. Type myType = typeof(myParameter);
b. Object myObject = myParameter.GetType(object);
c. Object myObject = typeof(myParameter);
d. Type myType = myParameter.GetType();
5. You are asked to create a custom attribute that has a single property, called Version, that
allows the caller to determine the version of a method. Which code can create the attribute?
a. class MyCustomAttribute :System.Reflection.Attribute
{ public string Version { get; set; } }
b. class MyCustomAttribute : System.Attribute
{ public string Version { get; set; } }
c. class MyCustomAttribute : System.AttributeUsage
{ public string Version { get; set; } }
d. class MyCustomAttribute : System.ClassAttribute
{ public string Version { get; set; } }
6. Which class in the System.Reflection namespace would you use if you want to determine
all the classes contained in a DLL file?
a. FileInfo
b. Assembly
c. Type
d. Module
7. Which method of the Assembly class allows you to get all the public types defined in
the Assembly?
a. DefinedTypes
b. Types
c. GetExportedTypes
d. GetModules
8. Which property of the Assembly class returns the name of the assembly?
a. Name
b. FullyQualifiedName
c. Location
d. FullName
Chapter Test Questions | 355
9. Which method of the Assembly class returns an instance of the current assembly?
a. GetExecutingAssembly
b. GetAssembly
c. GetCurrentAssembly
d. Assembly
10. Which syntax will Load an Assembly? (Choose all that apply)
a. Assembly.Load(“System.Data, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089″);
b. Assembly.LoadFrom(@”c:\MyProject\Project1.dll”);
c. Assembly.LoadFile(@”c:\MyProject\Project1.dll”);
d. Assembly.ReflectionOnlyLoad((“System.Data, Version=4.0.0.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089″);
11. Which method should you call if you want the .NET Framework to look in the load-context
to load an Assembly?
a. ReflectionOnlyLoad
b. LoadFrom
c. Load
d. LoadFromContext
12. Which method should you call if you want the .NET Framework to look in the load-from
context?
a. ReflectionOnlyLoad
b. LoadFrom
c. Load
d. LoadFromContext
13. Which line creates an instance of a DataTable using reflection?
a. myAssembly.CreateInstance(“System.Data.DataTable”);
b. DataTable.GetType();
c. typeof(“System.Data.DataTable”);
d. myType.CreateInstance(“System.Data.DataTable”);
356 | CHAPTER 8 REFLECTION, CUSTOM ATTRIBUTES, THE CODEDOM, AND LAMBDA EXPRESSIONS
14. Which class would you create if you wanted to determine all the properties contained in a
class using reflection?
a. Assembly
b. Class
c. Property
d. Type
15. How can you determine if a class is public or private?
a. Create an instance of the Type class using the typeof keyword and then examine the
IsPublic property of the Type variable.
b. Create an instance of the Type class using the typeof keyword and then examine the
IsPrivate property of the Type variable.
c. Create an instance of the class within a try catch block and catch the exception if
you cannot create an instance of the class.
d. Create an instance of the class and check the IsPublic property.
16. Which class in the System.Reflection namespace is used to represent a field defined in
a class?
a. PropertyInfo
b. FieldInfo
c. Type
d. EventInfo
17. Which property of the Type class can you use to determine the number of dimension for
an array?
a. GetDimension
b. GetRank
c. GetDimensions
d. GetArrayRank
18. Which statement will returns a private, instance field called “myPrivateField” using
reflection? Assume the myClass variable is an instance of a class.
a. myClass.GetType().GetField(“myPrivateField”,
BindingFlags.NonPublic | BindingFlags.Instance)
b. myClass.myPrivateField
c. myClass.GetType().GetField(“myPrivateField”)
d. myClass. GetType().GetField(“myPrivateField”,
BindingFlags.NonPublic & BindingFlags.Instance)
Additional Reading and Resources | 357
19. Which method of the MethodInfo class can be used to execute the method?
a. Execute
b. Invoke
c. Call
d. Load
20. Which statement uses reflection to execute the method and passes in two parameters given
the following code block?
MyClass myClass = new MyClass();
MethodInfo myMethod = typeof(MyClass).GetMethod(“Multiply”);
a. myMethod.Execute(myClass, new object[] { 4, 5 });
b. myMethod.Execute(MyClass, new object[] { 4, 5 });
c. myMethod.Invoke(myClass, new object[] { 4, 5 });
d. myMethod.Invoke(MyClass, new object[] { 4, 5 });

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