Microsoft 98-372 Online Practice Questions and Exam Preparation

Microsoft 98-372 Online Questions & Answers

• Question 11:

  A class named Student is contained inside a namespace named Contoso.Registration. Another class named Student is contained inside a namespace named Contoso.Contacts.

  You need to use both classes within the same code file. What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

  A. Add the following line of code on the top of the code file, Using Contoso; Refer to the classes by using the Student class wrapped within the regions named Registration and Contacts.
  B. Refer to the classes by using their fully qualified class names, Contoso.Registration.Student and Contoso.Contacts.Student.
  C. Add the following lines of code on the top of the code file. Using Contoso.Contacts; Using Contoso.Registration; Refer to the classes by using the Student class.
  D. Add the following lines of code on the top of the code file. Using RStudent = Contoso.Registration.Student; Using CStudent = Contoso.Contacts.Student; Refer to the classes as RStudent and CStudent.
  A. Add the following line of code on the top of the code file, Using Contoso; Refer to the classes by using the Student class wrapped within the regions named Registration and Contacts.
  C. Add the following lines of code on the top of the code file. Using Contoso.Contacts; Using Contoso.Registration; Refer to the classes by using the Student class.

• Question 12:

  Why do managed languages use references and not pointers?

  A. Pointer notation requires more characters than reference notation.
  B. Pointers are stored by using a fixed amount of memory.
  C. Pointers are not type-safe.
  D. Null pointers can lead to run-time errors.
  C. Pointers are not type-safe.

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  Type-safe accesses only the memory locations it is authorized to access, and only in well- defined, allowable ways. Type-safe code cannot perform an operation on an object that is invalid for that object.

• Question 13:

  Managed code manages:

  A. Processor optimization
  B. Database connections
  C. Source code
  D. Memory
  C. Source code

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  Managed code is a term coined by Microsoft to identify computer program source code that requires and will execute only under the management of a Common Language Runtime virtual machine (resulting in bytecode).

• Question 14:

  You need to encrypt data by using a public key and a private key.

  Which .NET class should you use?

  A. DSACryptoServiceProvider
  B. RijndaelManaged
  C. TripleDESCryptoServiceProvider
  D. DESCryptoServiceProvider
  A. DSACryptoServiceProvider

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  You can use the DSACryptoServiceProvider class to create digital signatures and protect the integrity of your data.

  To use a public-key system to digitally sign a message, the sender first applies a hash function to the mes- sage to create a message digest. The sender then encrypts the message digest with the sender's private key to create the sender's

  personal signature.

• Question 15:

  Which namespace should you reference while using the StreamWriter class?

  A. System.Text
  B. System.Drawing
  C. System.IO
  D. System.Printing
  C. System.IO

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  The StreamWriter class belongs to the System.IO namespace.

• Question 16:

  Which two actions are performed by the .NET Version class? (Choose two.)

  A. Returns the version number of the web browser
  B. Provides the base class for value types.
  C. Returns the version number of an assembly.
  D. Returns the version number of the Common Language Runtime.
  C. Returns the version number of an assembly.
  D. Returns the version number of the Common Language Runtime.

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  The .NET Version class represents the version number of an assembly, operating system, or the common language runtime.

• Question 17:

  The SecureString class:

  A. Ensures that a password is strong enough.
  B. Protects data from being revealed during garbage collection.
  C. Ensures that memory will always be available for a string.
  D. Remains in memory always.
  B. Protects data from being revealed during garbage collection.

• Question 18:

  In the Common Language Runtime (CLR), what information is used to make decisions on security policy?

  A. Code group
  B. Evidence
  C. Cryptography
  D. Permissions
  B. Evidence

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  The Evidence class defines the set of information that constitutes input to security policy decisions.

  Note: Common forms of evidence include signatures and location of origin of code, but can potentially be anything. Objects of any type that are recognized by security policy represent evidence.

• Question 19:

  Type-safe code prevents:

  A. Unauthorized memory access.
  B. Slow performance.
  C. Namespace conflicts.
  D. Format exceptions.
  A. Unauthorized memory access.

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  Type-safe code accesses only the memory locations it is authorized to access.

• Question 20:

  In which file does a .NET Windows application store information that has been customized for a particular instance of the application?

  A. Web.config
  B. User.config
  C. Machine.config
  D. App.config
  B. User.config