最新のGSSP-NET問題集で試験を準備する

Maria works as a Software Developer for BlueWell Inc. She develops an application, named App1, using Visual C# .NET. App1 contains a Form control, named Form1, for collecting users' contact information. Form1 contains a TextBox control, named TextBox1. App1 requires users to enter data in TextBox1. Maria writes a method, named Method1, to validate the entered data. She adds an ErrorProvider control, named Control1, to Form1. Maria wants to ensure that App1 notifies the users if they enter invalid data in TextBox1. Which of the following code will she use to accomplish this?

• A. public void TextBox1_Validating(object sender, System.ComponentModel.CancelEventArgs e) { if(Method1() == false) { Control1.SetError(TextBox1, "Invalid Email Entry."); } }
• B. public void TextBox1_Validated(object sender, System.ComponentModel.CancelEventArgs e) { if(Method1() == false) { Control1.UpdateBinding(); } }
• C. public void TextBox1_Validated(object sender, System.ComponentModel.CancelEventArgs e) { if(Method1() == false) { Control1.SetError(TextBox1, "Invalid Email Entry."); } }
• D. public void TextBox1_Validating(object sender, System.CancelEventArgs e) { if(Method1() == false) { Control1.UpdateBinding(); } }

You work as a Software Developer for ABC Inc. You create a Console application to create multiple satellite assemblies. Which of the following statements about satellite assemblies are true?
Each correct answer represents a complete solution. Choose all that apply.

• A. An application can have only one satellite assembly.
• B. The Assembly Linker tool is used to compile .resources files into satellite assemblies.
• C. They are used to deploy language-specific resources for an application.
• D. They do not contain any executable code.

You work as a Software Developer for ABC Inc. The company uses Visual Studio .NET 2005 as its application development platform. You are developing the data access component that all applications in your company intranet will use to access Microsoft SQL Server. You must include code to correctly catch and iterate through any number of errors that could be encountered when connecting to SQL Server. Which code segment should you choose?

• A. string connectionString =
  "server=(local); database=Northwind;"
  + "integrated security=true;";
  using (SqlConnection cnn = new SqlConnection(connectionString)){
  try {
  cnn.Open();
  } catch (Exception ex) {
  // handle the exception...
  } catch (SqlException ex) {
  foreach (SqlError error in ex.Errors) {
  // handle the exception...
  }
  } finally {
  // clean up
  } }
• B. string connectionString =
  "server=(local); database=Northwind;"
  +
  "integrated security=true;";
  using (SqlConnection cnn = new SqlConnection(connectionString)){
  try {
  cnn.Open();
  } catch (SqlException ex) {
  switch (ex.Number) {
  case 1:
  // handle the exception...
  break;
  default:
  // handle the exception...
  break;
  }
  } catch (Exception ex) {
  // handle the exception...
  } finally {
  // clean up
  }
  }
• C. string connectionString =
  "server=(local); database=Northwind;"
  +
  "integrated security=true;";
  using (SqlConnection cnn = new SqlConnection(connectionString)){
  try {
  cnn.Open();
  } catch (SqlException ex) {
  foreach (SqlError error in ex.Errors) {
  // handle the exception...
  }
  } catch (Exception ex) {
  // handle the exception...
  } finally {
  // clean up
  }
  }
• D. string connectionString =
  "server=(local); database=Northwind;"
  +
  "integrated security=true;";
  using (SqlConnection cnn = new SqlConnection(connectionString))}
  try {
  cnn.Open();
  } catch (SqlException ex) {
  switch (ex.Number) {
  case 1:
  // handle the exception...
  break;
  default:
  // handle the exception...
  break;
  }
  } catch (Exception ex) {
  // handle the exception...
  }
  }

You work as a Software Developer for ABC Inc. The company uses Visual Studio .NET as its application development platform. You create a class library using the .NET Framework. The library will be used to open the NSCs of computers. Later, you will set up the class library to the GAC and provide it Full Trust permission. You write down the following code segments for the socket connections:
SocketPermission permission = new SocketPermission(PermissionState.Unrestricted);
permission.Assert();
A number of the applications that use the class library may not have the necessary permissions to open the network socket connections. Therefore, you are required to withdraw the assertion. Which of the following code segments will you use to accomplish the task?

• A. permission.Demand();
• B. CodeAccessPermission.RevertDeny();
• C. permission.PermitOnly();
• D. CodeAccessPermission.RevertAssert();
• E. permission.Deny();

You work as a Software Developer for ABC Inc. You create a Console application named
ConsoleApplication4. You use the System.Security.Cryptography namespace. You want to use the key lengths of 384 bits to 16384 bits. You use RSACryptoServiceProvider class to encrypt and decrypt data. Which of the following code segments will you use to accomplish this task?
Each correct answer represents a part of the solution. Choose all that apply.

• A. UnicodeEncoding ByteConverter = new UnicodeEncoding();
  byte[] DataToEncrypt = ByteConverter.GetBytes("Encrypt this line for testing");
  byte[] encryptData;
  byte[] decryptData;
  RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
  encryptData = RSA.Encrypt(DataToEncrypt, false);
  Console.WriteLine("Encrypted : {0}", ByteConverter.GetString(encryptData)); decryptData = RSA.Decrypt(encryptData,false); Console.WriteLine("Decrypted : {0}", ByteConverter.GetString(decryptData));
• B. UnicodeEncoding ByteConverter = new UnicodeEncoding();
  byte[] DataToEncrypt = ByteConverter.GetBytes("Encrypt this line for testing");
  byte[] encryptData;
  byte[] decryptData;
  RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
  encryptData = RSA.Encrypt(DataToEncrypt, false);
  Console.WriteLine("Encrypted : {0}", ByteConverter.GetString(encryptData));
  decryptData = RSA.Decrypt(encryptData,true);
  Console.WriteLine("Decrypted : {0}", ByteConverter.GetString(decryptData));
• C. UnicodeEncoding ByteConverter = new UnicodeEncoding();
  byte[] DataToEncrypt = ByteConverter.GetBytes("Encrypt this line for testing");
  byte[] encryptData;
  byte[] decryptData;
  RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
  encryptData = RSA.Encrypt(DataToEncrypt, true);
  Console.WriteLine("Encrypted : {0}", ByteConverter.GetString(encryptData));
  decryptData = RSA.Decrypt(encryptData,true);
  Console.WriteLine("Decrypted : {0}", ByteConverter.GetString(decryptData));
• D. UnicodeEncoding ByteConverter = new UnicodeEncoding();
  byte[] DataToEncrypt = ByteConverter.GetBytes("Encrypt this line for testing");
  byte[] encryptData;
  byte[] decryptData;
  RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
  encryptData = RSA.Encrypt(DataToEncrypt, true);
  Console.WriteLine("Encrypted : {0}", ByteConverter.GetString(encryptData));
  decryptData = RSA.Decrypt(encryptData,false);
  Console.WriteLine("Decrypted : {0}", ByteConverter.GetString(decryptData));