You work as a Software Developer for ABC Inc. The company uses Visual Studio .NET as its application development platform. You need to write a code segment that transfers the contents of a byte array named ToSend by using a NetworkStream object named NetStr. You want to use a cache of size only 8,192 bytes. Which of the following code segments will you use to accomplish the task?

• A. BufferedStream BStream = new BufferedStream(NetStr); BStream.Write(ToSend, 0, 8192);
• B. BufferedStream BStream = new BufferedStream(NetStr, 8192); BStream.Write(ToSend, 0, ToSend.Length);
• C. MemoryStream MStream = new MemoryStream(8192); MStream.Write(ToSend, 0, (int) NetStr.Length);
• D. MemoryStream MStream = new MemoryStream(8192); NetStr.Write(ToSend, 0, (int) MStream.Length);

Maria works as a Software Developer for ManSoft Inc. She develops an application using Visual Studio .NET 2005. Maria wants to ensure that only employees of the Accounts department can view the application. Therefore, she decides to change the configuration settings in the Web.config file.
What will Maria do to accomplish the task?

• A. Add the <authentication> element in the Web.config file.
• B. Add the <authorization> element in the Web.config file. Then add the <allow users="Accounts" /> attribute in the element.
• C. Add the <authorization> element in the Machine.config file. Then add the <allow roles="Accounts" /> attribute in the element.
• D. Add the <authorization> element in the Web.config file.

You work as a Software Developer for ABC Inc. The company uses Visual Studio .NET 2008 as its application development platform. You create an ASP.NET Web application using .NET Framework 3.5. The application uses the Forms authentication mode. Each folder in the application contains confidential Microsoft Excel files. You are required to make sure that bots are not allowed to access the folders in the application. What will you do?
Each correct answer represents a part of the solution. Choose two.

• A. Set the authorization mode of the traceElements attribute value in the Web.config file.
• B. Add a <deny> element to the <authorization> element in the Web.config file.
• C. Map the Excel files to the ASP.NET ISAPI filter.
• D. Implement a Completely Automated Public Turing Tests to Tell Computers and Humans Apart (CAPTCHA) image control on each page of the application.
• E. Add a <allow> element to the <authorization> element in the Web.config file.

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, true);
  Console.WriteLine("Encrypted : {0}", ByteConverter.GetString(encryptData));
  decryptData = RSA.Decrypt(encryptData,true);
  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, true);
  Console.WriteLine("Encrypted : {0}", ByteConverter.GetString(encryptData));
  decryptData = RSA.Decrypt(encryptData,false);
  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, false);
  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, false);
  Console.WriteLine("Encrypted : {0}", ByteConverter.GetString(encryptData));
  decryptData = RSA.Decrypt(encryptData,false);
  Console.WriteLine("Decrypted : {0}", ByteConverter.GetString(decryptData));