什么是SqlConnection类中的默认网络协议

在以下代码片段中，将用于连接到SQL Server的网络协议是什么？ TCP/IP或命名管道或其他？什么是SqlConnection类中的默认网络协议

using System; 
using System.Data.SqlClient; 

class Program 
{ 
    static void Main() 
    { 
    // 
    // First access the connection string. 
    // ... This may be autogenerated in Visual Studio. 
    // 
    string connectionString = "Server=SERVER\\INSTANCE;Database=myDataBase;User Id=myUsername; 
Password=myPassword;" 
    // 
    // In a using statement, acquire the SqlConnection as a resource. 
    // 
    using (SqlConnection con = new SqlConnection(connectionString)) 
    { 
     // 
     // Open the SqlConnection. 
     // 
     con.Open(); 
     // 
     // The following code uses an SqlCommand based on the SqlConnection. 
     // 
     using (SqlCommand command = new SqlCommand("SELECT TOP 2 * FROM Dogs1", con)) 
     using (SqlDataReader reader = command.ExecuteReader()) 
     { 
     while (reader.Read()) 
     { 
      Console.WriteLine("{0} {1} {2}", 
      reader.GetInt32(0), reader.GetString(1), reader.GetString(2)); 
     } 
     } 
    } 
    } 
}

来源

2014-08-28 Rajesh Subramanian