มีท่านใดทราบมั้ยครับว่า codeเหล่านี้ในไฟล์ Web.Config มันหมายถึงอะไร?

<system.serviceModel>
    <behaviors>
      <endpointBehaviors>
        <behavior name="WebSpring.Service1AspNetAjaxBehavior">
          <enableWebScript/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
    <services>
      <service name="WebSpring.Service1">
        <endpoint address="" behaviorConfiguration="WebSpring.Service1AspNetAjaxBehavior" binding="webHttpBinding" contract="WebSpring.Service1"/>
      </service>
    </services>
  </system.serviceModel>

<?xml version="1.0" encoding="UTF-8" ?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
      
  <appSettings>
    <add key="Facebook.API_KEY" value="122433074492941"/>
    <add key="Facebook.APP_NAME" value="Spriiing"/>
    <add key="Facebook.REQPermissions" value="publish_stream,user_about_me,offline_access,email"/>
  </appSettings>
  <system.web>
  	<!--<globalization culture="th-TH" requestEncoding="utf-8" responseEncoding="utf-8" />-->
	<globalization fileEncoding="windows-874" culture="th-TH" uiCulture="th-TH" requestEncoding="windows-874" responseEncoding="windows-874"/>
    <customErrors mode="Off"/>
    <compilation debug="true" strict="false" explicit="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <add assembly="System.Web.Extensions.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
        <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
      </assemblies>
    </compilation>
    <membership>
      <providers>
        <clear/>
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/"/>
      </providers>
    </membership>
    <profile>
      <providers>
        <clear/>
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
      </providers>
    </profile>
    <roleManager enabled="false">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/"/>
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/"/>
      </providers>
    </roleManager>
  </system.web>
  <system.webServer>
<httpErrors errorMode="Detailed" />
         <asp scriptErrorSentToBrowser="true"/>
 
  	<!--<httpRedirect enabled="true" destination="http://www.missuniversethailand.com/home2.aspx" httpResponseStatus="Permanent" />-->
    <modules runAllManagedModulesForAllRequests="true"/>
    <security>
      <authentication>
        <basicAuthentication enabled="true" />
      </authentication>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="30000000" />
      </requestFiltering>
    </security>
  </system.webServer>
  <system.serviceModel>
    <behaviors>
      <endpointBehaviors>
        <behavior name="WebSpring.Service1AspNetAjaxBehavior">
          <enableWebScript/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
    <services>
      <service name="WebSpring.Service1">
        <endpoint address="" behaviorConfiguration="WebSpring.Service1AspNetAjaxBehavior" binding="webHttpBinding" contract="WebSpring.Service1"/>
      </service>
    </services>
  </system.serviceModel>
</configuration>