Do you avoid using duplicate connection string in web.config?

<introEmbed body={<> Since we have many ways to use Connection String in .NET 2.0, it is probably that we are using duplicate connection string in web.config. </>} />

<connectionStrings>
    <add
        name="ConnectionString"
        connectionString="Server=(local);
        Database=NorthWind;"
    />
</connectionStrings>

<appSettings>
    <add key="ConnectionString" value="Server=(local);Database=NorthWind;"/>
</appSettings>

❌ Figure: Bad example - Using duplicate connection string in web.config