Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools. As inputs, Port B pins that are externally pulled low will source current if the pull-up resistors are activated. The Port B output buffers have symmetrical drive characteristics with both high sink and source capability. Automated Test using Namebench: Use this free Google-created software from 2010 to automatically (and repeatedly) test multiple DNS servers to measure speed and response time.
There two ways you can test the available DNS servers to find out which one is the fastest for you.
