What is a tool that you can use to emulate and simulate a site that’s experiencing poor or unreliable connectivity?
The correct answer is:
WebPagetest is an online service that enables a set of performance tests to be run for your site using a variety of networks and host locations. For example, you can try out your site from a server in India on a 2G network, or over cable from a city in the US.
Read more here: https://support.google.com/partners/answer/7336589