What is the fine-grained topic of the following text: The survey was conducted to further explore areas highlighted in the second volume of Equinix’s annual market study, the Global Interconnection Index (GXI), which analyses traffic exchange globally, Interconnection, or direct and private traffic exchange between key business partners, is becoming the de facto method for companies to operate in today’s digital world. Only return the topic.
Interconnection and Traffic Exchange in Digital Business Operations