Near Field Communication (NFC) is the most suitable connection method for the user's need to quickly collect contact information. NFC allows for short-range communication between compatible devices by simply bringing them close together or tapping them together. This feature is ideal for exchanging contact information or transferring small amounts of data quickly and conveniently, making it perfect for a sales environment at a conference. This recommendation is supported by the CompTIA A+ Core 1 (220-1101) Exam Objectives, specifically in sections 2.3 "Compare and contrast protocols for wireless networking" and 1.3 "Given a scenario set up and configure accessories and ports of mobile devices", where NFC is mentioned as a connection method for mobile devices .