What is the connection on a digital SLR that provides the mechanical and electrical interface for an external flash called?

• A. Hot Shoe
• B. Cold Shoe
• C. PC Sync Port
• D. Sync Terminal

Answer: (A)

The top of a digital SLR that provides both the physical mount and the electrical signal to an external flash is the hot shoe. It isn’t just a place to physically attach the flash; it carries electrical contacts that allow the camera to trigger the flash and, in many systems, to communicate exposure information for automatic TTL metering. That combination of mechanical mounting plus live electrical connection is what sets the hot shoe apart from a cold shoe, which only provides a frame to attach the flash without any electrical signals. Other options like a PC Sync Port or a Sync Terminal are separate connectors used for triggering flashes with cables rather than the built-in top interface, so they don’t fulfill the on-camera, integrated flash interface role.