Credit Card Processing Uses a Check Digit Formula Called the ________

question 53

Multiple Choice

Credit card processing uses a check digit formula called the ________ formula.

• A) RFID
• B) modulus 3
• C) Luhn
• D) regular expression
• E) DTD

---

Definitions:

Venography

An imaging procedure that involves injecting a contrast dye to visualize veins, used to detect clots or blockages.

Contrast Medium

A substance used in medical imaging to improve the contrast of structures or fluids within the body, making them more visible on scans.

Ionization

The process by which an atom or molecule acquires a negative or positive charge by gaining or losing electrons.

Wavelengths

The distance between corresponding points of two consecutive waves, often used in the contexts of light, sound, and other waves.