Which of the following are considered physical devices for Type 2 authentication?

Type 2 authentication, also known as something you have, typically involves physical devices that a user possesses and must present to gain access. In this context, physical devices are tangible items that you can hold or carry. The correct answer refers to items such as a key, swipe card, access card, or badge. These items serve as a form of identification that allows the user to access secure areas or systems, making them essential components in physical security and authentication processes.

Username and password, in contrast, are considered a Type 1 authentication method—something you know—and do not involve any physical component. Similarly, a fingerprint scanner is a biometric device, which falls under Type 3 authentication - something you are. One-time passcode apps generate a unique code for authentication but do not represent a physical device; they are software-based, representing another form of authentication that relies on ownership of a mobile device or an account rather than a physical token. This distinction is crucial when classifying different authentication methods and understanding their applications in security practices.