CompTIA Security+ Exam Prep

Answer: C - Hand Topography is a biometric measure that looks at different peaks and valleys of the hand. Hand topology looks at the different peaks and valleys of the hand, along with this overall shape and curvature. When an individual wants to be authenticated, she places her hand on the system. Off to one side of the systems, a camera snaps side-view pictures of the hand from a different view and angle than that of systems target hand geometry, and thus captures different data. This attribute is not unique enough to authenticate individuals by itself and is commonly used in conjunction with hand geometry.