What kind of access control utilizes technology for entry authorization?

The correct answer, which focuses on the use of technology for entry authorization, highlights how electronic card access systems function. These systems often utilize electronic keycards or proximity cards that, when swiped or presented near a reader, allow the system to authenticate the user and grant access based on pre-set permissions. This process typically involves the integration of software to manage user credentials and access levels, making it distinctly reliant on technology.

While mechanical keys rely on physical attributes for entry, and biometric systems incorporate advanced technology to scan unique physical traits such as fingerprints or irises, the emphasis on entry authorization through technology clearly aligns more directly with electronic card systems. Mechanical keys do not involve technology in the same way and can be less secure. Biometric systems, while also relying on technology, may be considered a different type of access control as they do not use cards or physical tokens for authorization, instead functioning based on personal identifiers. Therefore, while both biometric and electronic access are technological methods, the question specifically underscores the mechanism of entry authorization which is best illustrated by electronic card access systems.