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The correct answer is B.

OBJ-2.1: A server lock is a physical locking mechanism installed on a server cabinet to prevent unauthorized from accessing the servers. The server lock could be a cipher lock, biometric lock, or a simple keyed lock depending on the level of security needed. USB lock prevents unauthorized data transfer through USB ports, reducing the risk of data leakage, data theft, computer viruses, and malware by physically locking and blocking the USB Ports. A smart card, chip card, PIV card, or integrated circuit card is a physical, electronic authorization device used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit chip. In high-security environments, employee badges may contain a smart card embedded chip that must be inserted into a smart card reader to log in or access information on the system. An entry control roster is an administrative control used to log each person who enters or leaves a secure room.

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