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Susan has discovered that the smart card-based locks used to keep the facility she works at secure are not effective because staff members are propping the doors open. She places signs on the doors reminding staff that leaving the door open creates a security issue, and she adds alarms that will sound if the doors are left open for more than five minutes. What type of controls has she put into place?

A. Physical B. Administrative C. Compensation D. Recovery

Answer the following statements true (T) or false (F)

1. A digital signature can guarantee the integrity but not the source of the message. 2. It must be computationally infeasible to forge a digital signature, either by constructing a new message for an existing digital signature or by constructing a fraudulent digital signature for a given message. 3. The global public key components for DSA are p, q, and h. 4. The most important development from the work on public-key cryptography is the digital signature. 5. The ElGamal signature scheme involves the use of the public key for encryption and the private key for decryption.