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Question 5 (4 points) Listen All of the following are characteristics of backward recovery, except 1) one of the inputs is the last database backup copy 2) one of the inputs is the log starting with the last change to the database 3) one of the inputs is the current database 4) the roll backward program works on a last-in, first-out basis 5) after rolling backward, an automated procedure can roll forward Question 6 (4 points) Listen All of the following are true about computer viruses, except... 1) they can travel from one computer to another on electric power lines 2) they can travel from one computer to another on diskettes 13) they can travel from one computer to another on telecommunications lines 4) they are capable of copying themselves 5) some are capable of corrupting data Question 7 (4 points) Listen In a public key encryption algorithm 1) the public key is used for encryption and the private key is used for decryption 2) the private key is used for encryption and the public key is used for decryption 3) a private key is used for both encryption and decryption a 4) a public key is used for both encryption and decryption a 5) a symmetric key is used for both encryption and decryption Question 8 (4 points) Listen The combination of views and the SQL GRANT command can do all of the following. except 1) limit access to a table 2) limit access to part of a table 3) restrict access to a table to read-only access 4) restrict access to a table to create a new table 5) restrict access to a table to read-only and update access