A Java block is a pair of matching ____, plus any declarations or statements within them.
A. asterisks (* and *)
B. parentheses (( and ))
C. square brackets ([ and ])
D. curly braces ({ and })
Answer: D
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Which of the following is NOT a reason why managers would archive data?
A) Managers do not have access to data warehouses; thus, they want to keep their own copies of data to refer to as needed. B) Managers do not want to delete historical data because it can be used to help manage and develop their business. C) A manager may decide at some point, perhaps once you have a few years' worth of data, that you want to archive some of the older data into another database. D) A major use of historical data is for forecasting.
________ are used to screen data coming onto a LAN and, if the message is deemed safe, send it through to the intended receiver.
(a) Packet-filtering firewalls. (b) Kerberos. (c) Application level gateways. (d) Biometrics.