Which of the following elements are block-level elements?
A. paragraph
B. heading
C. both a and b
D. none of the above
Answer: C
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Suppose we have two constructors for a class, one that passes in parameters and one that doesn’t. Which of the following is true?
A. Because we have two constructors when there should only be one, we will get a compiler error when we try to compile the program. B. The client will be able to use the constructor that passes in parameters, but the client will not be able to use the constructor that doesn’t pass in parameters. C. The client can use either one of these constructors, whichever one suits his/her needs. D. It would be extremely poor programming practice for the client to use the constructor that passes in no parameters.
Feistel proposed that we can approximate the ideal block cipher by utilizing the concept of a __________ cipher, which is the execution of two or more simple ciphers in sequence in such a way that the final result or product is cryptographically stronger than any of the component ciphers.
A) ?linear ? B) ?permutation ? C) ?differential ? D) ?product
Which of the following commands changes the value in a column?
A. UPDATE B. CHANGE C. REPLACE D. ADD
Which of the following correctly represents order of the seven layers of the OSI model from layer 1 to layer 7?
a. physical, network, data link, session, transport, application, presentation b. physical, data link, network, transport, session, application, presentation c. physical, data link, network, transport, session, presentation, application d. data link, physical, network, session, transport, application, presentation e. data link, physical, network, transport, session, presentation, application