If two different processes read from the same pipe,
A. one will get some data, the other will get the rest
B. both will read the same data
A. one will get some data, the other will get the rest
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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
A __________ does NOT indicate where (or how) the data is physically stored.
a. physical I/O request b. logical I/O request c. both A and B d. neither A nor B
An exception object’s ________ method returns the exception’s error message.
a. String b. Message c. Error d. toString
The keyboard shortcut to hide or show formulas in a worksheet is ________
A) Ctrl + ~ B) Ctrl + @ C) Alt + ~ D) Alt + @