A _________ is an encryption/decryption scheme in which a block of plaintext is treated as a whole and used to produce a ciphertext block of equal length. ?
Fill in the blank(s) with the appropriate word(s).
block cipher
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In the following code, what values could be read into number to terminate the while loop?
``` Scanner keyboard = new Scanner(System.in); System.out.print("Enter a number: "); int number = keyboard.nextInt(); while (number < 100 || number > 500) { System.out.print("Enter another number: "); number = keyboard.nextInt(); } ``` a. Numbers less than 100 b. Numbers greater than 500 c. Numbers in the range 100 - 499 d. Numbers in the range 100 - 500
In a Select Case block, if more than one Case clause matches the selector,
(A) only the statements associated with the first matching Case clause will be executed. (B) all of the statements associated with each matching Case clause will be executed. (C) only the statements associated with the last matching Case clause will be executed. (D) the program will malfunction and stop.