A unique identifier for a transaction is a __________ and this identifier may be a timestamp, a counter or a random number, with the minimum requirement being that it differs with each request.
Fill in the blank(s) with the appropriate word(s).
nonce
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Which of the following is not one of the four basic software development activities?
a) establishing the requirements b) creating a design c) preliminary practice coding d) testing e) implementing the design
Answer the following statements true (T) or false (F)
1) In Java, array indexes begin at 0 and end at one less than the length of the array. 2) If an array is declared to hold objects, none of the objects can have instance variables that are arrays. 3) An array declared as an int[] can contain elements of different primitive types. 4) The elements of a two-dimensional array are called rows and columns. 5) It is possible to store 11 elements in an array that is declared in the following way. ``` int[] array = new int[10]; ```