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A Social Security Number which appears in the format 123-456-7891 is an example of a(n) ____.

A. field value B. predefined input mask C. aggregate function D. variance

Which of the following statements about general-list searches and traversals is false?

A. Searches must be done using a sequential search algorithm. B. General list traversals start at the beginning and process each node until the last node has been processed. C. The link field in the current node is used to determine which node is processed next. D. The search algorithm uses a predecessor pointer. E. The end of the search is identified by a null link node.